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

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

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>PostgreSQL 8.3.8 Documentation</TH
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>DISCARD</H1
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><H2
>Name</H2
>DISCARD&nbsp;--&nbsp;discard session state</DIV
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><H2
>Synopsis</H2
><PRE
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>DISCARD { ALL | PLANS | TEMPORARY | TEMP }</PRE
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>Description</H2
><P
>   <TT
CLASS="COMMAND"
>DISCARD</TT
> releases internal resources associated with a
   database session. These resources are normally released at the end
   of the session.
  </P
><P
>   <TT
CLASS="COMMAND"
>DISCARD TEMP</TT
> drops all temporary tables created in the
   current session.  <TT
CLASS="COMMAND"
>DISCARD PLANS</TT
> releases all internally
   cached query plans.  <TT
CLASS="COMMAND"
>DISCARD ALL</TT
> resets a session to
   its original state, discarding temporary resources and resetting
   session-local configuration changes.
  </P
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><H2
>Parameters</H2
><P
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><DT
><TT
CLASS="LITERAL"
>TEMPORARY</TT
> or <TT
CLASS="LITERAL"
>TEMP</TT
></DT
><DD
><P
>      Drops all temporary tables created in the current session.
     </P
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><DT
><TT
CLASS="LITERAL"
>PLANS</TT
></DT
><DD
><P
>      Releases all cached query plans.
     </P
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><DT
><TT
CLASS="LITERAL"
>ALL</TT
></DT
><DD
><P
>      Releases all temporary resources associated with the current
      session and resets the session to its initial state.
      Currently, this has the same effect as executing the following sequence
      of statements:
</P><PRE
CLASS="PROGRAMLISTING"
>SET SESSION AUTHORIZATION DEFAULT;
RESET ALL;
DEALLOCATE ALL;
CLOSE ALL;
UNLISTEN *;
SELECT pg_advisory_unlock_all();
DISCARD PLANS;
DISCARD TEMP;</PRE
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     </P
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><H2
>Notes</H2
><P
>    <TT
CLASS="COMMAND"
>DISCARD ALL</TT
> cannot be executed inside a transaction block.
   </P
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><A
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><H2
>Compatibility</H2
><P
>   <TT
CLASS="COMMAND"
>DISCARD</TT
> is a <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> extension.
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