• Add EXISTS as an acceptable keyword in conditions.

• Handle backslashes separately for SqlParser\Utils\BufferedQuery. Fixes a bug where backslashes in combination with strings weren't handled properly.

Breaking changes:

• SqlParser\Components\Reference::$table is now an instance of SqlParser\Components\Expression to support references from other tables.

• Add definitions for all JOIN clauses.

• Properly parse options when the value of the option is '='.

• Only RANGE and LIST type partitions support VALUES.

• Added utilities for handling tokens and tokens list.

• Added missing NOT IN operator. This caused troubles when parsing conditions that contained the NOT IN operator.

• Added support for OUTER as an optional keyword in joins.

• Fixed a bug related to (sub)partitions options not being included in the built component. Also, the option ENGINE was unrecognized.