database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-05 07:21:24 +03:00
Code Activity

Phase 3 of read-only-plans project: ExecInitExpr now builds expression

Browse Source 
execution state trees, and ExecEvalExpr takes an expression state tree
not an expression plan tree.  The plan tree is now read-only as far as
the executor is concerned.  Next step is to begin actually exploiting
this property.
This commit is contained in:
Tom Lane
2002-12-13 19:46:01 +00:00
parent 77b7a740f9
commit 3a4f7dde16
49 changed files with 993 additions and 815 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
src/backend/executor/nodeHash.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/nodeHash.c,v 1.69 2002/12/05 15:50:33 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/nodeHash.c,v 1.70 2002/12/13 19:45:52 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -76,7 +76,7 @@ ExecHash(HashState *node)
/*
* set expression context
*/
hashkeys = ((Hash *) node->ps.plan)->hashkeys;
hashkeys = node->hashkeys;
econtext = node->ps.ps_ExprContext;
/*
@ -138,10 +138,10 @@ ExecInitHash(Hash *node, EState *estate)
* initialize child expressions
*/
hashstate->ps.targetlist = (List *)
ExecInitExpr((Node *) node->plan.targetlist,
ExecInitExpr((Expr *) node->plan.targetlist,
(PlanState *) hashstate);
hashstate->ps.qual = (List *)
ExecInitExpr((Node *) node->plan.qual,
ExecInitExpr((Expr *) node->plan.qual,
(PlanState *) hashstate);
/*
@ -554,7 +554,8 @@ ExecHashGetBucket(HashJoinTable hashtable,
/*
* Get the join attribute value of the tuple
*/
keyval = ExecEvalExpr(lfirst(hk), econtext, &isNull, NULL);
keyval = ExecEvalExpr((ExprState *) lfirst(hk),
econtext, &isNull, NULL);
/*
* Compute the hash function