PG_TS_PARSER¶
PG_TS_PARSER records entries defining text search parsers. A parser splits input text into lexemes and assigns a token type to each lexeme. Since a parser must be implemented by C functions, parsers can be created only by database administrators.
Name | Type | Reference | Description |
|---|---|---|---|
oid | oid |
| Row identifier (hidden attribute; must be explicitly selected) |
prsname | name |
| Text search parser name |
prsnamespace | oid | PG_NAMESPACE.oid | OID of the namespace that contains the 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 |