# Changelog # $Id: CHANGES 4637 2005-12-01 01:35:38Z mmatthews $ 11-30-05 - Version 3.1.12 - Fixed client-side prepared statement bug with embedded ? inside quoted identifiers (it was recognized as a placeholder, when it was not). - Don't allow executeBatch() for CallableStatements with registered OUT/INOUT parameters (JDBC compliance). - Fall back to platform-encoding for URLDecoder.decode() when parsing driver URL properties if the platform doesn't have a two-argument version of this method. - Fixed BUG#14562 - Java type conversion may be incorrect for mediumint. - Added configuration property "useGmtMillisForDatetimes" which when set to true causes ResultSet.getDate(), .getTimestamp() to return correct millis-since GMT when .getTime() is called on the return value (currently default is "false" for legacy behavior). - Fixed DatabaseMetaData.stores*Identifiers(): * if lower_case_table_names=0 (on server): storesLowerCaseIdentifiers() returns false storesLowerCaseQuotedIdentifiers() returns false storesMixedCaseIdentifiers() returns true storesMixedCaseQuotedIdentifiers() returns true storesUpperCaseIdentifiers() returns false storesUpperCaseQuotedIdentifiers() returns true * if lower_case_table_names=1 (on server): storesLowerCaseIdentifiers() returns true storesLowerCaseQuotedIdentifiers() returns true storesMixedCaseIdentifiers() returns false storesMixedCaseQuotedIdentifiers() returns false storesUpperCaseIdentifiers() returns false storesUpperCaseQuotedIdentifiers() returns true - Fixed BUG#14815 - DatabaseMetaData.getColumns() doesn't return TABLE_NAME correctly. - Fixed BUG#14909 - escape processor replaces quote character in quoted string with string delimiter. - Fixed BUG#12975 - OpenOffice expects DBMD.supportsIntegrityEnhancementFacility() to return "true" if foreign keys are supported by the datasource, even though this method also covers support for check constraints, which MySQL _doesn't_ have. Setting the configuration property "overrideSupportsIntegrityEnhancementFacility" to "true" causes the driver to return "true" for this method. - Added "com.mysql.jdbc.testsuite.url.default" system property to set default JDBC url for testsuite (to speed up bug resolution when I'm working in Eclipse). - Fixed BUG#14938 - Unable to initialize character set mapping tables (due to J2EE classloader differences). - Fixed BUG#14972 - Deadlock while closing server-side prepared statements from multiple threads sharing one connection. - Fixed BUG#12230 - logSlowQueries should give better info. - Fixed BUG#13775 - Extraneous sleep on autoReconnect. - Fixed BUG#15024 - Driver incorrectly closes streams passed as arguments to PreparedStatements. Reverts to legacy behavior by setting the JDBC configuration property "autoClosePStmtStreams" to "true" (also included in the 3-0-Compat configuration "bundle"). - Fixed BUG#13048 - maxQuerySizeToLog is not respected. Added logging of bound values for execute() phase of server-side prepared statements when profileSQL=true as well. - Fixed BUG#15065 - Usage advisor complains about unreferenced columns, even though they've been referenced. - Don't increase timeout for failover/reconnect (BUG#6577) - Process escape tokens in Connection.prepareStatement(...), fix for BUG#15141. You can disable this behavior by setting the JDBC URL configuration property "processEscapeCodesForPrepStmts" to "false". - Fixed BUG#13255 - Reconnect during middle of executeBatch() should not occur if autoReconnect is enabled. 10-07-05 - Version 3.1.11 - Fixed BUG#11629 - Spurious "!" on console when character encoding is "utf8". - Fixed statements generated for testcases missing ";" for "plain" statements. - Fixed BUG#11663 - Incorrect generation of testcase scripts for server-side prepared statements. - Fixed regression caused by fix for BUG#11552 that caused driver to return incorrect values for unsigned integers when those integers where within the range of the positive signed type. - Moved source code to svn repo. - Fixed BUG#11797 - Escape tokenizer doesn't respect stacked single quotes for escapes. - GEOMETRY type not recognized when using server-side prepared statements. - Fixed BUG#11879 -- ReplicationConnection won't switch to slave, throws "Catalog can't be null" exception. - Fixed BUG#12218, properties shared between master and slave with replication connection. - Fixed BUG#10630, Statement.getWarnings() fails with NPE if statement has been closed. - Only get char[] from SQL in PreparedStatement.ParseInfo() when needed. - Fixed BUG#12104 - Geometry types not handled with server-side prepared statements. - Fixed BUG#11614 - StringUtils.getBytes() doesn't work when using multibyte character encodings and a length in _characters_ is specified. - Fixed BUG#11798 - Pstmt.setObject(...., Types.BOOLEAN) throws exception. - Fixed BUG#11976 - maxPerformance.properties mis-spells "elideSetAutoCommits". - Fixed BUG#11575 -- DBMD.storesLower/Mixed/UpperIdentifiers() reports incorrect values for servers deployed on Windows. - Fixed BUG#11190 - ResultSet.moveToCurrentRow() fails to work when preceeded by a call to ResultSet.moveToInsertRow(). - Fixed BUG#11115, VARBINARY data corrupted when using server-side prepared statements and .setBytes(). - Fixed BUG#12229 - explainSlowQueries hangs with server-side prepared statements. - Fixed BUG#11498 - Escape processor didn't honor strings demarcated with double quotes. - Lifted restriction of changing streaming parameters with server-side prepared statements. As long as _all_ streaming parameters were set before execution, .clearParameters() does not have to be called. (due to limitation of client/server protocol, prepared statements can not reset _individual_ stream data on the server side). - Reworked Field class, *Buffer, and MysqlIO to be aware of field lengths > Integer.MAX_VALUE. - Updated DBMD.supportsCorrelatedQueries() to return true for versions > 4.1, supportsGroupByUnrelated() to return true and getResultSetHoldability() to return HOLD_CURSORS_OVER_COMMIT. - Fixed BUG#12541 - Handling of catalog argument in DatabaseMetaData.getIndexInfo(), which also means changes to the following methods in DatabaseMetaData: - getBestRowIdentifier() - getColumns() - getCrossReference() - getExportedKeys() - getImportedKeys() - getIndexInfo() - getPrimaryKeys() - getProcedures() (and thus indirectly getProcedureColumns()) - getTables() The "catalog" argument in all of these methods now behaves in the following way: - Specifying NULL means that catalog will not be used to filter the results (thus all databases will be searched), unless you've set "nullCatalogMeansCurrent=true" in your JDBC URL properties. - Specifying "" means "current" catalog, even though this isn't quite JDBC spec compliant, it's there for legacy users. - Specifying a catalog works as stated in the API docs. - Made Connection.clientPrepare() available from "wrapped" connections in the jdbc2.optional package (connections built by ConnectionPoolDataSource instances). - Added Connection.isMasterConnection() for clients to be able to determine if a multi-host master/slave connection is connected to the first host in the list. - Fixed BUG#12753 - Tokenizer for "=" in URL properties was causing sessionVariables=.... to be parameterized incorrectly. - Fixed BUG#11781, foreign key information that is quoted is parsed incorrectly when DatabaseMetaData methods use that information. - The "sendBlobChunkSize" property is now clamped to "max_allowed_packet" with consideration of stream buffer size and packet headers to avoid PacketTooBigExceptions when "max_allowed_packet" is similar in size to the default "sendBlobChunkSize" which is 1M. - CallableStatement.clearParameters() now clears resources associated with INOUT/OUTPUT parameters as well as INPUT parameters. - Fixed BUG#12417 - Connection.prepareCall() is database name case-sensitive (on Windows systems). - Fixed BUG#12752 - Cp1251 incorrectly mapped to win1251 for servers newer than 4.0.x. - Fixed BUG#12970 - java.sql.Types.OTHER returned for BINARY and VARBINARY columns when using DatabaseMetaData.getColumns(). - ServerPreparedStatement.getBinding() now checks if the statement is closed before attempting to reference the list of parameter bindings, to avoid throwing a NullPointerException. - Fixed BUG#13277 - ResultSetMetaData from Statement.getGeneratedKeys() caused NullPointerExceptions to be thrown whenever a method that required a connection reference was called. - Backport of Field class, ResultSetMetaData.getColumnClassName(), and ResultSet.getObject(int) changes from 5.0 branch to fix behavior surrounding VARCHAR BINARY/VARBINARY and related types. - Fixed NullPointerException when converting "catalog" parameter in many DatabaseMetaDataMethods to byte[]s (for the result set) when the parameter is null. ("null" isn't technically allowed by the JDBC specification, but we've historically allowed it). - Backport of VAR[BINARY|CHAR] [BINARY] types detection from 5.0 branch. - Read response in MysqlIO.sendFileToServer(), even if the local file can't be opened, otherwise next query issued will fail, because it's reading the response to the empty LOAD DATA INFILE packet sent to the server. - Workaround for BUG#13374 - ResultSet.getStatement() on closed result set returns NULL (as per JDBC 4.0 spec, but not backwards-compatible). Set the connection property "retainStatementAfterResultSetClose" to "true" to be able to retrieve a ResultSet's statement after the ResultSet has been closed via .getStatement() (the default is "false", to be JDBC-compliant and to reduce the chance that code using JDBC leaks Statement instances). - Fixed BUG#13453 - URL configuration parameters don't allow '&' or '=' in their values. The JDBC driver now parses configuration parameters as if they are encoded using the application/x-www-form-urlencoded format as specified by java.net.URLDecoder - http://java.sun.com/j2se/1.5.0/docs/api/java/net/URLDecoder.html If the '%' character is present in a configuration property, it must now be represented as %25, which is the encoded form of '%' when using application/x-www-form-urlencoded encoding. - The configuration property "sessionVariables" now allows you to specify variables that start with the "@" sign. - Fixed BUG#13043 - when 'gatherPerfMetrics' is enabled for servers older than 4.1.0, a NullPointerException is thrown from the constructor of ResultSet if the query doesn't use any tables. 06-23-05 - Version 3.1.10-stable - Fixed connecting without a database specified raised an exception in MysqlIO.changeDatabaseTo(). - Initial implemention of ParameterMetadata for PreparedStatement.getParameterMetadata(). Only works fully for CallableStatements, as current server-side prepared statements return every parameter as a VARCHAR type. - Fixed BUG#11552 - Server-side prepared statements return incorrect values for unsigned TINYINT, SMALLINT, INT and Long. - Fixed BUG#11540 - Incorrect year conversion in setDate(..) for system that use B.E. year in default locale. 