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E.3. MySQL Connector/ODBC (MyODBC) Change History

E.3.1. Changes in Connector/ODBC 5.0.12 (Not yet released)

Bugs fixed:

  • Tables with TEXT columns would be incorrectly identified, returning an Unknown SQL type - 65535 error. (Bug#20127)

  • Inserting NULL values into a DATETIME column from Access reports an error. (Bug#27896)

E.3.2. Changes in Connector/ODBC 5.0.11 (31 January 2007)

Functionality added or changed:

  • Driver now builds and is partially tested under Linux with the iODBC driver manager.

  • Added support for ODBC v2 statement options using attributes.

Bugs fixed:

  • Internal function, my_setpos_delete_ignore() could cause a crash. (Bug#22796)

  • Updates of MEMO or TEXT columns from within Microsoft Access would fail. (Bug#25263)

  • Transaction support has been added and tested. (Bug#25045)

  • Connection string parsing for DSN-less connections could fail to identify some parameters. (Bug#25316)

  • Fixed occasional mis-handling of the SQL_NUMERIC_C type.

  • Fixed the binding of certain integer types.

E.3.3. Changes in Connector/ODBC 5.0.10 (14 December 2006)

Connector/ODBC 5.0.10 is the sixth BETA release.

Functionality added or changed:

  • Added wide-string type info for SQLGetTypeInfo().

  • Added loose handling of retrieving some diagnostic data. (Bug#15782)

  • Added initial support for removing braces when calling stored procedures and retrieving result sets from procedure calls. (Bug#24485)

  • Added initial unicode support in data and metadata. (Bug#24837)

  • Significant performance improvement when retrieving large text fields in pieces using SQLGetData() with a buffer smaller than the whole data. Mainly used in Access when fetching very large text fields. (Bug#24876)

Bugs fixed:

  • String query parameters are new escaped correctly. (Bug#19078)

  • Editing DSN no longer crashes ODBC data source administrator. (Bug#24675)

E.3.4. Changes in Connector/ODBC 5.0.9 (22 November 2006)

Connector/ODBC 5.0.9 is the fifth BETA release.

This is an implementation and testing release, and is not designed for use within a production environment.

Functionality added or changed:

  • Added recognition of SQL_C_SHORT and SQL_C_TINYINT as C types.

  • Added support for column binding as SQL_NUMBERIC_STRUCT.

Bugs fixed:

  • Fixed wildcard handling of and listing of catalogs and tables in SQLTables.

  • Catch use of SQL_ATTR_PARAMSET_SIZE and report error until we fully support.

  • Corrected retrieval multiple field types bit and blob/text.

  • Fixed buffer length return for SQLDriverConnect.

  • Added limit of display size when requested via SQLColAttribute/SQL_DESC_DISPLAY_SIZE.

  • Fixed statistics to fail if it couldn't be completed.

  • Fixed SQLGetData to clear the NULL indicator correctly during multiple calls.

  • ODBC v2 behaviour in driver now supports ODBC v3 date/time types (since DriverManager maps them).

E.3.5. Changes in Connector/ODBC 5.0.8 (17 November 2006)

Connector/ODBC 5.0.8 is the fourth BETA release.

This is an implementation and testing release, and is not designed for use within a production environment.

Functionality added or changed:

  • Made distinction between CHAR/BINARY (and VAR versions).

  • Wildcards now support escaped chars and underscore matching (needed to link tables with underscores in access).

  • Also made SQL_DESC_NAME only fill in the name if there was a data pointer given, otherwise just the length.

  • Fixed display size to be length if max length isn’t available.

Bugs fixed:

  • Length now used when handling bind parameter (needed in particular for SQL_WCHAR) - this enables updating char data in MS Access.

  • Fixed string length to chars, not bytes, returned by SQLGetDiagRec.

  • Fixed using wrong pointer for SQL_MAX_DRIVER_CONNECTIONS in SQLGetInfo.

  • Fixed binding using SQL_C_LONG.

  • Allow SQLDescribeCol to be called to retrieve the length of the column name, but not the name itself.

  • Fix size return from SQLDescribeCol.

  • Fixed hanlding of numeric pointers in SQLColAttribute.

  • Fixed type returned for MYSQL_TYPE_LONG to SQL_INTEGER instead of SQL_TINYINT.

  • Fixed MDiagnostic to use correct v2/v3 error codes.

  • Set default return to SQL_SUCCESS if nothing is done for SQLSpecialColumns.

  • Updated retrieval of descriptor fields to use the right pointer types.

E.3.6. Changes in Connector/ODBC 5.0.7 (08 November 2006)

Connector/ODBC 5.0.7 is the third BETA release.

This is an implementation and testing release, and is not designed for use within a production environment.

