# Presto 316 Documentation

## 12.100. Release 0.144

Warning

Querying bucketed tables in the Hive connector may produce incorrect results. This is fixed in Release 0.144.1, and Release 0.145.

## General Changes

- Fix already exists check when adding a column to be case-insensitive.
- Fix correctness issue when complex grouping operations have a partitioned source.
- Fix missing coercion when using `INSERT` with `NULL` literals.
- Fix regression that the queries fail when aggregation functions present in `AT TIME ZONE`.
- Fix potential memory starvation when a query is run with `resource_overcommit=true`.
- Queries run with `resource_overcommit=true` may now be killed before they reach `query.max-memory` if the cluster is low on memory.
- Discard output stage JSON from completion event when it is very long. This limit can be configured with `event.max-output-stage-size`.
- Add support for EXPLAIN ANALYZE.
- Change `infoUri` field of `/v1/statement` to point to query HTML page instead of JSON.
- Improve performance when processing results in CLI and JDBC driver.
- Improve performance of `GROUP BY` queries.

## Hive Changes

- Fix ORC reader to actually use `hive.orc.stream-buffer-size` configuration property.
- Add support for creating and inserting into bucketed tables.