52.62. 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 52.62. pg_ts_parser Columns

   Column Type

   Description

   oid oid

   Row identifier

   prsname name

   Text search parser name

   prsnamespace oid (references pg_namespace.oid)

   The OID of the namespace that contains this parser

   prsstart regproc (references pg_proc.oid)

   OID of the parser's startup function

   prstoken regproc (references pg_proc.oid)

   OID of the parser's next-token function

   prsend regproc (references pg_proc.oid)

   OID of the parser's shutdown function

   prsheadline regproc (references pg_proc.oid)

   OID of the parser's headline function (zero if none)

   prslextype regproc (references pg_proc.oid)

   OID of the parser's lextype function