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Fix the mechanism for reporting the original table OID and column number

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of columns of a query result so that it can "see through" cursors and
prepared statements.  Per gripe a couple months back from John DeSoi.
This commit is contained in:
Tom Lane
2005-06-22 17:45:46 +00:00
parent 84d73a6dbc
commit e98edb5555
6 changed files with 121 additions and 34 deletions
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25
src/backend/tcop/postgres.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/tcop/postgres.c,v 1.449 2005/06/17 22:32:46 tgl Exp $
* $PostgreSQL: pgsql/src/backend/tcop/postgres.c,v 1.450 2005/06/22 17:45:45 tgl Exp $
*
* NOTES
* this is the "main" module of the postgres backend and
@@ -1928,15 +1928,9 @@ exec_describe_statement_message(const char *stmt_name)
*/
tupdesc = FetchPreparedStatementResultDesc(pstmt);
if (tupdesc)
{
List *targetlist;
if (ChoosePortalStrategy(pstmt->query_list) == PORTAL_ONE_SELECT)
targetlist = ((Query *) linitial(pstmt->query_list))->targetList;
else
targetlist = NIL;
SendRowDescriptionMessage(tupdesc, targetlist, NULL);
}
SendRowDescriptionMessage(tupdesc,
FetchPreparedStatementTargetList(pstmt),
NULL);
else
pq_putemptymessage('n'); /* NoData */
@@ -1962,16 +1956,9 @@ exec_describe_portal_message(const char *portal_name)
return; /* can't actually do anything... */
if (portal->tupDesc)
{
List *targetlist;
if (portal->strategy == PORTAL_ONE_SELECT)
targetlist = ((Query *) linitial(portal->parseTrees))->targetList;
else
targetlist = NIL;
SendRowDescriptionMessage(portal->tupDesc, targetlist,
SendRowDescriptionMessage(portal->tupDesc,
FetchPortalTargetList(portal),
portal->formats);
}
else
pq_putemptymessage('n'); /* NoData */
}