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><A
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>44.39. <TT
CLASS="STRUCTNAME"
>pg_ts_parser</TT
></A
></H1
><A
NAME="AEN71695"
></A
><P
>   The <TT
CLASS="STRUCTNAME"
>pg_ts_parser</TT
> 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.
  </P
><P
>   <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
>'s text search features are
   described at length in <A
HREF="textsearch.html"
>Chapter 12</A
>.
  </P
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><B
>Table 44-39. <TT
CLASS="STRUCTNAME"
>pg_ts_parser</TT
> Columns</B
></P
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><COL><COL><COL><COL><THEAD
><TR
><TH
>Name</TH
><TH
>Type</TH
><TH
>References</TH
><TH
>Description</TH
></TR
></THEAD
><TBODY
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>prsname</TT
></TD
><TD
><TT
CLASS="TYPE"
>name</TT
></TD
><TD
>&nbsp;</TD
><TD
>Text search parser name</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>prsnamespace</TT
></TD
><TD
><TT
CLASS="TYPE"
>oid</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
HREF="catalog-pg-namespace.html"
><TT
CLASS="STRUCTNAME"
>pg_namespace</TT
></A
>.oid</TT
></TD
><TD
>       The OID of the namespace that contains this parser
      </TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>prsstart</TT
></TD
><TD
><TT
CLASS="TYPE"
>regproc</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
HREF="catalog-pg-proc.html"
><TT
CLASS="STRUCTNAME"
>pg_proc</TT
></A
>.oid</TT
></TD
><TD
>OID of the parser's startup function</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>prstoken</TT
></TD
><TD
><TT
CLASS="TYPE"
>regproc</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
HREF="catalog-pg-proc.html"
><TT
CLASS="STRUCTNAME"
>pg_proc</TT
></A
>.oid</TT
></TD
><TD
>OID of the parser's next-token function</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>prsend</TT
></TD
><TD
><TT
CLASS="TYPE"
>regproc</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
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><TT
CLASS="STRUCTNAME"
>pg_proc</TT
></A
>.oid</TT
></TD
><TD
>OID of the parser's shutdown function</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>prsheadline</TT
></TD
><TD
><TT
CLASS="TYPE"
>regproc</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
HREF="catalog-pg-proc.html"
><TT
CLASS="STRUCTNAME"
>pg_proc</TT
></A
>.oid</TT
></TD
><TD
>OID of the parser's headline function</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>prslextype</TT
></TD
><TD
><TT
CLASS="TYPE"
>regproc</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
HREF="catalog-pg-proc.html"
><TT
CLASS="STRUCTNAME"
>pg_proc</TT
></A
>.oid</TT
></TD
><TD
>OID of the parser's lextype function</TD
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