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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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21
src/backend/nodes/copyfuncs.c
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@ -15,7 +15,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.314 2005/08/01 04:03:56 tgl Exp $
* $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.315 2005/08/01 20:31:08 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -1589,6 +1589,18 @@ _copyDefElem(DefElem *from)
return newnode;
}
static LockingClause *
_copyLockingClause(LockingClause *from)
{
LockingClause *newnode = makeNode(LockingClause);
COPY_NODE_FIELD(lockedRels);
COPY_SCALAR_FIELD(forUpdate);
COPY_SCALAR_FIELD(nowait);
return newnode;
}
static Query *
_copyQuery(Query *from)
{
@ -1607,6 +1619,7 @@ _copyQuery(Query *from)
COPY_NODE_FIELD(jointree);
COPY_NODE_FIELD(rowMarks);
COPY_SCALAR_FIELD(forUpdate);
COPY_SCALAR_FIELD(rowNoWait);
COPY_NODE_FIELD(targetList);
COPY_NODE_FIELD(groupClause);
COPY_NODE_FIELD(havingQual);
@ -1675,8 +1688,7 @@ _copySelectStmt(SelectStmt *from)
COPY_NODE_FIELD(sortClause);
COPY_NODE_FIELD(limitOffset);
COPY_NODE_FIELD(limitCount);
COPY_NODE_FIELD(lockedRels);
COPY_SCALAR_FIELD(forUpdate);
COPY_NODE_FIELD(lockingClause);
COPY_SCALAR_FIELD(op);
COPY_SCALAR_FIELD(all);
COPY_NODE_FIELD(larg);
@ -3185,6 +3197,9 @@ copyObject(void *from)
case T_DefElem:
retval = _copyDefElem(from);
break;
case T_LockingClause:
retval = _copyLockingClause(from);
break;
case T_RangeTblEntry:
retval = _copyRangeTblEntry(from);
break;