Version information
- Release date: December 2, 2021
- Version: V2.2.7
Overview
OceanBase Connector/J V2.2.7 is released to fully support the PREPARE_EXECUTE protocol and its SEND PIECE feature, addressing customer issues. It can be used for regular business operations.
Feature enhancements
- SEND PIECE is disabled by default in Oracle-compatible mode. To enable it, set useServerPrepStmts=true&usePieceData=true.
- COM_STMT_PREPARE_EXECUTE supports batch operations in Oracle-compatible mode.
- The performance of PreparedStatement.setBytes has been optimized in Oracle-compatible mode, reducing the time consumed for 32K data from 60ms to 15ms.
- Adjusted the limit for Statement FetchSize.
- Adjusted the conditions for using useCursorFetch to read result sets.
- Stream reading is no longer supported in Oracle-compatible mode, consistent with native Oracle behavior.
- Placeholders in
nameformat are automatically converted to?format when not used in Procedures/Functions. - Modified the default value of
cachePrepStmtstofalse, aligning it with MySQL JDBC.
Bug fixes
- Fixed the issue where querying Oracle RAW type data via
stmt.setBinaryStreamreturned incomplete data. - Fixed the error when using
setClobwithEmptyCLOB()in Oracle-compatible mode. - Fixed the error when Localdatetime was used to handle timestamp.
- Fixed the field mapping error when using column aliases in a MyBatis environment.
- Fixed the type judgment error after calling
getObject()when Clob and Blob are in an inheritance relationship. - Fixed the error when using
SEND PIECEto connect to ODP. - Fixed the error when specifying the Clob column's class as String in
getObject(). - Fixed the error when setting
usePipelineAuth=true. - Fixed the error for the
rewriteBatchparameter. - Fixed the issue where setting Port on OceanBaseDataSource did not take effect.
- Fixed the issue where uploading failed due to single quotes in a Clob column.
- Fixed the issue where hints were treated as comments and removed in Oracle-compatible mode.