12.3. Release 332 (08 Apr 2020)
General Changes
- Fix query failure during planning phase for certain queries involving multiple joins. (#3149)
- Fix execution failure for queries involving large
IN predicates on decimal values with precision larger than 18. (#3191)
- Fix prepared statements or view creation for queries containing certain nested aliases or
TABLESAMPLE clauses. (#3250)
- Fix rare query failure. (#2981)
- Ignore trailing whitespace when loading configuration files such as
etc/event-listener.properties or etc/group-provider.properties.
Trailing whitespace in etc/config.properties and catalog properties
files files was already ignored. (#3231)
- Reduce overhead for internal communication requests. (#3215)
- Include filters over all table columns in output of
EXPLAIN (TYPE IO). (#2743)
- Support configuring multiple event listeners. The properties files for all the event listeners
can be specified using the
event-listener.config-files configuration property. (#3128)
- Add
CREATE SCHEMA ... AUTHORIZATION syntax to create a schema with specified owner. (#3066).
- Add
optimizer.push-partial-aggregation-through-join configuration property to control
pushing partial aggregations through inner joins. Previously, this was only available
via the push_partial_aggregation_through_join session property. (#3205)
- Rename configuration property
optimizer.push-aggregation-through-join
to optimizer.push-aggregation-through-outer-join. (#3205)
- Add operator statistics for the number of splits processed with a dynamic filter applied. (#3217)
Security Changes
- Fix LDAP authentication when user belongs to multiple groups. (#3206)
- Verify access to table columns when running
SHOW STATS. (#2665)
- Only return views accessible to the user from
information_schema.views. (#3290)
JDBC Driver Changes
- Add
clientInfo property to set extra information about the client. (#3188)
- Add
traceToken property to set a trace token for correlating requests across systems. (#3188)
BigQuery Connector Changes
- Extract parent project ID from service account before looking at the environment. (#3131)
Elasticsearch Connector Changes
- Add support for
ip type. (#3347)
- Add support for
keyword fields with numeric values. (#3381)
- Remove unnecessary
elasticsearch.aws.use-instance-credentials configuration property. (#3265)
Hive Connector Changes
- Fix failure reading certain Parquet files larger than 2GB. (#2730)
- Improve performance when reading gzip-compressed Parquet data. (#3175)
- Explicitly disallow reading from Delta Lake tables. Previously, reading
from partitioned tables would return zero rows, and reading from
unpartitioned tables would fail with a cryptic error. (#3366)
- Add
hive.fs.new-directory-permissions configuration property for setting the permissions of new directories
created by Presto. Default value is 0777, which corresponds to previous behavior. (#3126)
- Add
hive.partition-use-column-names configuration property and matching partition_use_column_names catalog
session property that allows to match columns between table and partition schemas by names. By default they are mapped
by index. (#2933)
- Add support for
CREATE SCHEMA ... AUTHORIZATION to create a schema with specified owner. (#3066).
- Allow specifying the Glue metastore endpoint URL using the
hive.metastore.glue.endpoint-url configuration property. (#3239)
- Add experimental file system caching. This can be enabled with the
hive.cache.enabled configuration property. (#2679)
- Support reading files compressed with newer versions of LZO. (#3209)
- Add support for Alluxio Catalog Service. (#2116)
- Remove unnecessary
hive.metastore.glue.use-instance-credentials configuration property. (#3265)
- Remove unnecessary
hive.s3.use-instance-credentials configuration property. (#3265)
- Add flexible S3 Security Mapping, allowing for separate credentials
or IAM roles for specific users or buckets/paths. (#3265)
- Add support for specifying an External ID for an IAM role trust policy using
the
hive.metastore.glue.external-id configuration property (#3144)
- Allow using configured S3 credentials with IAM role. Previously,
the configured IAM role was silently ignored. (#3351)
Kudu Connector Changes
- Fix incorrect column mapping in Kudu connector. (#3170, #2963)
- Fix incorrect query result for certain queries involving
IS NULL predicates with OR. (#3274)
Memory Connector Changes
- Include views in the list of tables returned to the JDBC driver. (#3208)
MongoDB Connector Changes
- Add
objectid_timestamp for extracting the timestamp from ObjectId. (#3089)
- Delete document from
_schema collection when DROP TABLE
is executed for a table that exists only in _schema. (#3234)
SQL Server Connector
- Disallow renaming tables between schemas. Previously, such renames were allowed
but the schema name was ignored when performing the rename. (#3284)
SPI Changes
- Expose row filters and column masks in
QueryCompletedEvent. (#3183)
- Expose referenced functions and procedures in
QueryCompletedEvent. (#3246)
- Allow
Connector to provide EventListener instances. (#3166)
- Deprecate the
ConnectorPageSourceProvider.createPageSource() variant without the
dynamicFilter parameter. The method will be removed in a future release. (#3255)
