Remove the deprecated.legacy-timestamp configuration property and the legacy_timestamp session property. (#4799)
Change timestamp operations to match the SQL specification. The value of a TIMESTAMP
type is not affected by the session time zone. (#37)
Preserve precision when applying AT TIME ZONE to values of type TIMESTAMP. (#4866)
Fix serialization of NULL values in ROW, MAP and ARRAY types for old Presto clients. (#4778)
Fix failure when aggregation query contains duplicate expressions. (#4872)
Fix compiler failure when querying timestamps with a precision greater than 6. (#4824)
Fix parsing failure of timestamps due to daylight saving changes. (#37)
Fix failure when calling extract() with TIMEZONE_HOUR and TIMEZONE_MINUTE for
TIMESTAMP WITH TIME ZONE type. (#4867)
Fix query deadlock for connectors that wait for dynamic filters. (#4946)
Fix failure when TIME or TIMESTAMP subtraction returns a negative value. (#4847)
Fix failure when duplicate expressions appear in DISTINCT clause. (#4787)
Fix failure for certain join queries during spilling or when available memory is low. (#4994)
Fix issue where the query_max_scan_physical_bytes session property was ignored if
the query.max-scan-physical-bytes configuration property was not defined. (#5009)
Correctly compute sample ratio when TABLESAMPLE is used with a fractional percentage. (#5074)
Fail queries with a proper error message when TABLESAMPLE is used with a non-numeric sample ratio. (#5074)
Fail with an explicit error rather than OutOfMemoryError for certain operations. (#4890)
Skip stripes and row groups based on timestamp statistics for ORC files. (#1147)
Skip S3 objects with the DeepArchive storage class (in addition to the Glacier
storage class) when hive.s3.skip-glacier-objects is enabled. (#5002)
Use a temporary staging directory for temporary files when writing to sorted bucketed tables.
This allows using a more efficient file system for temporary files. (#3434)
Fix metastore cache invalidation for GRANT and REVOKE. (#4768)
Add Parquet and RCBinary configuration propertieshive.parquet.time-zone
and hive.rcfile.time-zone to adjust binary timestamp values to a specific time zone. For Hive 3.1+, this
should be set to UTC. The default value is the JVM default time zone, for backwards compatibility with
earlier versions of Hive. (#4799)
Add ORC configuration propertyhive.orc.time-zone to set the default
time zone for legacy ORC files that did not declare a time zone. (#4799)
Replace the hive.time-zone configuration property with format specific properties: hive.orc.time-zone,
hive.parquet.time-zone, hive.rcfile.time-zone. (#4799)
Allow using the cluster default role with S3 security mapping. (#4931)
Remove support for bucketing on timestamp. The definition of the hash function for timestamp
incorrectly depends on the storage time zone and can result in incorrect results. (#4759)
Decrease the number of requests to the Glue metastore when fetching partitions.
This helps avoid hitting rate limits and decreases service costs. (#4938)
Match the existing user and group of the table or partition when creating new files on HDFS. (#4414)
Fix invalid timestamp values for nested data in Text, Avro, SequenceFile, JSON and CSV formats. (#4799)
Fix query failure when reading an ORC ACID table with a filter after the table
underwent a minor table compaction. (#4622)
Fix incorrect query results when reading an ORC ACID table that has deleted rows
and underwent a minor compaction. (#4623)
Fix query failure when storage caching is enabled and cached data is evicted during query execution. (#3580)
Improve performance of aggregation queries by pushing the aggregation computation into the MySQL database.
Currently, the following aggregate functions are eligible for pushdown: count, min, max,
sum and avg. (#4138)
Add oracle.connection-pool.inactive-timeout configuration property to specify how long
pooled connection can be inactive before it is closed. It defaults to 20 minutes. (#4779)
Add support for database internationalization. (#4775)
Add resilience to momentary connection authentication issues. (#4947)
Allowing forcing the mapping of certain types to VARCHAR. This can be enabled by
setting the jdbc-types-mapped-to-varchar configuration property to a comma-separated
list of type names. (#4955)
Prevent query failure for pushdown of predicates involving a large number of conjuncts. (#4918)
Add support for functions in pass-through queries. (#4801)
Enforce a limit on the number of rows fetched from Pinot. This can be configured via the
pinot.max-rows-per-split-for-segment-queries configuration property. (#4723)
Fix incorrect results for count(*) queries. (#4802)
Fix incorrect results for queries involving avg() over columns of type long, int, or float. (#4802)
Fix incorrect results when columns in pass-through query do not match selected columns. (#4802)
Improve performance of aggregation queries with predicates by pushing the computation
of both the filtering and aggregations into the PostgreSQL server where possible. (#4111)
Fix handling of PostgreSQL arrays when unsupported-type-handling is set to CONVERT_TO_VARCHAR. (#4981)
The TIMESTAMP type is encoded as a number of fractional seconds from 1970-01-01 00:00:00 in the proleptic
Gregorian calendar. This value is no longer adjusted to the session time zone. Timestamps with precision less
than or equal to 3 are now represented in microseconds. (#4799)
Remove isLegacyTimestamp() from ConnectorSession. (#4799)
Enable connectors to wait for dynamic filters before producing data on worker nodes. (#3414)