12.78. Release 0.158

Fix regression that could cause high CPU and heap usage on coordinatorwhen processing certain types of long running queries.
Fix incorrect pruning of output columns in .
Fix query failures for connectors that produce non-remotely accessible splits.
Fix non-linear performance issue when parsing certain SQL expressions.
Fix case-sensitivity issues when operating on columns of ROW data type.
Fix failure when creating views for tables names that need quoting.
Return from element_at() for out-of-range indices instead of failing.
Validate resource groups configuration file on startup to ensure that allselectors reference a configured resource group.
Add experimental on-disk merge sort for aggregations. This can be enabled withthe experimental.spill-enabled configuration flag.
Push down predicates for , TINYINT, SMALLINT and data types.

Add hidden $bucket column for bucketed tables thatcontains the bucket number for the current row.
Prevent inserting into non-managed (i.e., external) tables.