06-22-05 - Version 3.1.9-stable - Overhaul of character set configuration, everything now lives in a properties file. - Driver now correctly uses CP932 if available on the server for Windows-31J, CP932 and MS932 java encoding names, otherwise it resorts to SJIS, which is only a close approximation. Currently only MySQL-5.0.3 and newer (and MySQL-4.1.12 or .13, depending on when the character set gets backported) can reliably support any variant of CP932. - Fixed BUG#9064 - com.mysql.jdbc.PreparedStatement.ParseInfo does unnecessary call to toCharArray(). - Fixed Bug#10144 - Memory leak in ServerPreparedStatement if serverPrepare() fails. - Actually write manifest file to correct place so it ends up in the binary jar file. - Added "createDatabaseIfNotExist" property (default is "false"), which will cause the driver to ask the server to create the database specified in the URL if it doesn't exist. You must have the appropriate privileges for database creation for this to work. - Fixed BUG#10156 - Unsigned SMALLINT treated as signed for ResultSet.getInt(), fixed all cases for UNSIGNED integer values and server-side prepared statements, as well as ResultSet.getObject() for UNSIGNED TINYINT. - Fixed BUG#10155, double quotes not recognized when parsing client-side prepared statements. - Made enableStreamingResults() visible on com.mysql.jdbc.jdbc2.optional.StatementWrapper. - Made ServerPreparedStatement.asSql() work correctly so auto-explain functionality would work with server-side prepared statements. - Made JDBC2-compliant wrappers public in order to allow access to vendor extensions. - Cleaned up logging of profiler events, moved code to dump a profiler event as a string to com.mysql.jdbc.log.LogUtils so that third parties can use it. - DatabaseMetaData.supportsMultipleOpenResults() now returns true. The driver has supported this for some time, DBMD just missed that fact. - Fixed BUG#10310 - Driver doesn't support {?=CALL(...)} for calling stored functions. This involved adding support for function retrieval to DatabaseMetaData.getProcedures() and getProcedureColumns() as well. - Fixed BUG#10485, SQLException thrown when retrieving YEAR(2) with ResultSet.getString(). The driver will now always treat YEAR types as java.sql.Dates and return the correct values for getString(). Alternatively, the "yearIsDateType" connection property can be set to "false" and the values will be treated as SHORTs. - The datatype returned for TINYINT(1) columns when "tinyInt1isBit=true" (the default) can be switched between Types.BOOLEAN and Types.BIT using the new configuration property "transformedBitIsBoolean", which defaults to "false". If set to "false" (the default), DatabaseMetaData.getColumns() and ResultSetMetaData.getColumnType() will return Types.BOOLEAN for TINYINT(1) columns. If "true", Types.BOOLEAN will be returned instead. Irregardless of this configuration property, if "tinyInt1isBit" is enabled, columns with the type TINYINT(1) will be returned as java.lang.Boolean instances from ResultSet.getObject(..), and ResultSetMetaData.getColumnClassName() will return "java.lang.Boolean". - Fixed BUG#10496 - SQLException is thrown when using property "characterSetResults" with cp932 or eucjpms. - Reorganized directory layout, sources now in "src" folder, don't pollute parent directory when building, now output goes to "./build", distribution goes to "./dist". - Added support/bug hunting feature that generates .sql test scripts to STDERR when "autoGenerateTestcaseScript" is set to "true". - Fixed BUG#10850 - 0-length streams not sent to server when using server-side prepared statements. - Setting "cachePrepStmts=true" now causes the Connection to also cache the check the driver performs to determine if a prepared statement can be server-side or not, as well as caches server-side prepared statements for the lifetime of a connection. As before, the "prepStmtCacheSize" parameter controls the size of these caches. - Try to handle OutOfMemoryErrors more gracefully. Although not much can be done, they will in most cases close the connection they happened on so that further operations don't run into a connection in some unknown state. When an OOM has happened, any further operations on the connection will fail with a "Connection closed" exception that will also list the OOM exception as the reason for the implicit connection close event. - Don't send COM_RESET_STMT for each execution of a server-side prepared statement if it isn't required. - Driver detects if you're running MySQL-5.0.7 or later, and does not scan for "LIMIT ?[,?]" in statements being prepared, as the server supports those types of queries now. - Fixed BUG#11115, Varbinary data corrupted when using server-side prepared statements and ResultSet.getBytes(). - Connection.setCatalog() is now aware of the "useLocalSessionState" configuration property, which when set to true will prevent the driver from sending "USE ..." to the server if the requested catalog is the same as the current catalog. - Added the following configuration bundles, use one or many via the "useConfigs" configuration property: * maxPerformance -- maximum performance without being reckless * solarisMaxPerformance -- maximum performance for Solaris, avoids syscalls where it can * 3-0-Compat -- Compatibility with Connector/J 3.0.x functionality - Added "maintainTimeStats" configuration property (defaults to "true"), which tells the driver whether or not to keep track of the last query time and the last successful packet sent to the server's time. If set to false, removes two syscalls per query. - Fixed BUG#11259, autoReconnect ping causes exception on connection startup. - Fixed BUG#11360 Connector/J dumping query into SQLException twice - Fixed PreparedStatement.setClob() not accepting null as a parameter. - Fixed BUG#11411 - Production package doesn't include JBoss integration classes. - Removed nonsensical "costly type conversion" warnings when using usage advisor. 04-14-05 - Version 3.1.8-stable - Fixed DatabaseMetaData.getTables() returning views when they were not asked for as one of the requested table types. - Added support for new precision-math DECIMAL type in MySQL >= 5.0.3. - Fixed ResultSet.getTime() on a NULL value for server-side prepared statements throws NPE. - Made Connection.ping() a public method. - Fixed Bug#8868, DATE_FORMAT() queries returned as BLOBs from getObject(). - ServerPreparedStatements now correctly 'stream' BLOB/CLOB data to the server. You can configure the threshold chunk size using the JDBC URL property 'blobSendChunkSize' (the default is one megabyte). - BlobFromLocator now uses correct identifier quoting when generating prepared statements. - Server-side session variables can be preset at connection time by passing them as a comma-delimited list for the connection property 'sessionVariables'. - Fixed regression in ping() for users using autoReconnect=true. - Fixed BUG#9040 - PreparedStatement.addBatch() doesn't work with server-side prepared statements and streaming BINARY data. - Fixed BUG#8800 - DBMD.supportsMixedCase*Identifiers() returns wrong value on servers running on case-sensitive filesystems. - Fixed BUG#9206, can not use 'UTF-8' for characterSetResults configuration property. - Fixed BUG#9236, a continuation of BUG#8868, where functions used in queries that should return non-string types when resolved by temporary tables suddenly become opaque binary strings (work-around for server limitation). Also fixed fields with type of CHAR(n) CHARACTER SET BINARY to return correct/matching classes for RSMD.getColumnClassName() and ResultSet.getObject(). - Fixed BUG#8792 - DBMD.supportsResultSetConcurrency() not returning true for forward-only/read-only result sets (we obviously support this). - Fixed BUG#8803, 'DATA_TYPE' column from DBMD.getBestRowIdentifier() causes ArrayIndexOutOfBoundsException when accessed (and in fact, didn't return any value). - Check for empty strings ('') when converting char/varchar column data to numbers, throw exception if 'emptyStringsConvertToZero' configuration property is set to 'false' (for backwards-compatibility with 3.0, it is now set to 'true' by default, but will most likely default to 'false' in 3.2). - Fixed BUG#9320 - PreparedStatement.getMetaData() inserts blank row in database under certain conditions when not using server-side prepared statements. - Connection.canHandleAsPreparedStatement() now makes 'best effort' to distinguish LIMIT clauses with placeholders in them from ones without in order to have fewer false positives when generating work-arounds for statements the server cannot currently handle as server-side prepared statements. - Fixed build.xml to not compile log4j logging if log4j not available. - Added support for the c3p0 connection pool's (http://c3p0.sf.net/) validation/connection checker interface which uses the lightweight 'COM_PING' call to the server if available. To use it, configure your c3p0 connection pool's 'connectionTesterClassName' property to use 'com.mysql.jdbc.integration.c3p0.MysqlConnectionTester'. - Better detection of LIMIT inside/outside of quoted strings so that the driver can more correctly determine whether a prepared statement can be prepared on the server or not. - Fixed BUG#9319 - Stored procedures with same name in different databases confuse the driver when it tries to determine parameter counts/types. - Added finalizers to ResultSet and Statement implementations to be JDBC spec-compliant, which requires that if not explicitly closed, these resources should be closed upon garbage collection. - Fixed BUG#9682 - Stored procedures with DECIMAL parameters with storage specifications that contained "," in them would fail. - PreparedStatement.setObject(int, Object, int type, int scale) now uses scale value for BigDecimal instances. - Fixed BUG#9704 - Statement.getMoreResults() could throw NPE when existing result set was .close()d. - The performance metrics feature now gathers information about number of tables referenced in a SELECT. - The logging system is now automatically configured. If the value has been set by the user, via the URL property "logger" or the system property "com.mysql.jdbc.logger", then use that, otherwise, autodetect it using the following steps: Log4j, if it's available, Then JDK1.4 logging, Then fallback to our STDERR logging. - Fixed BUG#9778, DBMD.getTables() shouldn't return tables if views are asked for, even if the database version doesn't support views. - Fixed driver not returning 'true' for '-1' when ResultSet.getBoolean() was called on result sets returned from server-side prepared statements. - Added a Manifest.MF file with implementation information to the .jar file. - More tests in Field.isOpaqueBinary() to distinguish opaque binary (i.e. fields with type CHAR(n) and CHARACTER SET BINARY) from output of various scalar and aggregate functions that return strings. - Fixed BUG#9917 - Should accept null for catalog (meaning use current) in DBMD methods, even though it's not JDBC-compliant for legacy's sake. Disable by setting connection property "nullCatalogMeansCurrent" to "false" (which will be the default value in C/J 3.2.x). - Fixed BUG#9769 - Should accept null for name patterns in DBMD (meaning "%"), even though it isn't JDBC compliant, for legacy's sake. Disable by setting connection property "nullNamePatternMatchesAll" to "false" (which will be the default value in C/J 3.2.x). 