12.47. Release 0.179
General Changes
- Fix issue which could cause incorrect results when processing dictionary encoded data.
If the expression can fail on bad input, the results from filtered-out rows containing
bad input may be included in the query output (#8262).
- Fix planning failure when similar expressions appear in the
ORDER BY clause of a query that
contains ORDER BY and LIMIT.
- Fix planning failure when
GROUPING() is used with the legacy_order_by session property set to true.
- Fix parsing failure when
NFD, NFC, NFKD or NFKC are used as identifiers.
- Fix a memory leak on the coordinator that manifests itself with canceled queries.
- Fix excessive GC overhead caused by captured lambda expressions.
- Reduce the memory usage of map/array aggregation functions.
- Redact sensitive config property values in the server log.
- Update timezone database to version 2017b.
- Add
repeat() function.
- Add
crc32() function.
- Add file based global security, which can be configured with the
etc/access-control.properties
and security.config-file config properties. See Built-in System Access Control
for more details.
- Add support for configuring query runtime and queueing time limits to resource groups.
Hive Changes
- Fail queries that access encrypted S3 objects that do not have their unencrypted content lengths set in their metadata.
JDBC Driver Changes
- Add support for setting query timeout through
Statement.setQueryTimeout().
SPI Changes
- Add grantee and revokee to
GRANT and REVOKE security checks.