Release 0.126#
General#
Add error location information (line and column number) for semantic errors.
Fix a CLI crash during tab-completion when no schema is currently selected.
Fix reset of session properties in CLI when running USE.
Fix occasional query planning failure due to a bug in the projection push down optimizer.
Fix a parsing issue when expressions contain the form
POSITION(x in (y))
.Add a new version of
approx_percentile()
that takes anaccuracy
parameter.Allow specifying columns names in INSERT queries.
Add
field_length
table property to blackhole connector to control the size of generatedVARCHAR
andVARBINARY
fields.Bundle Teradata functions plugin in server package.
Improve handling of physical properties which can increase performance for queries involving window functions.
Add ability to control whether index join lookups and caching are shared within a task. This allows us to optimize for index cache hits or for more CPU parallelism. This option is toggled by the
task.share-index-loading
config property or thetask_share_index_loading
session property.Add Tableau web connector.
Improve performance of queries that use an
IN
expression with a large list of constant values.Enable connector predicate push down for all comparable and equatable types.
Fix query planning failure when using certain operations such as
GROUP BY
,DISTINCT
, etc. on the output columns ofUNNEST
.In
ExchangeClient
setmaxResponseSize
to be slightly smaller than the configured value. This reduces the possibility of encounteringPageTooLargeException
.Fix memory leak in coordinator.
Add validation for names of table properties.
Hive#
Fix reading structural types containing nulls in Parquet.
Fix writing DATE type when timezone offset is negative. Previous versions would write the wrong date (off by one day).
Fix an issue where
VARCHAR
columns added to an existing table could not be queried.Fix over-creation of initial splits.
Fix
hive.immutable-partitions
config property to also apply to unpartitioned tables.Allow non-
VARCHAR
columns inDELETE
query.Support
DATE
columns as partition columns in parquet tables.Improve error message for cases where partition columns are also table columns.