Sophie: postgresql8.3-docs-8.3.8-1mdv2010.0 i586

postgresql8.3-docs-8.3.8-1mdv2010.0.i586.rpm

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NAME="CATALOG-PG-AMOP"
>44.4. <TT
CLASS="STRUCTNAME"
>pg_amop</TT
></A
></H1
><A
NAME="AEN68298"
></A
><P
>   The catalog <TT
CLASS="STRUCTNAME"
>pg_amop</TT
> stores information about
   operators associated with access method operator families.  There is one
   row for each operator that is a member of an operator family.  An operator
   can appear in more than one family, but cannot appear in more than one
   position within a family.
  </P
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><B
>Table 44-4. <TT
CLASS="STRUCTNAME"
>pg_amop</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"
>amopfamily</TT
></TD
><TD
><TT
CLASS="TYPE"
>oid</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
HREF="catalog-pg-opfamily.html"
><TT
CLASS="STRUCTNAME"
>pg_opfamily</TT
></A
>.oid</TT
></TD
><TD
>The operator family this entry is for</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>amoplefttype</TT
></TD
><TD
><TT
CLASS="TYPE"
>oid</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
HREF="catalog-pg-type.html"
><TT
CLASS="STRUCTNAME"
>pg_type</TT
></A
>.oid</TT
></TD
><TD
>Left-hand input data type of operator</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>amoprighttype</TT
></TD
><TD
><TT
CLASS="TYPE"
>oid</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
HREF="catalog-pg-type.html"
><TT
CLASS="STRUCTNAME"
>pg_type</TT
></A
>.oid</TT
></TD
><TD
>Right-hand input data type of operator</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>amopstrategy</TT
></TD
><TD
><TT
CLASS="TYPE"
>int2</TT
></TD
><TD
>&nbsp;</TD
><TD
>Operator strategy number</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>amopreqcheck</TT
></TD
><TD
><TT
CLASS="TYPE"
>bool</TT
></TD
><TD
>&nbsp;</TD
><TD
>Index hit must be rechecked</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>amopopr</TT
></TD
><TD
><TT
CLASS="TYPE"
>oid</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
HREF="catalog-pg-operator.html"
><TT
CLASS="STRUCTNAME"
>pg_operator</TT
></A
>.oid</TT
></TD
><TD
>OID of the operator</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>amopmethod</TT
></TD
><TD
><TT
CLASS="TYPE"
>oid</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
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><TT
CLASS="STRUCTNAME"
>pg_am</TT
></A
>.oid</TT
></TD
><TD
>Index access method operator family is for</TD
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><P
>   An entry's <TT
CLASS="STRUCTFIELD"
>amopmethod</TT
> must match the
   <TT
CLASS="STRUCTNAME"
>opfmethod</TT
> of its containing operator family (including
   <TT
CLASS="STRUCTFIELD"
>amopmethod</TT
> here is an intentional denormalization of the
   catalog structure for performance reasons).  Also,
   <TT
CLASS="STRUCTFIELD"
>amoplefttype</TT
> and <TT
CLASS="STRUCTFIELD"
>amoprighttype</TT
> must match
   the <TT
CLASS="STRUCTFIELD"
>oprleft</TT
> and <TT
CLASS="STRUCTFIELD"
>oprright</TT
> fields of the
   referenced <TT
CLASS="STRUCTNAME"
>pg_operator</TT
> entry.
  </P
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