database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-30 21:42:05 +03:00
Code Activity

Second try at fixing join alias variables. Instead of attaching miscellaneous

Browse Source 
lists to join RTEs, attach a list of Vars and COALESCE expressions that will
replace the join's alias variables during planning.  This simplifies
flatten_join_alias_vars while still making it easy to fix up varno references
when transforming the query tree.  Add regression test cases for interactions
of subqueries with outer joins.
This commit is contained in:
Tom Lane
2002-04-28 19:54:29 +00:00
parent c8996f9c6b
commit 6c59886942
21 changed files with 624 additions and 653 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/backend/nodes/copyfuncs.c
View File

@ -15,7 +15,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.181 2002/04/24 02:48:54 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.182 2002/04/28 19:54:28 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -323,7 +323,6 @@ CopyJoinFields(Join *from, Join *newnode)
{
newnode->jointype = from->jointype;
Node_Copy(from, newnode, joinqual);
newnode->joinrti = from->joinrti;
/* subPlan list must point to subplans in the new subtree, not the old */
if (from->plan.subPlan != NIL)
newnode->plan.subPlan = nconc(newnode->plan.subPlan,
@ -1475,10 +1474,7 @@ _copyRangeTblEntry(RangeTblEntry *from)
newnode->relid = from->relid;
Node_Copy(from, newnode, subquery);
newnode->jointype = from->jointype;
newnode->joincoltypes = listCopy(from->joincoltypes);
newnode->joincoltypmods = listCopy(from->joincoltypmods);
newnode->joinleftcols = listCopy(from->joinleftcols);
newnode->joinrightcols = listCopy(from->joinrightcols);
Node_Copy(from, newnode, joinaliasvars);
Node_Copy(from, newnode, alias);
Node_Copy(from, newnode, eref);
newnode->inh = from->inh;