02-18-05 - Version 3.1.7-stable - Fixed BUG#7686, Timestamp key column data needed "_binary'" stripped for UpdatableResultSet.refreshRow(). - Fixed BUG#7715 - Timestamps converted incorrectly to strings with Server-side prepared statements and updatable result sets. - Detect new sql_mode variable in string form (it used to be integer) and adjust quoting method for strings appropriately. - Added 'holdResultsOpenOverStatementClose' property (default is false), that keeps result sets open over statement.close() or new execution on same statement (suggested by Kevin Burton). - Fixed BUG#7952 -- Infinite recursion when 'falling back' to master in failover configuration. - Disable multi-statements (if enabled) for MySQL-4.1 versions prior to version 4.1.10 if the query cache is enabled, as the server returns wrong results in this configuration. - Fixed duplicated code in configureClientCharset() that prevented useOldUTF8Behavior=true from working properly. - Removed 'dontUnpackBinaryResults' functionality, the driver now always stores results from server-side prepared statements as-is from the server and unpacks them on demand. - Fixed BUG#8096 where emulated locators corrupt binary data when using server-side prepared statements. - Fixed synchronization issue with ServerPreparedStatement.serverPrepare() that could cause deadlocks/crashes if connection was shared between threads. - By default, the driver now scans SQL you are preparing via all variants of Connection.prepareStatement() to determine if it is a supported type of statement to prepare on the server side, and if it is not supported by the server, it instead prepares it as a client-side emulated prepared statement (BUG#4718). You can disable this by passing 'emulateUnsupportedPstmts=false' in your JDBC URL. - Remove _binary introducer from parameters used as in/out parameters in CallableStatement. - Always return byte[]s for output parameters registered as *BINARY. - Send correct value for 'boolean' "true" to server for PreparedStatement.setObject(n, "true", Types.BIT). - Fixed bug with Connection not caching statements from prepareStatement() when the statement wasn't a server-side prepared statement. - Choose correct 'direction' to apply time adjustments when both client and server are in GMT timezone when using ResultSet.get(..., cal) and PreparedStatement.set(...., cal). - Added 'dontTrackOpenResources' option (default is false, to be JDBC compliant), which helps with memory use for non-well-behaved apps (i.e applications which don't close Statements when they should). - Fixed BUG#8428 - ResultSet.getString() doesn't maintain format stored on server, bug fix only enabled when 'noDatetimeStringSync' property is set to 'true' (the default is 'false'). - Fixed NPE in ResultSet.realClose() when using usage advisor and result set was already closed. - Fixed BUG#8487 - PreparedStatements not creating streaming result sets. - Don't pass NULL to String.valueOf() in ResultSet.getNativeConvertToString(), as it stringifies it (i.e. returns "null"), which is not correct for the method in question. - Fixed BUG#8484 - ResultSet.getBigDecimal() throws exception when rounding would need to occur to set scale. The driver now chooses a rounding mode of 'half up' if non-rounding BigDecimal.setScale() fails. - Added 'useLocalSessionState' configuration property, when set to 'true' the JDBC driver trusts that the application is well-behaved and only sets autocommit and transaction isolation levels using the methods provided on java.sql.Connection, and therefore can manipulate these values in many cases without incurring round-trips to the database server. - Added enableStreamingResults() to Statement for connection pool implementations that check Statement.setFetchSize() for specification-compliant values. Call Statement.setFetchSize(>=0) to disable the streaming results for that statement. - Added support for BIT type in MySQL-5.0.3. The driver will treat BIT(1-8) as the JDBC standard BIT type (which maps to java.lang.Boolean), as the server does not currently send enough information to determine the size of a bitfield when < 9 bits are declared. BIT(>9) will be treated as VARBINARY, and will return byte[] when getObject() is called. 12-23-04 - Version 3.1.6-stable - Fixed hang on SocketInputStream.read() with Statement.setMaxRows() and multiple result sets when driver has to truncate result set directly, rather than tacking a 'LIMIT n' on the end of it. - Fixed BUG#7026 - DBMD.getProcedures() doesn't respect catalog parameter. - Respect bytes-per-character for RSMD.getPrecision(). 12-02-04 - Version 3.1.5-gamma - Fix comparisons made between string constants and dynamic strings that are either toUpperCase()d or toLowerCase()d to use Locale.ENGLISH, as some locales 'override' case rules for English. Also use StringUtils.indexOfIgnoreCase() instead of .toUpperCase().indexOf(), avoids creating a very short-lived transient String instance. - Fixed BUG#5235 - Server-side prepared statements did not honor 'zeroDateTimeBehavior' property, and would cause class-cast exceptions when using ResultSet.getObject(), as the all-zero string was always returned. - Fixed batched updates with server prepared statements weren't looking if the types had changed for a given batched set of parameters compared to the previous set, causing the server to return the error 'Wrong arguments to mysql_stmt_execute()'. - Handle case when string representation of timestamp contains trailing '.' with no numbers following it. - Fixed BUG#5706 - Inefficient detection of pre-existing string instances in ResultSet.getNativeString(). - Don't throw exceptions for Connection.releaseSavepoint(). - Use a per-session Calendar instance by default when decoding dates from ServerPreparedStatements (set to old, less performant behavior by setting property 'dynamicCalendars=true'). - Added experimental configuration property 'dontUnpackBinaryResults', which delays unpacking binary result set values until they're asked for, and only creates object instances for non-numerical values (it is set to 'false' by default). For some usecase/jvm combinations, this is friendlier on the garbage collector. - Fixed BUG#5729 - UNSIGNED BIGINT unpacked incorrectly from server-side prepared statement result sets. - Fixed BUG#6225 - ServerSidePreparedStatement allocating short-lived objects un-necessarily. - Removed un-wanted new Throwable() in ResultSet constructor due to bad merge (caused a new object instance that was never used for every result set created) - Found while profiling for BUG#6359. - Fixed too-early creation of StringBuffer in EscapeProcessor.escapeSQL(), also return String when escaping not needed (to avoid unnecssary object allocations). Found while profiling for BUG#6359. - Use null-safe-equals for key comparisons in updatable result sets. - Fixed BUG#6537, SUM() on Decimal with server-side prepared statement ignores scale if zero-padding is needed (this ends up being due to conversion to DOUBLE by server, which when converted to a string to parse into BigDecimal, loses all 'padding' zeros). - Use DatabaseMetaData.getIdentifierQuoteString() when building DBMD queries. - Use 1MB packet for sending file for LOAD DATA LOCAL INFILE if that is < 'max_allowed_packet' on server. - Fixed BUG#6399, ResultSetMetaData.getColumnDisplaySize() returns incorrect values for multibyte charsets. - Make auto-deserialization of java.lang.Objects stored in BLOBs configurable via 'autoDeserialize' property (defaults to 'false'). - Re-work Field.isOpaqueBinary() to detect 'CHAR(n) CHARACTER SET BINARY' to support fixed-length binary fields for ResultSet.getObject(). - Use our own implementation of buffered input streams to get around blocking behavior of java.io.BufferedInputStream. Disable this with 'useReadAheadInput=false'. - Fixed BUG#6348, failing to connect to the server when one of the addresses for the given host name is IPV6 (which the server does not yet bind on). The driver now loops through _all_ IP addresses for a given host, and stops on the first one that accepts() a socket.connect(). 09-04-04 - Version 3.1.4-beta - Fixed BUG#4510 - connector/j 3.1.3 beta does not handle integers correctly (caused by changes to support unsigned reads in Buffer.readInt() -> Buffer.readShort()). - Added support in DatabaseMetaData.getTables() and getTableTypes() for VIEWs which are now available in MySQL server version 5.0.x. - Fixed BUG#4642 -- ServerPreparedStatement.execute*() sometimes threw ArrayIndexOutOfBoundsException when unpacking field metadata. - Optimized integer number parsing, enable 'old' slower integer parsing using JDK classes via 'useFastIntParsing=false' property. - Added 'useOnlyServerErrorMessages' property, which causes message text in exceptions generated by the server to only contain the text sent by the server (as opposed to the SQLState's 'standard' description, followed by the server's error message). This property is set to 'true' by default. - Fixed BUG#4689 - ResultSet.wasNull() does not work for primatives if a previous null was returned. - Track packet sequence numbers if enablePacketDebug=true, and throw an exception if packets received out-of-order. - Fixed BUG#4482, ResultSet.getObject() returns wrong type for strings when using prepared statements. - Calling MysqlPooledConnection.close() twice (even though an application error), caused NPE. Fixed. - Fixed BUG#5012 -- ServerPreparedStatements dealing with return of DECIMAL type don't work. - Fixed BUG#5032 -- ResultSet.getObject() doesn't return type Boolean for pseudo-bit types from prepared statements on 4.1.x (shortcut for avoiding extra type conversion when using binary-encoded result sets obscurred test in getObject() for 'pseudo' bit type) - You can now use URLs in 'LOAD DATA LOCAL INFILE' statements, and the driver will use Java's built-in handlers for retreiving the data and sending it to the server. This feature is not enabled by default, you must set the 'allowUrlInLocalInfile' connection property to 'true'. - The driver is more strict about truncation of numerics on ResultSet.get*(), and will throw a SQLException when truncation is detected. You can disable this by setting 'jdbcCompliantTruncation' to false (it is enabled by default, as this functionality is required for JDBC compliance). - Added three ways to deal with all-zero datetimes when reading them from a ResultSet, 'exception' (the default), which throws a SQLException with a SQLState of 'S1009', 'convertToNull', which returns NULL instead of the date, and 'round', which rounds the date to the nearest closest value which is '0001-01-01'. - Fixed ServerPreparedStatement to read prepared statement metadata off the wire, even though it's currently a placeholder instead of using MysqlIO.clearInputStream() which didn't work at various times because data wasn't available to read from the server yet. This fixes sporadic errors users were having with ServerPreparedStatements throwing ArrayIndexOutOfBoundExceptions. - Use com.mysql.jdbc.Message's classloader when loading resource bundle, should fix sporadic issues when the caller's classloader can't locate the resource bundle. 07-07-04 - Version 3.1.3-beta - Mangle output parameter names for CallableStatements so they will not clash with user variable names. - Added support for INOUT parameters in CallableStatements. - Fix for BUG#4119, null bitmask sent for server-side prepared statements was incorrect. - Use SQL Standard SQL states by default, unless 'useSqlStateCodes' property is set to 'false'. - Added packet debuging code (see the 'enablePacketDebug' property documentation). - Added constants for MySQL error numbers (publicly-accessible, see com.mysql.jdbc.MysqlErrorNumbers), and the ability to generate the mappings of vendor error codes to SQLStates that the driver uses (for documentation purposes). - Externalized more messages (on-going effort). - Fix for BUG#4311 - Error in retrieval of mediumint column with prepared statements and binary protocol. - Support new timezone variables in MySQL-4.1.3 when 'useTimezone=true' - Support for unsigned numerics as return types from prepared statements. This also causes a change in ResultSet.getObject() for the 'bigint unsigned' type, which used to return BigDecimal instances, it now returns instances of java.lang.BigInteger. 