51.62. pg_ts_parser#
Thepg_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 inChapter 12.
Table 51.62. pg_ts_parser Columns
Column Type Description |
|---|
Row identifier |
Text search parser name |
The OID of the namespace that contains this parser |
OID of the parser's startup function |
OID of the parser's next-token function |
OID of the parser's shutdown function |
OID of the parser's headline function (zero if none) |
OID of the parser's lextype function |