Full-Text Search in PostgreSQL: A Gentle Introduction
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DROP FULLTEXT PARSER

Name

DROP FULLTEXT PARSER -- remove a full-text parser

DROP FULLTEXT PARSER [IF EXISTS] prsname [ CASCADE | RESTRICT ];

DROP FULLTEXT PARSER removes full-text parser from the database. Only its owner may destroy a parser.

To drop a parser and all FTS objects, which depends on it, CASCADE must be specified.

IF EXISTS: Do not throw an error if the parser does not exist. A notice is issued in this case.
prsname: The name (optionally schema-qualified) of the parser to drop.
CASCADE: Automatically drop FTS objects that depend on the parser.
RESTRICT: Refuse to drop the parser if any objects depend on it. This is the default.

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