diff options
Diffstat (limited to 'src/backend/optimizer/util/var.c')
| -rw-r--r-- | src/backend/optimizer/util/var.c | 38 |
1 files changed, 18 insertions, 20 deletions
diff --git a/src/backend/optimizer/util/var.c b/src/backend/optimizer/util/var.c index abd01ca157a..dc1004cbd0e 100644 --- a/src/backend/optimizer/util/var.c +++ b/src/backend/optimizer/util/var.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/util/var.c,v 1.65 2005/06/05 22:32:56 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/util/var.c,v 1.66 2005/10/15 02:49:21 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -88,8 +88,8 @@ pull_varnos(Node *node) context.sublevels_up = 0; /* - * Must be prepared to start with a Query or a bare expression tree; - * if it's a Query, we don't want to increment sublevels_up. + * Must be prepared to start with a Query or a bare expression tree; if + * it's a Query, we don't want to increment sublevels_up. */ query_or_expression_tree_walker(node, pull_varnos_walker, @@ -149,8 +149,8 @@ contain_var_reference(Node *node, int varno, int varattno, int levelsup) context.sublevels_up = levelsup; /* - * Must be prepared to start with a Query or a bare expression tree; - * if it's a Query, we don't want to increment sublevels_up. + * Must be prepared to start with a Query or a bare expression tree; if + * it's a Query, we don't want to increment sublevels_up. */ return query_or_expression_tree_walker(node, contain_var_reference_walker, @@ -215,8 +215,7 @@ contain_var_clause_walker(Node *node, void *context) if (IsA(node, Var)) { if (((Var *) node)->varlevelsup == 0) - return true; /* abort the tree traversal and return - * true */ + return true; /* abort the tree traversal and return true */ return false; } return expression_tree_walker(node, contain_var_clause_walker, context); @@ -286,7 +285,7 @@ contain_vars_above_level(Node *node, int levelsup) int sublevels_up = levelsup; return query_or_expression_tree_walker(node, - contain_vars_above_level_walker, + contain_vars_above_level_walker, (void *) &sublevels_up, 0); } @@ -370,8 +369,8 @@ find_minimum_var_level_walker(Node *node, context->min_varlevel = varlevelsup; /* - * As soon as we find a local variable, we can abort the - * tree traversal, since min_varlevel is then certainly 0. + * As soon as we find a local variable, we can abort the tree + * traversal, since min_varlevel is then certainly 0. */ if (varlevelsup == 0) return true; @@ -380,10 +379,9 @@ find_minimum_var_level_walker(Node *node, } /* - * An Aggref must be treated like a Var of its level. Normally we'd - * get the same result from looking at the Vars in the aggregate's - * argument, but this fails in the case of a Var-less aggregate call - * (COUNT(*)). + * An Aggref must be treated like a Var of its level. Normally we'd get + * the same result from looking at the Vars in the aggregate's argument, + * but this fails in the case of a Var-less aggregate call (COUNT(*)). */ if (IsA(node, Aggref)) { @@ -400,8 +398,8 @@ find_minimum_var_level_walker(Node *node, context->min_varlevel = agglevelsup; /* - * As soon as we find a local aggregate, we can abort the - * tree traversal, since min_varlevel is then certainly 0. + * As soon as we find a local aggregate, we can abort the tree + * traversal, since min_varlevel is then certainly 0. */ if (agglevelsup == 0) return true; @@ -553,8 +551,8 @@ flatten_join_alias_vars_mutator(Node *node, newvar = (Node *) list_nth(rte->joinaliasvars, var->varattno - 1); /* - * If we are expanding an alias carried down from an upper query, - * must adjust its varlevelsup fields. + * If we are expanding an alias carried down from an upper query, must + * adjust its varlevelsup fields. */ if (context->sublevels_up != 0) { @@ -570,8 +568,8 @@ flatten_join_alias_vars_mutator(Node *node, InClauseInfo *ininfo; ininfo = (InClauseInfo *) expression_tree_mutator(node, - flatten_join_alias_vars_mutator, - (void *) context); + flatten_join_alias_vars_mutator, + (void *) context); /* now fix InClauseInfo's relid sets */ if (context->sublevels_up == 0) { |