PG_TS_PARSER
PG_TS_PARSER 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.
Name | Type | Reference | Description |
|---|---|---|---|
oid | oid | - | Row identifier (hidden attribute, which must be specified) |
prsname | name | - | Text search parser name |
prsnamespace | oid | PG_NAMESPACE.oid | OID of the namespace that contains the parser |
prsstart | regproc | PG_PROC.proname | Name of the parser's startup function |
prstoken | regproc | PG_PROC.proname | Name of the parser's next-token function |
prsend | regproc | PG_PROC.proname | Name of the parser's shutdown function |
prsheadline | regproc | PG_PROC.proname | Name of the parser's headline function |
prslextype | regproc | PG_PROC.proname | Name of the parser's lextype function |
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