06-09-04 - Version 3.1.2-alpha - Fixed stored procedure parameter parsing info when size was specified for a parameter (i.e. char(), varchar()). - Enabled callable statement caching via 'cacheCallableStmts' property. - Fixed case when no output parameters specified for a stored procedure caused a bogus query to be issued to retrieve out parameters, leading to a syntax error from the server. - Fixed case when no parameters could cause a NullPointerException in CallableStatement.setOutputParameters(). - Removed wrapping of exceptions in MysqlIO.changeUser(). - Fixed sending of split packets for large queries, enabled nio ability to send large packets as well. - Added .toString() functionality to ServerPreparedStatement, which should help if you're trying to debug a query that is a prepared statement (it shows SQL as the server would process). - Added 'gatherPerformanceMetrics' property, along with properties to control when/where this info gets logged (see docs for more info). - ServerPreparedStatements weren't actually de-allocating server-side resources when .close() was called. - Added 'logSlowQueries' property, along with property 'slowQueriesThresholdMillis' to control when a query should be considered 'slow'. - Correctly map output parameters to position given in prepareCall() vs. order implied during registerOutParameter() - fixes BUG#3146. - Correctly detect initial character set for servers >= 4.1.0 - Cleaned up detection of server properties. - Support placeholder for parameter metadata for server >= 4.1.2 - Fix for BUG#3539 getProcedures() does not return any procedures in result set - Fix for BUG#3540 getProcedureColumns() doesn't work with wildcards for procedure name - Fixed BUG#3520 -- DBMD.getSQLStateType() returns incorrect value. - Added 'connectionCollation' property to cause driver to issue 'set collation_connection=...' query on connection init if default collation for given charset is not appropriate. - Fixed DatabaseMetaData.getProcedures() when run on MySQL-5.0.0 (output of 'show procedure status' changed between 5.0.1 and 5.0.0. - Fixed BUG#3804 -- getWarnings() returns SQLWarning instead of DataTruncation - Don't enable server-side prepared statements for server version 5.0.0 or 5.0.1, as they aren't compatible with the '4.1.2+' style that the driver uses (the driver expects information to come back that isn't there, so it hangs). 02-14-04 - Version 3.1.1-alpha - Fixed bug with UpdatableResultSets not using client-side prepared statements. - Fixed character encoding issues when converting bytes to ASCII when MySQL doesn't provide the character set, and the JVM is set to a multibyte encoding (usually affecting retrieval of numeric values). - Unpack 'unknown' data types from server prepared statements as Strings. - Implemented long data (Blobs, Clobs, InputStreams, Readers) for server prepared statements. - Implemented Statement.getWarnings() for MySQL-4.1 and newer (using 'SHOW WARNINGS'). - Default result set type changed to TYPE_FORWARD_ONLY (JDBC compliance). - Centralized setting of result set type and concurrency. - Re-factored how connection properties are set and exposed as DriverPropertyInfo as well as Connection and DataSource properties. - Support for NIO. Use 'useNIO=true' on platforms that support NIO. - Support for SAVEPOINTs (MySQL >= 4.0.14 or 4.1.1). - Support for mysql_change_user()...See the changeUser() method in com.mysql.jdbc.Connection. - Reduced number of methods called in average query to be more efficient. - Prepared Statements will be re-prepared on auto-reconnect. Any errors encountered are postponed until first attempt to re-execute the re-prepared statement. - Ensure that warnings are cleared before executing queries on prepared statements, as-per JDBC spec (now that we support warnings). - Support 'old' profileSql capitalization in ConnectionProperties. This property is deprecated, you should use 'profileSQL' if possible. - Optimized Buffer.readLenByteArray() to return shared empty byte array when length is 0. - Allow contents of PreparedStatement.setBlob() to be retained between calls to .execute*(). - Deal with 0-length tokens in EscapeProcessor (caused by callable statement escape syntax). - Check for closed connection on delete/update/insert row operations in UpdatableResultSet. - Fix support for table aliases when checking for all primary keys in UpdatableResultSet. - Removed useFastDates connection property. - Correctly initialize datasource properties from JNDI Refs, including explicitly specified URLs. - DatabaseMetaData now reports supportsStoredProcedures() for MySQL versions >= 5.0.0 - Fixed stack overflow in Connection.prepareCall() (bad merge). - Fixed IllegalAccessError to Calendar.getTimeInMillis() in DateTimeValue (for JDK < 1.4). - Fix for BUG#1673, where DatabaseMetaData.getColumns() is not returning correct column ordinal info for non '%' column name patterns. - Merged fix of datatype mapping from MySQL type 'FLOAT' to java.sql.Types.REAL from 3.0 branch. - Detect collation of column for RSMD.isCaseSensitive(). - Fixed sending of queries > 16M. - Added named and indexed input/output parameter support to CallableStatement. MySQL-5.0.x or newer. - Fixed NullPointerException in ServerPreparedStatement.setTimestamp(), as well as year and month descrepencies in ServerPreparedStatement.setTimestamp(), setDate(). - Added ability to have multiple database/JVM targets for compliance and regression/unit tests in build.xml. - Fixed NPE and year/month bad conversions when accessing some datetime functionality in ServerPreparedStatements and their resultant result sets. - Display where/why a connection was implicitly closed (to aid debugging). - CommunicationsException implemented, that tries to determine why communications was lost with a server, and displays possible reasons when .getMessage() is called. - Fixed BUG#2359, NULL values for numeric types in binary encoded result sets causing NullPointerExceptions. - Implemented Connection.prepareCall(), and DatabaseMetaData. getProcedures() and getProcedureColumns(). - Reset 'long binary' parameters in ServerPreparedStatement when clearParameters() is called, by sending COM_RESET_STMT to the server. - Merged prepared statement caching, and .getMetaData() support from 3.0 branch. - Fixed off-by-1900 error in some cases for years in TimeUtil.fastDate/TimeCreate() when unpacking results from server-side prepared statements. - Fixed BUG#2502 -- charset conversion issue in getTables(). - Implemented multiple result sets returned from a statement or stored procedure. - Fixed BUG#2606 -- Server side prepared statements not returning datatype 'YEAR' correctly. - Enabled streaming of result sets from server-side prepared statements. - Fixed BUG#2623 -- Class-cast exception when using scrolling result sets and server-side prepared statements. - Merged unbuffered input code from 3.0. - Fixed ConnectionProperties that weren't properly exposed via accessors, cleaned up ConnectionProperties code. - Fixed BUG#2671, NULL fields not being encoded correctly in all cases in server side prepared statements. - Fixed rare buffer underflow when writing numbers into buffers for sending prepared statement execution requests. - Use DocBook version of docs for shipped versions of drivers. 02-18-03 - Version 3.1.0-alpha - Added 'requireSSL' property. - Added 'useServerPrepStmts' property (default 'false'). The driver will use server-side prepared statements when the server version supports them (4.1 and newer) when this property is set to 'true'. It is currently set to 'false' by default until all bind/fetch functionality has been implemented. Currently only DML prepared statements are implemented for 4.1 server-side prepared statements. - Track open Statements, close all when Connection.close() is called (JDBC compliance). 06-22-05 - Version 3.0.17-ga - Fixed BUG#5874, Timestamp/Time conversion goes in the wrong 'direction' when useTimeZone='true' and server timezone differs from client timezone. - Fixed BUG#7081, DatabaseMetaData.getIndexInfo() ignoring 'unique' parameter. - Support new protocol type 'MYSQL_TYPE_VARCHAR'. - Added 'useOldUTF8Behavoior' configuration property, which causes JDBC driver to act like it did with MySQL-4.0.x and earlier when the character encoding is 'utf-8' when connected to MySQL-4.1 or newer. - Fixed BUG#7316 - Statements created from a pooled connection were returning physical connection instead of logical connection when getConnection() was called. - Fixed BUG#7033 - PreparedStatements don't encode Big5 (and other multibyte) character sets correctly in static SQL strings. - Fixed BUG#6966, connections starting up failed-over (due to down master) never retry master. - Fixed BUG#7061, PreparedStatement.fixDecimalExponent() adding extra '+', making number unparseable by MySQL server. - Fixed BUG#7686, Timestamp key column data needed "_binary'" stripped for UpdatableResultSet.refreshRow(). - Backported SQLState codes mapping from Connector/J 3.1, enable with 'useSqlStateCodes=true' as a connection property, it defaults to 'false' in this release, so that we don't break legacy applications (it defaults to 'true' starting with Connector/J 3.1). - Fixed BUG#7601, PreparedStatement.fixDecimalExponent() adding extra '+', making number unparseable by MySQL server. - Escape sequence {fn convert(..., type)} now supports ODBC-style types that are prepended by 'SQL_'. - Fixed duplicated code in configureClientCharset() that prevented useOldUTF8Behavior=true from working properly. - Handle streaming result sets with > 2 billion rows properly by fixing wraparound of row number counter. - Fixed BUG#7607 - MS932, SHIFT_JIS and Windows_31J not recog. as aliases for sjis. - Fixed BUG#6549 (while fixing #7607), adding 'CP943' to aliases for sjis. - Fixed BUG#8064, which requires hex escaping of binary data when using multibyte charsets with prepared statements. - Fixed BUG#8812, NON_UNIQUE column from DBMD.getIndexInfo() returned inverted value. - Workaround for server BUG#9098 - default values of CURRENT_* for DATE/TIME/TIMESTAMP/TIMESTAMP columns can't be distinguished from 'string' values, so UpdatableResultSet.moveToInsertRow() generates bad SQL for inserting default values. - Fixed BUG#8629 - 'EUCKR' charset is sent as 'SET NAMES euc_kr' which MySQL-4.1 and newer doesn't understand. - DatabaseMetaData.supportsSelectForUpdate() returns correct value based on server version. - Use hex escapes for PreparedStatement.setBytes() for double-byte charsets including 'aliases' Windows-31J, CP934, MS932. - Added support for the "EUC_JP_Solaris" character encoding, which maps to a MySQL encoding of "eucjpms" (backported from 3.1 branch). This only works on servers that support eucjpms, namely 5.0.3 or later. 