Reduce memory usage for queries involving GROUP BY clauses. (#19187)
Simplify writer count configuration. Add the new task.min-writer-count
and task.max-writer-count configuration properties along with the
task_min_writer_count and task_max_writer_count session properties, which
control the number of writers depending on scenario. Deprecate the
task.writer-count, task.scale-writers.max-writer-count, and
task.partitioned-writer-count configuration properties, which will be
removed in the future. Remove the task_writer_count,
task_partitioned_writer_count, and task_scale_writers_max_writer_count
session properties. (#19135)
Remove support for the parse-decimal-literals-as-double legacy configuration
property. (#19166)
Fix out of memory error when running queries with GROUP BY clauses. (#19119)
Reduce the number of read requests for scanning small Parquet files. Add the
parquet.small-file-threshold configuration property and the
parquet_small_file_threshold session property to change the default size of
3MB, below which, files will be read in their entirety. Setting this
configuration to 0B disables the feature. (#19127)
Fix potential data duplication when running OPTIMIZE coincides with
updates to a table. (#19128)
Fix error when deleting rows in tables that have partitions with certain
non-alphanumeric characters in their names. (#18922)
Reduce the number of read requests for scanning small Parquet files. Add the
parquet.small-file-threshold configuration property and the
parquet_small_file_threshold session property to change the default size of
3MB, below which, files will be read in their entirety. Setting this
configuration to 0B disables the feature. (#19127)
Reduce the number of read requests for scanning small Parquet files. Add the
parquet.small-file-threshold configuration property and the
parquet_small_file_threshold session property to change the default size of
3MB, below which, files will be read in their entirety. Setting this
configuration to 0B disables the feature. (#19127)
Reduce the number of read requests for scanning small Parquet files. Add the
parquet.small-file-threshold configuration property and the
parquet_small_file_threshold session property to change the default size of
3MB, below which, files will be read in their entirety. Setting this
configuration to 0B disables the feature. (#19127)
Fix incorrect column statistics for the Parquet file format in manifest files. (#19052)