Maintenance Release Changelog v8.9

Enhancement: Added Korean language analyzer for full-text search V2.

Enhancement: Added support to infer CSV files with a single column when the file contains no field terminators in any record.

Enhancement and Bugfix: Fixed out-of-memory errors and extra memory usage. Introduced new engine variable pipelines_iceberg_data_workers_heap_size global to control memory used by iceberg data processing.

Bugfix: Fixed handling of heartbeat messages in the MongoDB extractor in debug mode.

Bugfix: Fixed display of default BSON and string values with null-terminators in the information schema.

Bugfix: Removed trailing dot for decimal column types that have scale equal to 0.

Bugfix: Fixed IN-list index matching for columnstore tables when a query has multiple IN-list predicates.

Bugfix: Fixed a bug that caused an invalid optree error after the JsonArrayContainsToTableBuiltin rewrite.

Bugfix: Fixed a crash that occurred during spilling when executing a query with a large number of GROUP BY columns.

Bugfix: Fixed performance regression in Vector Search when using DOT_PRODUCT metric.

Bugfix: Added an optional 'swap_time' argument to UUID_TO_BIN and BIN_TO_UUID functions.

Bugfix: Allowed cached table memory to be freed for empty tables in replica databases.

Bugfix: Fixed a lateral join parsing bug.