11-15-04 - Version 3.0.16-ga - Re-issue character set configuration commands when re-using pooled connections and/or Connection.changeUser() when connected to MySQL-4.1 or newer. - Fixed ResultSetMetaData.isReadOnly() to detect non-writable columns when connected to MySQL-4.1 or newer, based on existence of 'original' table and column names. - Fixed BUG#5664, ResultSet.updateByte() when on insert row throws ArrayOutOfBoundsException. - Fixed DatabaseMetaData.getTypes() returning incorrect (i.e. non-negative) scale for the 'NUMERIC' type. - Fixed BUG#6198, off-by-one bug in Buffer.readString(string). - Made TINYINT(1) -> BIT/Boolean conversion configurable via 'tinyInt1isBit' property (default 'true' to be JDBC compliant out of the box). - Only set 'character_set_results' during connection establishment if server version >= 4.1.1. - Fixed regression where useUnbufferedInput was defaulting to 'false'. - Fixed BUG#6231, ResultSet.getTimestamp() on a column with TIME in it fails. 09-04-04 - Version 3.0.15-ga - Fixed BUG#4010 - StringUtils.escapeEasternUnicodeByteStream is still broken for GBK - Fixed BUG#4334 - Failover for autoReconnect not using port #'s for any hosts, and not retrying all hosts. (WARN: This required a change to the SocketFactory connect() method signature, which is now public Socket connect(String host, int portNumber, Properties props), therefore any third-party socket factories will have to be changed to support this signature. - Logical connections created by MysqlConnectionPoolDataSource will now issue a rollback() when they are closed and sent back to the pool. If your application server/connection pool already does this for you, you can set the 'rollbackOnPooledClose' property to false to avoid the overhead of an extra rollback(). - Removed redundant calls to checkRowPos() in ResultSet. - Fixed BUG#4742, 'DOUBLE' mapped twice in DBMD.getTypeInfo(). - Added FLOSS license exemption. - Fixed BUG#4808, calling .close() twice on a PooledConnection causes NPE. - Fixed BUG#4138 and BUG#4860, DBMD.getColumns() returns incorrect JDBC type for unsigned columns. This affects type mappings for all numeric types in the RSMD.getColumnType() and RSMD.getColumnTypeNames() methods as well, to ensure that 'like' types from DBMD.getColumns() match up with what RSMD.getColumnType() and getColumnTypeNames() return. - 'Production' - 'GA' in naming scheme of distributions. - Fix for BUG#4880, RSMD.getPrecision() returning 0 for non-numeric types (should return max length in chars for non-binary types, max length in bytes for binary types). This fix also fixes mapping of RSMD.getColumnType() and RSMD.getColumnTypeName() for the BLOB types based on the length sent from the server (the server doesn't distinguish between TINYBLOB, BLOB, MEDIUMBLOB or LONGBLOB at the network protocol level). - Fixed BUG#5022 - ResultSet should release Field[] instance in .close(). - Fixed BUG#5069 -- ResultSet.getMetaData() should not return incorrectly-initialized metadata if the result set has been closed, but should instead throw a SQLException. Also fixed for getRow() and getWarnings() and traversal methods by calling checkClosed() before operating on instance-level fields that are nullified during .close(). - Parse new timezone variables from 4.1.x servers. - Use _binary introducer for PreparedStatement.setBytes() and set*Stream() when connected to MySQL-4.1.x or newer to avoid misinterpretation during character conversion. 05-28-04 - Version 3.0.14-production - Fixed URL parsing error 05-27-04 - Version 3.0.13-production - Fixed BUG#3848 - Using a MySQLDatasource without server name fails - Fixed BUG#3920 - "No Database Selected" when using MysqlConnectionPoolDataSource. - Fixed BUG#3873 - PreparedStatement.getGeneratedKeys() method returns only 1 result for batched insertions 05-18-04 - Version 3.0.12-production - Add unsigned attribute to DatabaseMetaData.getColumns() output in the TYPE_NAME column. - Added 'failOverReadOnly' property, to allow end-user to configure state of connection (read-only/writable) when failed over. - Backported 'change user' and 'reset server state' functionality from 3.1 branch, to allow clients of MysqlConnectionPoolDataSource to reset server state on getConnection() on a pooled connection. - Don't escape SJIS/GBK/BIG5 when using MySQL-4.1 or newer. - Allow 'url' parameter for MysqlDataSource and MysqlConnectionPool DataSource so that passing of other properties is possible from inside appservers. - Map duplicate key and foreign key errors to SQLState of '23000'. - Backport documentation tooling from 3.1 branch. - Return creating statement for ResultSets created by getGeneratedKeys() (BUG#2957) - Allow java.util.Date to be sent in as parameter to PreparedStatement.setObject(), converting it to a Timestamp to maintain full precision (BUG#3103). - Don't truncate BLOBs/CLOBs when using setBytes() and/or setBinary/CharacterStream() (BUG#2670). - Dynamically configure character set mappings for field-level character sets on MySQL-4.1.0 and newer using 'SHOW COLLATION' when connecting. - Map 'binary' character set to 'US-ASCII' to support DATETIME charset recognition for servers >= 4.1.2 - Use 'SET character_set_results" during initialization to allow any charset to be returned to the driver for result sets. - Use charsetnr returned during connect to encode queries before issuing 'SET NAMES' on MySQL >= 4.1.0. - Add helper methods to ResultSetMetaData (getColumnCharacterEncoding() and getColumnCharacterSet()) to allow end-users to see what charset the driver thinks it should be using for the column. - Only set character_set_results for MySQL >= 4.1.0. - Fixed BUG#3511, StringUtils.escapeSJISByteStream() not covering all eastern double-byte charsets correctly. - Renamed StringUtils.escapeSJISByteStream() to more appropriate escapeEasternUnicodeByteStream(). - Fixed BUG#3554 - Not specifying database in URL caused MalformedURL exception. - Auto-convert MySQL encoding names to Java encoding names if used for characterEncoding property. - Added encoding names that are recognized on some JVMs to fix case where they were reverse-mapped to MySQL encoding names incorrectly. - Use junit.textui.TestRunner for all unit tests (to allow them to be run from the command line outside of Ant or Eclipse). - Fixed BUG#3557 - UpdatableResultSet not picking up default values for moveToInsertRow(). - Fixed BUG#3570 - inconsistent reporting of column type. The server still doesn't return all types for *BLOBs *TEXT correctly, so the driver won't return those correctly. - Fixed BUG#3520 -- DBMD.getSQLStateType() returns incorrect value. - Fixed regression in PreparedStatement.setString() and eastern character encodings. - Made StringRegressionTest 4.1-unicode aware. 02-19-04 - Version 3.0.11-stable - Trigger a 'SET NAMES utf8' when encoding is forced to 'utf8' _or_ 'utf-8' via the 'characterEncoding' property. Previously, only the Java-style encoding name of 'utf-8' would trigger this. - AutoReconnect time was growing faster than exponentially (BUG#2447). - Fixed failover always going to last host in list (BUG#2578) - Added 'useUnbufferedInput' parameter, and now use it by default (due to JVM issue http://developer.java.sun.com/developer/bugParade/bugs/4401235.html) - Detect 'on/off' or '1','2','3' form of lower_case_table_names on server. - Return 'java.lang.Integer' for TINYINT and SMALLINT types from ResultSetMetaData.getColumnClassName() (fix for BUG#2852). - Return 'java.lang.Double' for FLOAT type from ResultSetMetaData. getColumnClassName() (fix for BUG#2855). - Return '[B' instead of java.lang.Object for BINARY, VARBINARY and LONGVARBINARY types from ResultSetMetaData.getColumnClassName() (JDBC compliance). 01-13-04 - Version 3.0.10-stable - Don't count quoted id's when inside a 'string' in PreparedStatement parsing (fix for BUG#1511). - 'Friendlier' exception message for PacketTooLargeException (BUG#1534). - Backported fix for aliased tables and UpdatableResultSets in checkUpdatability() method from 3.1 branch. - Fix for ArrayIndexOutOfBounds exception when using Statement.setMaxRows() (BUG#1695). - Fixed BUG#1576, dealing with large blobs and split packets not being read correctly. - Fixed regression of Statement.getGeneratedKeys() and REPLACE statements. - Fixed BUG#1630, subsequent call to ResultSet.updateFoo() causes NPE if result set is not updatable. - Fix for 4.1.1-style auth with no password. - Fix for BUG#1731, Foreign Keys column sequence is not consistent in DatabaseMetaData.getImported/Exported/CrossReference(). - Fix for BUG#1775 - DatabaseMetaData.getSystemFunction() returning bad function 'VResultsSion'. - Fix for BUG#1592 -- cross-database updatable result sets are not checked for updatability correctly. - DatabaseMetaData.getColumns() should return Types.LONGVARCHAR for MySQL LONGTEXT type. - ResultSet.getObject() on TINYINT and SMALLINT columns should return Java type 'Integer' (BUG#1913) - Added 'alwaysClearStream' connection property, which causes the driver to always empty any remaining data on the input stream before each query. - Added more descriptive error message 'Server Configuration Denies Access to DataSource', as well as retrieval of message from server. - Autoreconnect code didn't set catalog upon reconnect if it had been changed. - Implement ResultSet.updateClob(). - ResultSetMetaData.isCaseSensitive() returned wrong value for CHAR/VARCHAR columns. - Fix for BUG#1933 -- Connection property "maxRows" not honored. - Fix for BUG#1925 -- Statements being created too many times in DBMD.extractForeignKeyFromCreateTable(). - Fix for BUG#1914 -- Support escape sequence {fn convert ... } - Fix for BUG#1958 -- ArrayIndexOutOfBounds when parameter number == number of parameters + 1. - Fix for BUG#2006 -- ResultSet.findColumn() should use first matching column name when there are duplicate column names in SELECT query (JDBC-compliance). - Removed static synchronization bottleneck from PreparedStatement.setTimestamp(). - Removed static synchronization bottleneck from instance factory method of SingleByteCharsetConverter. - Enable caching of the parsing stage of prepared statements via the 'cachePrepStmts', 'prepStmtCacheSize' and 'prepStmtCacheSqlLimit' properties (disabled by default). - Speed up parsing of PreparedStatements, try to use one-pass whenever possible. - Fixed security exception when used in Applets (applets can't read the system property 'file.encoding' which is needed for LOAD DATA LOCAL INFILE). - Use constants for SQLStates. - Map charset 'ko18_ru' to 'ko18r' when connected to MySQL-4.1.0 or newer. - Ensure that Buffer.writeString() saves room for the \0. - Fixed exception 'Unknown character set 'danish' on connect w/ JDK-1.4.0 - Fixed mappings in SQLError to report deadlocks with SQLStates of '41000'. - 'maxRows' property would affect internal statements, so check it for all statement creation internal to the driver, and set to 0 when it is not. 10-07-03 - Version 3.0.9-stable - Faster date handling code in ResultSet and PreparedStatement (no longer uses Date methods that synchronize on static calendars). - Fixed test for end of buffer in Buffer.readString(). - Fixed ResultSet.previous() behavior to move current position to before result set when on first row of result set (bugs.mysql.com BUG#496) - Fixed Statement and PreparedStatement issuing bogus queries when setMaxRows() had been used and a LIMIT clause was present in the query. - Fixed BUG#661 - refreshRow didn't work when primary key values contained values that needed to be escaped (they ended up being doubly-escaped). - Support InnoDB contraint names when extracting foreign key info in DatabaseMetaData BUG#517 and BUG#664 (impl. ideas from Parwinder Sekhon) - Backported 4.1 protocol changes from 3.1 branch (server-side SQL states, new field info, larger client capability flags, connect-with-database, etc). - Fix UpdatableResultSet to return values for getXXX() when on insert row (BUG#675). - The insertRow in an UpdatableResultSet is now loaded with the default column values when moveToInsertRow() is called (BUG#688) - DatabaseMetaData.getColumns() wasn't returning NULL for default values that are specified as NULL. - Change default statement type/concurrency to TYPE_FORWARD_ONLY and CONCUR_READ_ONLY (spec compliance). - Don't try and reset isolation level on reconnect if MySQL doesn't support them. - Don't wrap SQLExceptions in RowDataDynamic. - Don't change timestamp TZ twice if useTimezone==true (BUG#774) - Fixed regression in large split-packet handling (BUG#848). - Better diagnostic error messages in exceptions for 'streaming' result sets. - Issue exception on ResultSet.getXXX() on empty result set (wasn't caught in some cases). - Don't hide messages from exceptions thrown in I/O layers. - Don't fire connection closed events when closing pooled connections, or on PooledConnection.getConnection() with already open connections (BUG#884). - Clip +/- INF (to smallest and largest representative values for the type in MySQL) and NaN (to 0) for setDouble/setFloat(), and issue a warning on the statement when the server does not support +/- INF or NaN. - Fix for BUG#879, double-escaping of '\' when charset is SJIS or GBK and '\' appears in non-escaped input. - When emptying input stream of unused rows for 'streaming' result sets, have the current thread yield() every 100 rows in order to not monopolize CPU time. - Fixed BUG#1099, DatabaseMetaData.getColumns() getting confused about the keyword 'set' in character columns. - Fixed deadlock issue with Statement.setMaxRows(). - Fixed CLOB.truncate(), BUG#1130 - Optimized CLOB.setChracterStream(), BUG#1131 - Made databaseName, portNumber and serverName optional parameters for MysqlDataSourceFactory (BUG#1246) - Fix for BUG#1247 -- ResultSet.get/setString mashing char 127 - Backported auth. changes for 4.1.1 and newer from 3.1 branch. - Added com.mysql.jdbc.util.BaseBugReport to help creation of testcases for bug reports. - Added property to 'clobber' streaming results, by setting the 'clobberStreamingResults' property to 'true' (the default is 'false'). This will cause a 'streaming' ResultSet to be automatically closed, and any oustanding data still streaming from the server to be discarded if another query is executed before all the data has been read from the server. 05-23-03 - Version 3.0.8-stable - Allow bogus URLs in Driver.getPropertyInfo(). - Return list of generated keys when using multi-value INSERTS with Statement.getGeneratedKeys(). - Use JVM charset with filenames and 'LOAD DATA [LOCAL] INFILE' - Fix infinite loop with Connection.cleanup(). - Changed Ant target 'compile-core' to 'compile-driver', and made testsuite compilation a separate target. - Fixed result set not getting set for Statement.executeUpdate(), which affected getGeneratedKeys() and getUpdateCount() in some cases. - Unicode character 0xFFFF in a string would cause the driver to throw an ArrayOutOfBoundsException (Bug #378) - Return correct amount of generated keys when using 'REPLACE' statements. - Fix problem detecting server character set in some cases. - Fix row data decoding error when using _very_ large packets. - Optimized row data decoding. - Issue exception when operating on an already-closed prepared statement. - Fixed SJIS encoding bug, thanks to Naoto Sato. - Optimized usage of EscapeProcessor. - Allow multiple calls to Statement.close() 04-08-03 - Version 3.0.7-stable - Fixed MysqlPooledConnection.close() calling wrong event type. - Fixed StringIndexOutOfBoundsException in PreparedStatement. setClob(). - 4.1 Column Metadata fixes - Remove synchronization from Driver.connect() and Driver.acceptsUrl(). - IOExceptions during a transaction now cause the Connection to be closed. - Fixed missing conversion for 'YEAR' type in ResultSetMetaData. getColumnTypeName(). - Don't pick up indexes that start with 'pri' as primary keys for DBMD.getPrimaryKeys(). - Throw SQLExceptions when trying to do operations on a forcefully closed Connection (i.e. when a communication link failure occurs). - You can now toggle profiling on/off using Connection.setProfileSql(boolean). - Fixed charset issues with database metadata (charset was not getting set correctly). - Updatable ResultSets can now be created for aliased tables/columns when connected to MySQL-4.1 or newer. - Fixed 'LOAD DATA LOCAL INFILE' bug when file > max_allowed_packet. - Fixed escaping of 0x5c ('\') character for GBK and Big5 charsets. - Fixed ResultSet.getTimestamp() when underlying field is of type DATE. - Ensure that packet size from alignPacketSize() does not exceed MAX_ALLOWED_PACKET (JVM bug) - Don't reset Connection.isReadOnly() when autoReconnecting. 02-18-03 - Version 3.0.6-stable - Fixed ResultSetMetaData to return "" when catalog not known. Fixes NullPointerExceptions with Sun's CachedRowSet. - Fixed DBMD.getTypeInfo() and DBMD.getColumns() returning different value for precision in TEXT/BLOB types. - Allow ignoring of warning for 'non transactional tables' during rollback (compliance/usability) by setting 'ignoreNonTxTables' property to 'true'. - Fixed SQLExceptions getting swallowed on initial connect. - Fixed Statement.setMaxRows() to stop sending 'LIMIT' type queries when not needed (performance) - Clean up Statement query/method mismatch tests (i.e. INSERT not allowed with .executeQuery()). - More checks added in ResultSet traversal method to catch when in closed state. - Fixed ResultSetMetaData.isWritable() to return correct value. - Add 'window' of different NULL sorting behavior to DBMD.nullsAreSortedAtStart (4.0.2 to 4.0.10, true, otherwise, no). - Implemented Blob.setBytes(). You still need to pass the resultant Blob back into an updatable ResultSet or PreparedStatement to persist the changes, as MySQL does not support 'locators'. - Backported 4.1 charset field info changes from Connector/J 3.1 01-22-03 - Version 3.0.5-gamma - Fixed Buffer.fastSkipLenString() causing ArrayIndexOutOfBounds exceptions with some queries when unpacking fields. - Implemented an empty TypeMap for Connection.getTypeMap() so that some third-party apps work with MySQL (IBM WebSphere 5.0 Connection pool). - Added missing LONGTEXT type to DBMD.getColumns(). - Retrieve TX_ISOLATION from database for Connection.getTransactionIsolation() when the MySQL version supports it, instead of an instance variable. - Quote table names in DatabaseMetaData.getColumns(), getPrimaryKeys(), getIndexInfo(), getBestRowIdentifier() - Greatly reduce memory required for setBinaryStream() in PreparedStatements. - Fixed ResultSet.isBeforeFirst() for empty result sets. - Added update options for foreign key metadata. 01-06-03 - Version 3.0.4-gamma - Added quoted identifiers to database names for Connection.setCatalog. - Added support for quoted identifiers in PreparedStatement parser. - Streamlined character conversion and byte[] handling in PreparedStatements for setByte(). - Reduce memory footprint of PreparedStatements by sharing outbound packet with MysqlIO. - Added 'strictUpdates' property to allow control of amount of checking for 'correctness' of updatable result sets. Set this to 'false' if you want faster updatable result sets and you know that you create them from SELECTs on tables with primary keys and that you have selected all primary keys in your query. - Added support for 4.0.8-style large packets. - Fixed PreparedStatement.executeBatch() parameter overwriting. 12-17-02 - Version 3.0.3-dev - Changed charsToByte in SingleByteCharConverter to be non-static - Changed SingleByteCharConverter to use lazy initialization of each converter. - Fixed charset handling in Fields.java - Implemented Connection.nativeSQL() - More robust escape tokenizer -- recognize '--' comments, and allow nested escape sequences (see testsuite.EscapeProcessingTest) - DBMD.getImported/ExportedKeys() now handles multiple foreign keys per table. - Fixed ResultSetMetaData.getPrecision() returning incorrect values for some floating point types. - Fixed ResultSetMetaData.getColumnTypeName() returning BLOB for TEXT and TEXT for BLOB types. - Fixed Buffer.isLastDataPacket() for 4.1 and newer servers. - Added CLIENT_LONG_FLAG to be able to get more column flags (isAutoIncrement() being the most important) - Because of above, implemented ResultSetMetaData.isAutoIncrement() to use Field.isAutoIncrement(). - Honor 'lower_case_table_names' when enabled in the server when doing table name comparisons in DatabaseMetaData methods. - Some MySQL-4.1 protocol support (extended field info from selects) - Use non-aliased table/column names and database names to fullly qualify tables and columns in UpdatableResultSet (requires MySQL-4.1 or newer) - Allow user to alter behavior of Statement/ PreparedStatement.executeBatch() via 'continueBatchOnError' property (defaults to 'true'). - Check for connection closed in more Connection methods (createStatement, prepareStatement, setTransactionIsolation, setAutoCommit). - More robust implementation of updatable result sets. Checks that _all_ primary keys of the table have been selected. - 'LOAD DATA LOCAL INFILE ...' now works, if your server is configured to allow it. Can be turned off with the 'allowLoadLocalInfile' property (see the README). - Substitute '?' for unknown character conversions in single-byte character sets instead of '\0'. - NamedPipeSocketFactory now works (only intended for Windows), see README for instructions. 11-08-02 - Version 3.0.2-dev - Fixed issue with updatable result sets and PreparedStatements not working - Fixed ResultSet.setFetchDirection(FETCH_UNKNOWN) - Fixed issue when calling Statement.setFetchSize() when using arbitrary values - Fixed incorrect conversion in ResultSet.getLong() - Implemented ResultSet.updateBlob(). - Removed duplicate code from UpdatableResultSet (it can be inherited from ResultSet, the extra code for each method to handle updatability I thought might someday be necessary has not been needed). - Fixed "UnsupportedEncodingException" thrown when "forcing" a character encoding via properties. - Fixed various non-ASCII character encoding issues. - Added driver property 'useHostsInPrivileges'. Defaults to true. Affects whether or not '@hostname' will be used in DBMD.getColumn/TablePrivileges. - All DBMD result set columns describing schemas now return NULL to be more compliant with the behavior of other JDBC drivers for other databases (MySQL does not support schemas). - Added SSL support. See README for information on how to use it. - Properly restore connection properties when autoReconnecting or failing-over, including autoCommit state, and isolation level. - Use 'SHOW CREATE TABLE' when possible for determining foreign key information for DatabaseMetaData...also allows cascade options for DELETE information to be returned - Escape 0x5c character in strings for the SJIS charset. - Fixed start position off-by-1 error in Clob.getSubString() - Implemented Clob.truncate() - Implemented Clob.setString() - Implemented Clob.setAsciiStream() - Implemented Clob.setCharacterStream() - Added com.mysql.jdbc.MiniAdmin class, which allows you to send 'shutdown' command to MySQL server...Intended to be used when 'embedding' Java and MySQL server together in an end-user application. - Added 'connectTimeout' parameter that allows users of JDK-1.4 and newer to specify a maxium time to wait to establish a connection. - Failover and autoReconnect only work when the connection is in a autoCommit(false) state, in order to stay transaction safe - Added 'queriesBeforeRetryMaster' property that specifies how many queries to issue when failed over before attempting to reconnect to the master (defaults to 50) - Fixed DBMD.supportsResultSetConcurrency() so that it returns true for ResultSet.TYPE_SCROLL_INSENSITIVE and ResultSet.CONCUR_READ_ONLY or ResultSet.CONCUR_UPDATABLE - Fixed ResultSet.isLast() for empty result sets (should return false). - PreparedStatement now honors stream lengths in setBinary/Ascii/Character Stream() unless you set the connection property 'useStreamLengthsInPrepStmts' to 'false'. - Removed some not-needed temporary object creation by using Strings smarter in EscapeProcessor, Connection and DatabaseMetaData classes. 