database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-16 06:01:02 +03:00
Code Activity

Phase 2 of read-only-plans project: restructure expression-tree nodes

Browse Source 
so that all executable expression nodes inherit from a common supertype
Expr.  This is somewhat of an exercise in code purity rather than any
real functional advance, but getting rid of the extra Oper or Func node
formerly used in each operator or function call should provide at least
a little space and speed improvement.
initdb forced by changes in stored-rules representation.
This commit is contained in:
Tom Lane
2002-12-12 15:49:42 +00:00
parent debb072886
commit a0bf885f9e
69 changed files with 3390 additions and 3433 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
src/backend/utils/adt/selfuncs.c
View File

@ -15,7 +15,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/selfuncs.c,v 1.122 2002/11/25 21:29:42 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/selfuncs.c,v 1.123 2002/12/12 15:49:40 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -1025,7 +1025,7 @@ booltestsel(Query *root, BoolTestType booltesttype, Node *arg, int varRelid)
* can't hurt)
*/
if (IsA(arg, RelabelType))
arg = ((RelabelType *) arg)->arg;
arg = (Node *) ((RelabelType *) arg)->arg;
if (IsA(arg, Var) &&(varRelid == 0 || varRelid == ((Var *) arg)->varno))
var = (Var *) arg;
@ -1246,7 +1246,7 @@ nulltestsel(Query *root, NullTestType nulltesttype, Node *arg, int varRelid)
* Ignore any binary-compatible relabeling
*/
if (IsA(arg, RelabelType))
arg = ((RelabelType *) arg)->arg;
arg = (Node *) ((RelabelType *) arg)->arg;
if (IsA(arg, Var) &&
(varRelid == 0 || varRelid == ((Var *) arg)->varno))
@ -1753,14 +1753,15 @@ mergejoinscansel(Query *root, Node *clause,
/* Deconstruct the merge clause */
if (!is_opclause(clause))
return; /* shouldn't happen */
opno = ((Oper *) ((Expr *) clause)->oper)->opno;
opno = ((OpExpr *) clause)->opno;
left = get_leftop((Expr *) clause);
right = get_rightop((Expr *) clause);
if (!right)
return; /* shouldn't happen */
/* Can't do anything if inputs are not Vars */
if (!IsA(left, Var) ||!IsA(right, Var))
if (!IsA(left, Var) ||
!IsA(right, Var))
return;
/* Verify mergejoinability and get left and right "<" operators */
@ -2842,9 +2843,9 @@ get_restriction_var(List *args,
/* Ignore any binary-compatible relabeling */
if (IsA(left, RelabelType))
left = ((RelabelType *) left)->arg;
left = (Node *) ((RelabelType *) left)->arg;
if (IsA(right, RelabelType))
right = ((RelabelType *) right)->arg;
right = (Node *) ((RelabelType *) right)->arg;
/* Look for the var */
@ -2895,9 +2896,9 @@ get_join_vars(List *args, Var **var1, Var **var2)
/* Ignore any binary-compatible relabeling */
if (IsA(left, RelabelType))
left = ((RelabelType *) left)->arg;
left = (Node *) ((RelabelType *) left)->arg;
if (IsA(right, RelabelType))
right = ((RelabelType *) right)->arg;
right = (Node *) ((RelabelType *) right)->arg;
if (IsA(left, Var))
*var1 = (Var *) left;