12th September 2019: PostgreSQL 12 Beta 4 Released!
Supported Versions: Current (11) / 10 / 9.6 / 9.5 / 9.4
Development Versions: 12 / devel
Unsupported versions: 9.3 / 9.2 / 9.1 / 9.0 / 8.4 / 8.3
This documentation is for an unsupported version of PostgreSQL.
You may want to view the same page for the current version, or one of the supported versions listed above instead.

45.42. pg_ts_parser

The pg_ts_parser catalog contains entries defining text search parsers. A parser is responsible for splitting input text into lexemes and assigning a token type to each lexeme. Since a parser must be implemented by C-language-level functions, creation of new parsers is restricted to database superusers.

PostgreSQL's text search features are described at length in Chapter 12.

Table 45-42. pg_ts_parser Columns

Name Type References Description
prsname name   Text search parser name
prsnamespace oid pg_namespace.oid The OID of the namespace that contains this parser
prsstart regproc pg_proc.oid OID of the parser's startup function
prstoken regproc pg_proc.oid OID of the parser's next-token function
prsend regproc pg_proc.oid OID of the parser's shutdown function
prsheadline regproc pg_proc.oid OID of the parser's headline function
prslextype regproc pg_proc.oid OID of the parser's lextype function