PostgreSQL
53.62. 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 53.62. 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 |
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