# Presto 316 Documentation

## 12.155. Release 0.89

## DATE Type

The memory representation of dates is now the number of days since January 1, 1970 using a 32-bit signed integer.

Note

This is a backwards incompatible change with the previous date representation, so if you have written a connector, you will need to update your code before deploying this release.

## General Changes

- `USE CATALOG` and `USE SCHEMA` have been replaced with USE.
- Fix issue where `SELECT NULL` incorrectly returns 0 rows.
- Fix rare condition where `JOIN` queries could produce incorrect results.
- Fix issue where `UNION` queries involving complex types would fail during planning.