database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-18 17:42:25 +03:00
Code Activity

Make SELECT FOR UPDATE/SHARE work on inheritance trees, by having the plan

Browse Source 
return the tableoid as well as the ctid for any FOR UPDATE targets that
have child tables.  All child tables are listed in the ExecRowMark list,
but the executor just skips the ones that didn't produce the current row.

Curiously, this longstanding restriction doesn't seem to have been documented
anywhere; so no doc changes.
This commit is contained in:
Tom Lane
2008-11-15 19:43:47 +00:00
parent 07c179a82b
commit 0656ed3daa
15 changed files with 150 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/backend/parser/analyze.c
View File

@ -17,7 +17,7 @@
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/parser/analyze.c,v 1.382 2008/10/07 01:47:54 tgl Exp $
* $PostgreSQL: pgsql/src/backend/parser/analyze.c,v 1.383 2008/11/15 19:43:46 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -2049,8 +2049,10 @@ applyLockingClause(Query *qry, Index rtindex, bool forUpdate, bool noWait)
/* Make a new RowMarkClause */
rc = makeNode(RowMarkClause);
rc->rti = rtindex;
rc->prti = rtindex;
rc->forUpdate = forUpdate;
rc->noWait = noWait;
rc->isParent = false;
qry->rowMarks = lappend(qry->rowMarks, rc);
}