# Presto 316 Documentation

## 12.18. Release 0.215

## General Changes

- Fix regression in 0.214 that could cause queries to produce incorrect results for queries using map types.
- Fix reporting of the processed input data for source stages in `EXPLAIN ANALYZE`.
- Fail queries that use non-leaf resource groups. Previously, they would remain queued forever.
- Improve CPU usage for specific queries (#11757).
- Extend stats and cost model to support `row_number()` window function estimates.
- Improve the join type selection and the reordering of join sides for cases where the join output size cannot be estimated.
- Add dynamic scheduling support to grouped execution. When a stage is executed with grouped execution and the stage has no remote sources, table partitions can be scheduled to tasks in a dynamic way, which can help mitigating skew for queries using grouped execution. This feature can be enabled with the `dynamic_schedule_for_grouped_execution` session property or the `dynamic-schedule-for-grouped-execution` config property.
- Add `beta_cdf()` and `inverse_beta_cdf()` functions.
- Split the reporting of raw input data and processed input data for source operators.
- Remove collection and reporting of raw input data statistics for the `Values`, `Local Exchange`, and `Local Merge Sort` operators.
- Simplify `EXPLAIN (TYPE IO)` output when there are too many discrete components. This avoids large output at the cost of reduced granularity.
- Add `parse_presto_data_size()` function.
- Add support for `UNION ALL` to optimizer’s cost model.
- Add support for estimating the cost of filters by using a default filter factor. The default value for the filter factor can be configured with the `default_filter_factor_enabled` session property or the `optimizer.default-filter-factor-enabled`.

## Geospatial Changes

- Add input validation checks to `ST_LineString()` to conform with the specification.
- Improve spatial join performance.
- Enable spatial joins for join conditions expressed with the `ST_Within()` function.

## Web UI Changes

- Fix Capture Snapshot button for showing current thread stacks.
- Fix dropdown for expanding stage skew component on the query details page.
- Improve the performance of the thread snapshot component on the worker status page.
- Make the reporting of Cumulative Memory usage consistent on the query list and query details pages.
- Remove legacy thread UI.

## Hive Changes

- Add predicate pushdown support for the `DATE` type to the Parquet reader. This change also fixes a bug that may cause queries with predicates on `DATE` columns to fail with type mismatch errors.

## Redis Changes

- Prevent printing the value of the `redis.password` configuration property to log files.