| Type: | bool |
| Default: | off |
| Context: | user |
| Restart: | false |
| Since: | 9.5 |
When on, the parser will emit a warning for any construct that might have changed meanings since PostgreSQL 9.4 as a result of changes in operator precedence. This is useful for auditing applications to see if precedence changes have broken anything; but it is not meant to be kept turned on in production, since it will warn about some perfectly valid, standard-compliant SQL code. The default is off.
See sql-precedence for more information.
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