09-21-02 - Version 3.0.1-dev - Fixed ResultSet.getRow() off-by-one bug. - Fixed RowDataStatic.getAt() off-by-one bug. - Added limited Clob functionality (ResultSet.getClob(), PreparedStatemtent.setClob(), PreparedStatement.setObject(Clob). - Added socketTimeout parameter to URL. - Connection.isClosed() no longer "pings" the server. - Connection.close() issues rollback() when getAutoCommit() == false - Added "paranoid" parameter...sanitizes error messages removing "sensitive" information from them (i.e. hostnames, ports, usernames, etc.), as well as clearing "sensitive" data structures when possible. - Fixed ResultSetMetaData.isSigned() for TINYINT and BIGINT. - Charsets now automatically detected. Optimized code for single-byte character set conversion. - Implemented ResultSet.getCharacterStream() - Added "LOCAL TEMPORARY" to table types in DatabaseMetaData.getTableTypes() - Massive code clean-up to follow Java coding conventions (the time had come) 07-31-02 - Version 3.0.0-dev - !!! LICENSE CHANGE !!! The driver is now GPL. If you need non-GPL licenses, please contact me - JDBC-3.0 functionality including Statement/PreparedStatement.getGeneratedKeys() and ResultSet.getURL() - Performance enchancements - driver is now 50-100% faster in most situations, and creates fewer temporary objects - Repackaging...new driver name is "com.mysql.jdbc.Driver", old name still works, though (the driver is now provided by MySQL-AB) - Better checking for closed connections in Statement and PreparedStatement. - Support for streaming (row-by-row) result sets (see README) Thanks to Doron. - Support for large packets (new addition to MySQL-4.0 protocol), see README for more information. - JDBC Compliance -- Passes all tests besides stored procedure tests - Fix and sort primary key names in DBMetaData (SF bugs 582086 and 582086) - Float types now reported as java.sql.Types.FLOAT (SF bug 579573) - ResultSet.getTimestamp() now works for DATE types (SF bug 559134) - ResultSet.getDate/Time/Timestamp now recognizes all forms of invalid values that have been set to all zeroes by MySQL (SF bug 586058) - Testsuite now uses Junit (which you can get from www.junit.org) - The driver now only works with JDK-1.2 or newer. - Added multi-host failover support (see README) - General source-code cleanup. - Overall speed improvements via controlling transient object creation in MysqlIO class when reading packets - Performance improvements in string handling and field metadata creation (lazily instantiated) contributed by Alex Twisleton-Wykeham-Fiennes 05-16-02 - Version 2.0.14 - More code cleanup - PreparedStatement now releases resources on .close() (SF bug 553268) - Quoted identifiers not used if server version does not support them. Also, if server started with --ansi or --sql-mode=ANSI_QUOTES then '"' will be used as an identifier quote, otherwise '`' will be used. - ResultSet.getDouble() now uses code built into JDK to be more precise (but slower) - LogicalHandle.isClosed() calls through to physical connection - Added SQL profiling (to STDERR). Set "profileSql=true" in your JDBC url. See README for more information. - Fixed typo for relaxAutoCommit parameter. 04-24-02 - Version 2.0.13 - More code cleanup. - Fixed unicode chars being read incorrectly (SF bug 541088) - Faster blob escaping for PrepStmt - Added set/getPortNumber() to DataSource(s) (SF bug 548167) - Added setURL() to MySQLXADataSource (SF bug 546019) - PreparedStatement.toString() fixed (SF bug 534026) - ResultSetMetaData.getColumnClassName() now implemented - Rudimentary version of Statement.getGeneratedKeys() from JDBC-3.0 now implemented (you need to be using JDK-1.4 for this to work, I believe) - DBMetaData.getIndexInfo() - bad PAGES fixed (SF BUG 542201) 04-07-02 - Version 2.0.12 - General code cleanup. - Added getIdleFor() method to Connection and MysqlLogicalHandle. - Relaxed synchronization in all classes, should fix 520615 and 520393. - Added getTable/ColumnPrivileges() to DBMD (fixes 484502). - Added new types to getTypeInfo(), fixed existing types thanks to Al Davis and Kid Kalanon. - Added support for BIT types (51870) to PreparedStatement. - Fixed getRow() bug (527165) in ResultSet - Fixes for ResultSet updatability in PreparedStatement. - Fixed timezone off by 1-hour bug in PreparedStatement (538286, 528785). - ResultSet: Fixed updatability (values being set to null if not updated). - DataSources - fixed setUrl bug (511614, 525565), wrong datasource class name (532816, 528767) - Added identifier quoting to all DatabaseMetaData methods that need them (should fix 518108) - Added support for YEAR type (533556) - ResultSet.insertRow() should now detect auto_increment fields in most cases and use that value in the new row. This detection will not work in multi-valued keys, however, due to the fact that the MySQL protocol does not return this information. - ResultSet.refreshRow() implemented. - Fixed testsuite.Traversal afterLast() bug, thanks to Igor Lastric. 01-27-02 - Version 2.0.11 - Fixed missing DELETE_RULE value in DBMD.getImported/ExportedKeys() and getCrossReference(). - Full synchronization of Statement.java. - More changes to fix "Unexpected end of input stream" errors when reading BLOBs. This should be the last fix. 01-24-02 - Version 2.0.10 - Fixed spurious "Unexpected end of input stream" errors in MysqlIO (bug 507456). - Fixed null-pointer-exceptions when using MysqlConnectionPoolDataSource with Websphere 4 (bug 505839). 01-13-02 - Version 2.0.9 - Ant build was corrupting included jar files, fixed (bug 487669). - Fixed extra memory allocation in MysqlIO.readPacket() (bug 488663). - Implementation of DatabaseMetaData.getExported/ImportedKeys() and getCrossReference(). - Full synchronization on methods modifying instance and class-shared references, driver should be entirely thread-safe now (please let me know if you have problems) - DataSource implementations moved to org.gjt.mm.mysql.jdbc2.optional package, and (initial) implementations of PooledConnectionDataSource and XADataSource are in place (thanks to Todd Wolff for the implementation and testing of PooledConnectionDataSource with IBM WebSphere 4). - Added detection of network connection being closed when reading packets (thanks to Todd Lizambri). - Fixed quoting error with escape processor (bug 486265). - Report batch update support through DatabaseMetaData (bug 495101). - Fixed off-by-one-hour error in PreparedStatement.setTimestamp() (bug 491577). - Removed concatenation support from driver (the '||' operator), as older versions of VisualAge seem to be the only thing that use it, and it conflicts with the logical '||' operator. You will need to start mysqld with the "--ansi" flag to use the '||' operator as concatenation (bug 491680) - Fixed casting bug in PreparedStatement (bug 488663). 11-25-01 - Version 2.0.8 - Batch updates now supported (thanks to some inspiration from Daniel Rall). - XADataSource/ConnectionPoolDataSource code (experimental) - PreparedStatement.setAnyNumericType() now handles positive exponents correctly (adds "+" so MySQL can understand it). - DatabaseMetaData.getPrimaryKeys() and getBestRowIdentifier() are now more robust in identifying primary keys (matches regardless of case or abbreviation/full spelling of Primary Key in Key_type column). 10-24-01 - Version 2.0.7 - PreparedStatement.setCharacterStream() now implemented - Fixed dangling socket problem when in high availability (autoReconnect=true) mode, and finalizer for Connection will close any dangling sockets on GC. - Fixed ResultSetMetaData.getPrecision() returning one less than actual on newer versions of MySQL. - ResultSet.getBlob() now returns null if column value was null. - Character sets read from database if useUnicode=true and characterEncoding is not set. (thanks to Dmitry Vereshchagin) - Initial transaction isolation level read from database (if avaialable) (thanks to Dmitry Vereshchagin) - Fixed DatabaseMetaData.supportsTransactions(), and supportsTransactionIsolationLevel() and getTypeInfo() SQL_DATETIME_SUB and SQL_DATA_TYPE fields not being readable. - Fixed PreparedStatement generating SQL that would end up with syntax errors for some queries. - Fixed ResultSet.isAfterLast() always returning false. - Fixed timezone issue in PreparedStatement.setTimestamp() (thanks to Erik Olofsson) - Captialize type names when "captializeTypeNames=true" is passed in URL or properties (for WebObjects, thanks to Anjo Krank) - Updatable result sets now correctly handle NULL values in fields. - PreparedStatement.setDouble() now uses full-precision doubles (reverting a fix made earlier to truncate them). - PreparedStatement.setBoolean() will use 1/0 for values if your MySQL Version >= 3.21.23. 06-16-01 - Version 2.0.6 Fixed PreparedStatement parameter checking - Fixed case-sensitive column names in ResultSet.java 06-13-01 - Version 2.0.5 - Fixed ResultSet.getBlob() ArrayIndex out-of-bounds - Fixed ResultSetMetaData.getColumnTypeName for TEXT/BLOB - Fixed ArrayIndexOutOfBounds when sending large BLOB queries (Max size packet was not being set) - Added ISOLATION level support to Connection.setIsolationLevel() - Fixed NPE on PreparedStatement.executeUpdate() when all columns have not been set. - Fixed data parsing of TIMESTAMPs with 2-digit years - Added Byte to PreparedStatement.setObject() - ResultSet.getBoolean() now recognizes '-1' as 'true' - ResultSet has +/-Inf/inf support - ResultSet.insertRow() works now, even if not all columns are set (they will be set to "NULL") - DataBaseMetaData.getCrossReference() no longer ArrayIndexOOB - getObject() on ResultSet correctly does TINYINT->Byte and SMALLINT->Short 12-03-00 - Version 2.0.3 - Implemented getBigDecimal() without scale component for JDBC2. - Fixed composite key problem with updateable result sets. - Added detection of -/+INF for doubles. - Faster ASCII string operations. - Fixed incorrect detection of MAX_ALLOWED_PACKET, so sending large blobs should work now. - Fixed off-by-one error in java.sql.Blob implementation code. - Added "ultraDevHack" URL parameter, set to "true" to allow (broken) Macromedia UltraDev to use the driver. 