24th September 2020: PostgreSQL 13 Released!
Supported Versions: Current (13) / 12 / 11 / 10 / 9.6 / 9.5
Development Versions: devel
Unsupported versions: 9.4 / 9.3 / 9.2 / 9.1 / 9.0 / 8.4 / 8.3

51.60. 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 51.60. pg_ts_parser Columns

Column Type

Description

oid oid

Row identifier

prsname name

Text search parser name

prsnamespace oid (references pg_namespace.oid)

The OID of the namespace that contains this parser

prsstart regproc (references pg_proc.oid)

OID of the parser's startup function

prstoken regproc (references pg_proc.oid)

OID of the parser's next-token function

prsend regproc (references pg_proc.oid)

OID of the parser's shutdown function

prsheadline regproc (references pg_proc.oid)

OID of the parser's headline function

prslextype regproc (references pg_proc.oid)

OID of the parser's lextype function


Submit correction

If you see anything in the documentation that is not correct, does not match your experience with the particular feature or requires further clarification, please use this form to report a documentation issue.