OceanBase Connector/J V2.4.4

Version information

• Release date: July 10, 2023
• Version: V2.4.4

Overview

OceanBase Connector/J V2.4.4 provides enhanced log diagnostic capabilities and fixes bugs of earlier versions. The version is recommended for general businesses.

Enhanced features

• The JDBC logging feature is enhanced. I/O logs are distinguished from time consumption logs. JDBC diagnostic capabilities are improved.
• The getIndex(name) method is optimized.
• The internal resource release mechanism is optimized to avoid errors when the number of cursors reaches the upper limit.
• The setFixedCHAR method is supported. For more information, see com.oceanbase.jdbc.ObPrepareStatement.

Bug fixes

• Fixed a bug that the precision of NUMBER data is negative and the getScale and getColumnDisplaySize methods are inconsistent with those in Oracle databases.
• Fixed a bug that the return result contains garbled characters when procedures in system tables are queried.
• Fixed a bug that floating-point numbers in composite data types are forcibly converted into integers.
• Fixed a bug that the protocol contains null pointers.
• Fixed a bug that in Oracle mode, the "Flag '0'" error is returned when you query data of the INTERVAL DAY TO SECOND type.
• Fixed a bug that the "java.lang.StringIndexOutOfBoundsException" error is returned when you call the VALUES function after you use the ON DUPLICATE KEY UPDATE statement to insert data.
• Fixed a bug that in Oracle mode, an error is returned when you use getString, getDouble, getFloat, or getObject to get an invalid value such as INF, -INF, or NaN of the BINARY_FLOAT or BINARY_DOUBLE type.
• Fixed a bug that when both the PreparedStatement and PrepareExecute protocols are enabled, the RETURNING ... INTO ... DML statement returns the "ArrayIndexOutOfBoundsException" error.
• Fixed a bug that when a table name is enclosed in backticks (`), the DatabaseMetaData.getTables method returns an error. This is incompatible with native MySQL Database.
• Fixed a bug that when the PreparedStatement protocol is enabled, the DOUBLE value returned by the getBigDecimal method is inconsistent with that in native MySQL Database.
• Fixed a bug that when the serverTimezone parameter is set to Asia/Shanghai, the getObject(1, OffsetTime.class) method returns an error.