04-06-00 - Version 2.0.1 - Fixed RSMD.isWritable() returning wrong value. Thanks to Moritz Maass. - Cleaned up exception handling when driver connects - Columns that are of type TEXT now return as Strings when you use getObject() - DatabaseMetaData.getPrimaryKeys() now works correctly wrt to key_seq. Thanks to Brian Slesinsky. - No escape processing is done on PreparedStatements anymore per JDBC spec. - Fixed many JDBC-2.0 traversal, positioning bugs, especially wrt to empty result sets. Thanks to Ron Smits, Nick Brook, Cessar Garcia and Carlos Martinez. - Fixed some issues with updatability support in ResultSet when using multiple primary keys. 02-21-00 - Version 2.0pre5 - Fixed Bad Handshake problem. 01-10-00 - Version 2.0pre4 - Fixes to ResultSet for insertRow() - Thanks to Cesar Garcia - Fix to Driver to recognize JDBC-2.0 by loading a JDBC-2.0 class, instead of relying on JDK version numbers. Thanks to John Baker. - Fixed ResultSet to return correct row numbers - Statement.getUpdateCount() now returns rows matched, instead of rows actually updated, which is more SQL-92 like. 10-29-99 - Statement/PreparedStatement.getMoreResults() bug fixed. Thanks to Noel J. Bergman. - Added Short as a type to PreparedStatement.setObject(). Thanks to Jeff Crowder - Driver now automagically configures maximum/preferred packet sizes by querying server. - Autoreconnect code uses fast ping command if server supports it. - Fixed various bugs wrt. to packet sizing when reading from the server and when alloc'ing to write to the server. 08-17-99 - Version 2.0pre - Now compiles under JDK-1.2. The driver supports both JDK-1.1 and JDK-1.2 at the same time through a core set of classes. The driver will load the appropriate interface classes at runtime by figuring out which JVM version you are using. - Fixes for result sets with all nulls in the first row. (Pointed out by Tim Endres) - Fixes to column numbers in SQLExceptions in ResultSet (Thanks to Blas Rodriguez Somoza) - The database no longer needs to specified to connect. (Thanks to Christian Motschke) 07-04-99 - Version 1.2b - Better Documentation (in progress), in doc/mm.doc/book1.html - DBMD now allows null for a column name pattern (not in spec), which it changes to '%'. - DBMD now has correct types/lengths for getXXX(). - ResultSet.getDate(), getTime(), and getTimestamp() fixes. (contributed by Alan Wilken) - EscapeProcessor now handles \{ \} and { or } inside quotes correctly. (thanks to Alik for some ideas on how to fix it) - Fixes to properties handling in Connection. (contributed by Juho Tikkala) - ResultSet.getObject() now returns null for NULL columns in the table, rather than bombing out. (thanks to Ben Grosman) - ResultSet.getObject() now returns Strings for types from MySQL that it doesn't know about. (Suggested by Chris Perdue) - Removed DataInput/Output streams, not needed, 1/2 number of method calls per IO operation. - Use default character encoding if one is not specified. This is a work-around for broken JVMs, because according to spec, EVERY JVM must support "ISO8859_1", but they don't. - Fixed Connection to use the platform character encoding instead of "ISO8859_1" if one isn't explicitly set. This fixes problems people were having loading the character- converter classes that didn't always exist (JVM bug). (thanks to Fritz Elfert for pointing out this problem) - Changed MysqlIO to re-use packets where possible to reduce memory usage. - Fixed escape-processor bugs pertaining to {} inside quotes. 04-14-99 - Version 1.2a - Fixed character-set support for non-Javasoft JVMs (thanks to many people for pointing it out) - Fixed ResultSet.getBoolean() to recognize 'y' & 'n' as well as '1' & '0' as boolean flags. (thanks to Tim Pizey) - Fixed ResultSet.getTimestamp() to give better performance. (thanks to Richard Swift) - Fixed getByte() for numeric types. (thanks to Ray Bellis) - Fixed DatabaseMetaData.getTypeInfo() for DATE type. (thanks to Paul Johnston) - Fixed EscapeProcessor for "fn" calls. (thanks to Piyush Shah at locomotive.org) - Fixed EscapeProcessor to not do extraneous work if there are no escape codes. (thanks to Ryan Gustafson) - Fixed Driver to parse URLs of the form "jdbc:mysql://host:port" (thanks to Richard Lobb) 03-24-99 - Version 1.1i - Fixed Timestamps for PreparedStatements - Fixed null pointer exceptions in RSMD and RS - Re-compiled with jikes for valid class files (thanks ms!) 03-08-99 - Version 1.1h - Fixed escape processor to deal with un-matched { and } (thanks to Craig Coles) - Fixed escape processor to create more portable (between DATETIME and TIMESTAMP types) representations so that it will work with BETWEEN clauses. (thanks to Craig Longman) - MysqlIO.quit() now closes the socket connection. Before, after many failed connections some OS's would run out of file descriptors. (thanks to Michael Brinkman) - Fixed NullPointerException in Driver.getPropertyInfo. (thanks to Dave Potts) - Fixes to MysqlDefs to allow all *text fields to be retrieved as Strings. (thanks to Chris at Leverage) - Fixed setDouble in PreparedStatement for large numbers to avoid sending scientific notation to the database. (thanks to J.S. Ferguson) - Fixed getScale() and getPrecision() in RSMD. (contrib'd by James Klicman) - Fixed getObject() when field was DECIMAL or NUMERIC (thanks to Bert Hobbs) - DBMD.getTables() bombed when passed a null table-name pattern. Fixed. (thanks to Richard Lobb) - Added check for "client not authorized" errors during connect. (thanks to Hannes Wallnoefer) 02-19-99 - Version 1.1g - Result set rows are now byte arrays. Blobs and Unicode work bidriectonally now. The useUnicode and encoding options are implemented now. - Fixes to PreparedStatement to send binary set by setXXXStream to be sent un-touched to the MySQL server. - Fixes to getDriverPropertyInfo(). 12-31-98 - Version 1.1f - Changed all ResultSet fields to Strings, this should allow Unicode to work, but your JVM must be able to convert between the character sets. This should also make reading data from the server be a bit quicker, because there is now no conversion from StringBuffer to String. - Changed PreparedStatement.streamToString() to be more efficient (code from Uwe Schaefer). - URL parsing is more robust (throws SQL exceptions on errors rather than NullPointerExceptions) - PreparedStatement now can convert Strings to Time/Date values via setObject() (code from Robert Currey). - IO no longer hangs in Buffer.readInt(), that bug was introduced in 1.1d when changing to all byte-arrays for result sets. (Pointed out by Samo Login) 11-03-98 - Version 1.1b - Fixes to DatabaseMetaData to allow both IBM VA and J-Builder to work. Let me know how it goes. (thanks to Jac Kersing) - Fix to ResultSet.getBoolean() for NULL strings (thanks to Barry Lagerweij) - Beginning of code cleanup, and formatting. Getting ready to branch this off to a parallel JDBC-2.0 source tree. - Added "final" modifier to critical sections in MysqlIO and Buffer to allow compiler to inline methods for speed. 9-29-98 - If object references passed to setXXX() in PreparedStatement are null, setNull() is automatically called for you. (Thanks for the suggestion goes to Erik Ostrom) - setObject() in PreparedStatement will now attempt to write a serialized representation of the object to the database for objects of Types.OTHER and objects of unknown type. - Util now has a static method readObject() which given a ResultSet and a column index will re-instantiate an object serialized in the above manner. 9-02-98 - Vesion 1.1 - Got rid of "ugly hack" in MysqlIO.nextRow(). Rather than catch an exception, Buffer.isLastDataPacket() was fixed. - Connection.getCatalog() and Connection.setCatalog() should work now. - Statement.setMaxRows() works, as well as setting by property maxRows. Statement.setMaxRows() overrides maxRows set via properties or url parameters. - Automatic re-connection is available. Because it has to "ping" the database before each query, it is turned off by default. To use it, pass in "autoReconnect=true" in the connection URL. You may also change the number of reconnect tries, and the initial timeout value via "maxReconnects=n" (default 3) and "initialTimeout=n" (seconds, default 2) parameters. The timeout is an exponential backoff type of timeout, e.g. if you have initial timeout of 2 seconds, and maxReconnects of 3, then the driver will timeout 2 seconds, 4 seconds, then 16 seconds between each re-connection attempt. 8-24-98 - Version 1.0 - Fixed handling of blob data in Buffer.java - Fixed bug with authentication packet being sized too small. - The JDBC Driver is now under the LPGL 8-14-98 - - Fixed Buffer.readLenString() to correctly read data for BLOBS. - Fixed PreparedStatement.stringToStream to correctly read data for BLOBS. - Fixed PreparedStatement.setDate() to not add a day. (above fixes thanks to Vincent Partington) - Added URL parameter parsing (?user=... etc). 8-04-98 - Version 0.9d - Big news! New package name. Tim Endres from ICE Engineering is starting a new source tree for GNU GPL'd Java software. He's graciously given me the org.gjt.mm package directory to use, so now the driver is in the org.gjt.mm.mysql package scheme. I'm "legal" now. Look for more information on Tim's project soon. - Now using dynamically sized packets to reduce memory usage when sending commands to the DB. - Small fixes to getTypeInfo() for parameters, etc. - DatabaseMetaData is now fully implemented. Let me know if these drivers work with the various IDEs out there. I've heard that they're working with JBuilder right now. - Added JavaDoc documentation to the package. - Package now available in .zip or .tar.gz. 7-28-98 - Version 0.9 - Implemented getTypeInfo(). Connection.rollback() now throws an SQLException per the JDBC spec. - Added PreparedStatement that supports all JDBC API methods for PreparedStatement including InputStreams. Please check this out and let me know if anything is broken. - Fixed a bug in ResultSet that would break some queries that only returned 1 row. - Fixed bugs in DatabaseMetaData.getTables(), DatabaseMetaData.getColumns() and DatabaseMetaData.getCatalogs(). - Added functionality to Statement that allows executeUpdate() to store values for IDs that are automatically generated for AUTO_INCREMENT fields. Basically, after an executeUpdate(), look at the SQLWarnings for warnings like "LAST_INSERTED_ID = 'some number', COMMAND = 'your SQL query'". If you are using AUTO_INCREMENT fields in your tables and are executing a lot of executeUpdate()s on one Statement, be sure to clearWarnings() every so often to save memory. 7-06-98 - Version 0.8 - Split MysqlIO and Buffer to separate classes. Some ClassLoaders gave an IllegalAccess error for some fields in those two classes. Now mm.mysql works in applets and all classloaders. Thanks to Joe Ennis for pointing out the problem and working on a fix with me. 7-01-98 - Version 0.7 - Fixed DatabaseMetadata problems in getColumns() and bug in switch statement in the Field constructor. Thanks to Costin Manolache for pointing these out. 5-21-98 - Version 0.6 - Incorporated efficiency changes from Richard Swift in MysqlIO.java and ResultSet.java - We're now 15% faster than gwe's driver. - Started working on DatabaseMetaData. The following methods are implemented: * getTables() * getTableTypes() * getColumns * getCatalogs()