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Add NOWAIT option to SELECT FOR UPDATE/SHARE.

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Original patch by Hans-Juergen Schoenig, revisions by Karel Zak
and Tom Lane.
This commit is contained in:
Tom Lane
2005-08-01 20:31:16 +00:00
parent ca7abcd89d
commit 2a4fad1a0e
28 changed files with 387 additions and 157 deletions
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8
src/backend/parser/parse_relation.c
View File

@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/parse_relation.c,v 1.112 2005/06/28 05:08:58 tgl Exp $
* $PostgreSQL: pgsql/src/backend/parser/parse_relation.c,v 1.113 2005/08/01 20:31:10 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -903,9 +903,9 @@ isLockedRel(ParseState *pstate, char *refname)
/* Outer loop to check parent query levels as well as this one */
while (pstate != NULL)
{
if (pstate->p_lockedRels != NIL)
if (pstate->p_locking_clause)
{
if (linitial(pstate->p_lockedRels) == NULL)
if (pstate->p_locking_clause->lockedRels == NIL)
{
/* all tables used in query */
return true;
@@ -915,7 +915,7 @@ isLockedRel(ParseState *pstate, char *refname)
/* just the named tables */
ListCell *l;
foreach(l, pstate->p_lockedRels)
foreach(l, pstate->p_locking_clause->lockedRels)
{
char *rname = strVal(lfirst(l));