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Extended query protocol: parse, bind, execute, describe FE/BE messages.

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Only lightly tested as yet, since libpq doesn't know anything about 'em.
This commit is contained in:
Tom Lane
2003-05-05 00:44:56 +00:00
parent a59793f82c
commit 16503e6fa4
17 changed files with 1336 additions and 268 deletions
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15
src/backend/utils/mmgr/portalmem.c
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@@ -12,7 +12,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/mmgr/portalmem.c,v 1.56 2003/05/02 20:54:35 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/mmgr/portalmem.c,v 1.57 2003/05/05 00:44:56 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -222,11 +222,12 @@ CreateNewPortal(void)
* PortalDefineQuery
* A simple subroutine to establish a portal's query.
*
* Notes: the passed commandTag must be a pointer to a constant string,
* since it is not copied. The caller is responsible for ensuring that
* the passed sourceText (if any), parse and plan trees have adequate
* lifetime. Also, queryContext must accurately describe the location
* of the parse and plan trees.
* Notes: commandTag shall be NULL if and only if the original query string
* (before rewriting) was an empty string. Also, the passed commandTag must
* be a pointer to a constant string, since it is not copied. The caller is
* responsible for ensuring that the passed sourceText (if any), parse and
* plan trees have adequate lifetime. Also, queryContext must accurately
* describe the location of the parse and plan trees.
*/
void
PortalDefineQuery(Portal portal,
@@ -241,6 +242,8 @@ PortalDefineQuery(Portal portal,
Assert(length(parseTrees) == length(planTrees));
Assert(commandTag != NULL || parseTrees == NIL);
portal->sourceText = sourceText;
portal->commandTag = commandTag;
portal->parseTrees = parseTrees;