PG_TS_PARSER
PG_TS_PARSER contains definition of text search parsers. A parser is responsible for splitting input text into lexemes and assigning a token type to each lexeme. Because the parser must be implemented through functions at the C language level, the new parser must be created by the database system administrator.
| Name | Type | Reference | Description |
|---|---|---|---|
| oid | oid | - | Row identifier (hidden attribute, which must be specified). |
| prsname | name | - | Text search parser name. |
| prsnamespace | oid | oid in PG_NAMESPACE | OID of the namespace that contains the parser. |
| prsstart | regproc | proname in PG_PROC | Name of the parser's startup function. |
| prstoken | regproc | proname in PG_PROC | Name of the parser's next-token function. |
| prsend | regproc | proname in PG_PROC | Name of the parser's shutdown function. |
| prsheadline | regproc | proname in PG_PROC | Name of the parser's headline function. |
| prslextype | regproc | proname in PG_PROC | Name of the parser's lextype function. |
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