Functionality added or changed:

  • Improved trace/log.

  • Added support for SQLStatistics to MYODBCShell.

Bugs fixed:

  • Fixed SQLDescribeCol returning column name length in bytes rather than chars.

  • SQLBindParameter now handles SQL_C_DEFAULT.

  • Corrected incorrect column index within SQLStatistics. Many more tables can now be linked into MS Access.

E.3.7. Changes in Connector/ODBC 5.0.6 (03 November 2006)

Connector/ODBC 5.0.6 is the second BETA release.

This is an implementation and testing release, and is not designed for use within a production environment.

Features, limitations and notes on this release:

  • You no longer have to have Connector/ODBC 3.51 installed before installing this version.

  • Installation is provided in the form of a standard Microsoft System Installer (MSI).

  • Connector/ODBC supports both User and System DSNs.

E.3.8. Changes in Connector/ODBC 5.0.5 (17 October 2006)

Connector/ODBC 5.0.5 is the first BETA release.

This is an implementation and testing release, and is not designed for use within a production environment.

Features, limitations and notes on this release:

  • You no longer have to have Connector/ODBC 3.51 installed before installing this version.

E.3.9. Changes in Connector/ODBC 5.0.3 (Connector/ODBC 5.0 Alpha 3) (20 June 2006)

This is an implementation and testing release, and is not designed for use within a production environment.

Features, limitations and notes on this release:

  • The following ODBC API functions have been added in this release:

    • SQLBindParameter

    • SQLBindCol

E.3.10. Changes in Connector/ODBC 5.0.2 (Never released)

Connector/ODBC 5.0.2 was an internal implementation and testing release.

E.3.11. Changes in Connector/ODBC 5.0.1 (Connector/ODBC 5.0 Alpha 2) (05 June 2006)

Features, limitations and notes on this release:

  • Connector/ODBC 5.0 is Unicode aware.

  • Connector/ODBC is currently limited to basic applications. ADO applications and Microsoft Office are not supported.

  • Connector/ODBC must be used with a Driver Manager.

  • The following ODBC API functions are implemented:

    • SQLAllocHandle

    • SQLCloseCursor

    • SQLColAttribute

    • SQLColumns

    • SQLConnect

    • SQLCopyDesc

    • SQLDisconnect

    • SQLExecDirect

    • SQLExecute

    • SQLFetch

    • SQLFreeHandle

    • SQLFreeStmt

    • SQLGetConnectAttr

    • SQLGetData

    • SQLGetDescField

    • SQLGetDescRec

    • SQLGetDiagField

    • SQLGetDiagRec

    • SQLGetEnvAttr

    • SQLGetFunctions

    • SQLGetStmtAttr

    • SQLGetTypeInfo

    • SQLNumResultCols

    • SQLPrepare

    • SQLRowcount

    • SQLTables

    The following ODBC API function are implemented, but not yet support all the available attributes/options:

    • SQLSetConnectAttr

    • SQLSetDescField

    • SQLSetDescRec

    • SQLSetEnvAttr

    • SQLSetStmtAttr

E.3.12. Changes in Connector/ODBC 3.51.17 (Not yet released)

Functionality added or changed:

  • It is now possible to specify a different character set as part of the DSN or connection string. (Bug#6667)

Bugs fixed:

  • Connector/ODBC crashed with Crystal Reports. (Bug#23816)

  • For a stored procedure that returns multiple result sets, Connector/ODBC returned only the first result set. (Bug#16817)

  • The driver was using mysql_odbc_escape_string(), which does not handle the NO_BACKSLASH_ESCAPES SQL mode. Now it uses mysql_real_escape_string(), which does. (Bug#9498)

  • SQLColumns() did not handle many of its parameters correctly, which could lead to incorrect results. The table name argument was not handled as a pattern value, and most arguments were not escaped correctly when they contained non-alphanumeric characters. (Bug#8860)

  • If there was more than one unique key on a table, the correct fields were not used in handling SQLSetPos(). (Bug#10563)

E.3.13. Changes in Connector/ODBC 3.51.16 (14 June 2007)

Functionality added or changed:

  • Connector/ODBC now supports using SSL for communication. This is not yet exposed in the setup GUI, but must be enabled through configuration files or the DSN. (Bug#12918)

Bugs fixed:

  • When using stored procedures, making a SELECT or second stored procedure call after an initial stored procedure call, the second statement will fail. (Bug#27544)

  • Using curors on results sets with multi-column keys could select the wrong value. (Bug#28255)

  • Using BETWEEN with date values, the wrong results could be returned. (Bug#15773)

  • Specifying strings as parameters using the adBSTR or adVarWChar types, (SQL_WVARCHAR and SQL_WLONGVARCHAR) would be incorrectly quoted. (Bug#16235)

