12.24. Release 306
General Changes
- Fix planning failure for queries containing a
LIMIT after a global
aggregation. (#437)
- Fix missing column types in
EXPLAIN output. (#328)
- Fix accounting of peak revocable memory reservation. (#413)
- Fix double memory accounting for aggregations when spilling is active. (#413)
- Fix excessive CPU usage that can occur when spilling for window functions. (#468)
- Fix incorrect view name displayed by
SHOW CREATE VIEW. (#433)
- Allow specifying
NOT NULL when creating tables or adding columns. (#418)
- Add a config option (
query.stage-count-warning-threshold) to specify a
per-query threshold for the number of stages. When this threshold is exceeded,
a TOO_MANY_STAGES warning is raised. (#330)
- Support session property values with special characters (e.g., comma or equals sign). (#407)
- Remove the
deprecated.legacy-unnest-array-rows configuration option.
The legacy behavior for UNNEST of arrays containing ROW values is no
longer supported. (#430)
- Remove the
deprecated.legacy-row-field-ordinal-access configuration option.
The legacy mechanism for accessing fields of anonymous ROW types is no longer
supported. (#428)
- Remove the
deprecated.group-by-uses-equal configuration option. The legacy equality
semantics for GROUP BY are not longer supported. (#432)
- Remove the
deprecated.legacy-map-subscript. The legacy behavior for the map subscript
operator on missing keys is no longer supported. (#429)
- Remove the
deprecated.legacy-char-to-varchar-coercion configuration option. The
legacy coercion rules between CHAR and VARCHAR types are no longer
supported. (#431)
- Remove deprecated
distributed_join system property. Use join_distribution_type
instead. (#452)
Hive Connector Changes
- Fix calling procedures immediately after startup, before any other queries are run.
Previously, the procedure call would fail and also cause all subsequent Hive queries
to fail. (#414)
- Improve ORC reader performance for decoding
REAL and DOUBLE types. (#465)
MySQL Connector Changes
- Allow creating or renaming tables, and adding, renaming, or dropping columns. (#418)
PostgreSQL Connector Changes
- Fix predicate pushdown for PostgreSQL
ENUM type. (#408)
- Allow creating or renaming tables, and adding, renaming, or dropping columns. (#418)
Redshift Connector Changes
- Allow creating or renaming tables, and adding, renaming, or dropping columns. (#418)
SQL Server Connector Changes
- Allow creating or renaming tables, and adding, renaming, or dropping columns. (#418)
Base-JDBC Connector Library Changes
- Allow mapping column type to Presto type based on
Block. (#454)
SPI Changes
- Deprecate Table Layout APIs. Connectors can opt out of the legacy behavior by implementing
ConnectorMetadata.usesLegacyTableLayouts(). (#420)
- Add support for limit pushdown into connectors via the
ConnectorMetadata.applyLimit()
method. (#421)
- Add time spent waiting for resources to
QueryCompletedEvent. (#461)
