MaxCompute:Release notes

Version

Change Type

Description

v0.59.0-public

Enhancements

Enhanced Storage API streaming write and exactly-once capabilities, and extended support for the Vector type and Protobuf streams.

v0.58.0-public

Bug fixes

Fixed an issue where exceptions were not correctly propagated during upsert flush when write requests failed or timed out.

v0.45.2-public

Enhancements

• Console: The new console is now available for release.

• SQL COST command: Fixed a bug where the SDK incorrectly detected placeholders in a PreparedStatement. The SDK now uses the syntax tree to determine placeholder positions, resolving incorrect placeholder detection.

v0.43.4-public

Enhancements

• Tunnel: The connection timeout and query timeout periods can now be specified.

• Tunnel: Resolved an issue where invalid Tunnel endpoints caused connection failures.

v0.43.3-public

New features

• External volumes: External volumes can now be created through the SDK.

• Antler: Upgraded the Antler version.

v0.37.10-public

New features

Resource files: Upload and download resource files between 500 MB and 2 GB.

v0.37.9-public

New features

Tunnel: Added the Arrow interface to TableTunnel.

Enhancements

• Core: Optimized memory usage during resource downloads.

• Tunnel:

  • Reconstructed the SQL DATE-related methods of ArrayRecord.

  • Added the overloading method createStreamUploadSession to TableTunnel.

• MaxCompute Query Acceleration (MCQA): Added the following overloading methods to SQLExecutor: getTaskName, getSubqueryId, getResult, and getResultSet.

Bug fixes

• Tunnel:

  • Fixed an issue in OdpsTypeTransformer where DATETIME type values in SQL statements were out of the valid time range.

  • Fixed an issue where TunnelBufferedWriter had high memory overhead.

• MapReduce: Fixed an issue where ColumnBasedRecordComparator could throw ArrayOutOfBoundException.

Compatibility changes

Tunnel: The internal data type for the DATE type in ArrayRecord has changed from java.sql.Date to java.time.LocalDate.

v0.36.7-public

Enhancements

• Tunnel: Added the TableTunnel.FlushResult#reset() interface so that StreamRecordPack instances can be reused.

• MapReduce: When a MapReduce task is converted to an SQL task, multiple inputs are now merged for better performance.

• SQLExecutor: Added the SQLExecutor#getSummary() interface.

v0.36.4-public

Enhancements

• Core: Projects can now be iterated using filters. See Projects#iteratorByFilter(ProjectFilter filter) for details.

• Tunnel:

  • A single field in a MaxCompute table cannot exceed 8 MB due to storage limits. Split fields larger than 8 MB into multiple fields.

  • Write timeout is now supported.

  • Partitions can be automatically created in StreamTunnel.

• SQLExecutor:

  • Added a cache for the Tunnel endpoint.

  • Multiple execution results can now be downloaded concurrently.

Bug fixes

• Core: Fixed an issue where Instance#getTaskCost(String taskName) returned an invalid value.

• SQLExecutor: Fixed an issue where downloading execution results was suspended.