  • Return values from SQLTables() may be truncated. (Bugs #22797)

  • Data in TEXT columns would fail to be read correctly. (Bug#16917)

  • SQLForeignKeys does not escape _ and % in the table name arguments. (Bug#27723)

  • When using the Don't Cache Results (option value 1048576) with Microsoft Access, the connection will fail using DAO/VisualBasic. (Bug#4657)

  • Calls to SQLNativeSql() could cause stack corruption due to an incorrect pointer cast. (Bug#28758)

  • SQLTables() did not distinguish tables from views. (Bug#23031)

  • SQL_WVARCHAR and SQL_WLONGVARCHAR parameters were not properly quoted and escaped. (Bug#16235)

E.3.14. Changes in Connector/ODBC 3.51.15 (7 May 2007)

Bugs fixed:

  • Adding a new DSN with the myodbc3i utility under AIX would fail. (Bug#27220)

  • Connector/ODBC would incorrectly claim to support SQLProcedureColumns (by returning true when queried about SQLPROCEDURECOLUMNS with SQLGetFunctions), but this functionality is not supported. (Bug#27591)

  • Using SQLDriverConnect instead of SQLConnect could cause later operations to fail. (Bug#7912)

  • An incorrect transaction isolation level may not be returned when accessing the connection attributes. (Bug#27589)

  • When inserting data using bulk statements (through SQLBulkOperations), the indicators for all rows within the insert would not updated correctly. (Bug#24306)

  • Using SQLProcedures does not return the database name within the returned resultset. (Bug#23033)

  • Connector/ODBC would return too many foreign key results when accessing tables with similar names. (Bug#4518)

  • When using blobs and parameter replacement in a statement with WHERE CURSOR OF, the SQL is truncated. (Bug#5853)

  • The SQLTransact() function did not support an empty connection handle. (Bug#21588)

E.3.15. Changes in Connector/ODBC 3.51.14 (08 March 2007)

Functionality added or changed:

  • Use of SQL_ATTR_CONNECTION_TIMEOUT on the server has now been disabled. If you attempt to set this attribute on your connection the SQL_SUCCESS_WITH_INFO will be returned, with an error number/string of HYC00: Optional feature not supported. (Bug#19823)

  • Added support for the HENV handlers in SQLEndTran().

  • Added auto-reconnect option to Connector/ODBC option parameters.

  • Added auto is null option to Connector/ODBC option parameters. (Bug#10910)

Bugs fixed:

  • The ODBC driver name and version number were incorrectly reported by the driver. (Bug#19740)

  • A string format exception would be raised when using iODBC, Connector/ODBC and the embedded MySQL server. (Bug#16535)

  • When retrieving data from columns that have been compressed using COMPRESS(), the retrieved data would be truncated to 8KB. (Bug#20208)

  • When retrieving TIME columns, C/ODBC would incorrectly interpret the type of the string and could interpret it as a DATE type instead. (Bug#25846)

  • On 64-bit systems, some types would be incorrectly returned. (Bug#26024)

  • Using DataAdapter, Connector/ODBC may continually consume memory when reading the same records within a loop (Windows Server 2003 SP1/SP2 only). (Bug#20459)

  • Connector/ODBC may insert the wrong parameter values when using prepared statements under 64-bit Linux. (Bug#22446)

  • Using Connector/ODBC, with SQLBindCol and binding the length to the return value from SQL_LEN_DATA_AT_EXEC fails with a memory allocation error. (Bug#20547)

  • The SQLDriverConnect() ODBC method did not work with recent Connector/ODBC releases. (Bug#12393)

E.3.16. Changes in Connector/ODBC 3.51.13 (Never released)

Connector/ODBC 3.51.13 was an internal implementation and testing release.

E.3.17. Changes in Connector/ODBC 3.51.12

Functionality added or changed:

  • N/A

Bugs fixed:

  • Using stored procedures with ADO, where the CommantType has been set correctly to adCmdStoredProc, calls to stored procedures would fail. (Bug#15635)

  • File DSNs could not be saved. (Bug#12019)

  • SQLColumns() returned no information for tables that had a column named using a reserved word. (Bug#9539)

E.3.18. Changes in Connector/ODBC 3.51.11

Functionality added or changed: No changes.

Bugs fixed:

  • mysql_list_dbcolumns() and insert_fields() were retrieving all rows from a table. Fixed the queries generated by these functions to return no rows. (Bug#8198)

  • SQLGetTypoInfo() returned tinyblob for SQL_VARBINARY and nothing for SQL_BINARY. Fixed to return varbinary for SQL_VARBINARY, binary for SQL_BINARY, and longblob for SQL_LONGVARBINARY. (Bug#8138)


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