diff options
Diffstat (limited to 'src/backend/optimizer/prep/prepjointree.c')
| -rw-r--r-- | src/backend/optimizer/prep/prepjointree.c | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/src/backend/optimizer/prep/prepjointree.c b/src/backend/optimizer/prep/prepjointree.c index 32853f78bc2..af53c4592cc 100644 --- a/src/backend/optimizer/prep/prepjointree.c +++ b/src/backend/optimizer/prep/prepjointree.c @@ -16,7 +16,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/prep/prepjointree.c,v 1.22 2004/08/29 04:12:34 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/prep/prepjointree.c,v 1.23 2004/08/29 05:06:44 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -46,7 +46,7 @@ typedef struct reduce_outer_joins_state static bool is_simple_subquery(Query *subquery); static bool has_nullable_targetlist(Query *subquery); static void resolvenew_in_jointree(Node *jtnode, int varno, - List *rtable, List *subtlist); + List *rtable, List *subtlist); static reduce_outer_joins_state *reduce_outer_joins_pass1(Node *jtnode); static void reduce_outer_joins_pass2(Node *jtnode, reduce_outer_joins_state *state, @@ -151,8 +151,8 @@ pull_up_subqueries(Query *parse, Node *jtnode, bool below_outer_join) * entries for upper Var references would do the wrong thing (the * results wouldn't become NULL when they're supposed to). * - * XXX This could be improved by generating pseudo-variables for - * such expressions; we'd have to figure out how to get the pseudo- + * XXX This could be improved by generating pseudo-variables for such + * expressions; we'd have to figure out how to get the pseudo- * variables evaluated at the right place in the modified plan * tree. Fix it someday. */ @@ -167,23 +167,23 @@ pull_up_subqueries(Query *parse, Node *jtnode, bool below_outer_join) /* * Need a modifiable copy of the subquery to hack on. Even if * we didn't sometimes choose not to pull up below, we must do - * this to avoid problems if the same subquery is referenced from - * multiple jointree items (which can't happen normally, but might - * after rule rewriting). + * this to avoid problems if the same subquery is referenced + * from multiple jointree items (which can't happen normally, + * but might after rule rewriting). */ subquery = copyObject(subquery); /* - * Pull up any IN clauses within the subquery's WHERE, - * so that we don't leave unoptimized INs behind. + * Pull up any IN clauses within the subquery's WHERE, so that + * we don't leave unoptimized INs behind. */ if (subquery->hasSubLinks) subquery->jointree->quals = pull_up_IN_clauses(subquery, subquery->jointree->quals); /* - * Recursively pull up the subquery's subqueries, so that - * this routine's processing is complete for its jointree and + * Recursively pull up the subquery's subqueries, so that this + * routine's processing is complete for its jointree and * rangetable. * * Note: 'false' is correct here even if we are within an outer @@ -213,9 +213,9 @@ pull_up_subqueries(Query *parse, Node *jtnode, bool below_outer_join) * Give up, return unmodified RangeTblRef. * * Note: The work we just did will be redone when the - * subquery gets planned on its own. Perhaps we could avoid - * that by storing the modified subquery back into the - * rangetable, but I'm not gonna risk it now. + * subquery gets planned on its own. Perhaps we could + * avoid that by storing the modified subquery back into + * the rangetable, but I'm not gonna risk it now. */ return jtnode; } @@ -277,8 +277,8 @@ pull_up_subqueries(Query *parse, Node *jtnode, bool below_outer_join) /* * Pull up any FOR UPDATE markers, too. (OffsetVarNodes - * already adjusted the marker values, so just list_concat - * the list.) + * already adjusted the marker values, so just list_concat the + * list.) */ parse->rowMarks = list_concat(parse->rowMarks, subquery->rowMarks); @@ -939,7 +939,7 @@ simplify_jointree(Query *parse, Node *jtnode) * lists. NOTE: we put the pulled-up quals first. */ f->quals = (Node *) list_concat((List *) subf->quals, - (List *) f->quals); + (List *) f->quals); } else newlist = lappend(newlist, child); @@ -1000,14 +1000,14 @@ simplify_jointree(Query *parse, Node *jtnode) f->fromlist = list_concat(f->fromlist, subf->fromlist); f->quals = (Node *) list_concat((List *) f->quals, - (List *) subf->quals); + (List *) subf->quals); } else f->fromlist = lappend(f->fromlist, j->rarg); /* pulled-up quals first */ f->quals = (Node *) list_concat((List *) f->quals, - (List *) j->quals); + (List *) j->quals); return (Node *) f; } |