diff options
| author | Bruce Momjian | 2010-02-26 02:01:40 +0000 |
|---|---|---|
| committer | Bruce Momjian | 2010-02-26 02:01:40 +0000 |
| commit | 65e806cba1f0f154d51caa7478e7192ce58d1056 (patch) | |
| tree | 99a656d7b4ec6d038d4c24e07fadf75db4c37e79 /src/backend/optimizer/path/equivclass.c | |
| parent | 16040575a04486d8e0823b4e304f4933144baf90 (diff) | |
pgindent run for 9.0
Diffstat (limited to 'src/backend/optimizer/path/equivclass.c')
| -rw-r--r-- | src/backend/optimizer/path/equivclass.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/src/backend/optimizer/path/equivclass.c b/src/backend/optimizer/path/equivclass.c index a2b6319d5e7..75219d0f334 100644 --- a/src/backend/optimizer/path/equivclass.c +++ b/src/backend/optimizer/path/equivclass.c @@ -10,7 +10,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/path/equivclass.c,v 1.22 2010/01/02 16:57:46 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/path/equivclass.c,v 1.23 2010/02/26 02:00:44 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -115,14 +115,13 @@ process_equivalence(PlannerInfo *root, RestrictInfo *restrictinfo, item2_relids = restrictinfo->right_relids; /* - * Reject clauses of the form X=X. These are not as redundant as they + * Reject clauses of the form X=X. These are not as redundant as they * might seem at first glance: assuming the operator is strict, this is - * really an expensive way to write X IS NOT NULL. So we must not risk - * just losing the clause, which would be possible if there is already - * a single-element EquivalenceClass containing X. The case is not - * common enough to be worth contorting the EC machinery for, so just - * reject the clause and let it be processed as a normal restriction - * clause. + * really an expensive way to write X IS NOT NULL. So we must not risk + * just losing the clause, which would be possible if there is already a + * single-element EquivalenceClass containing X. The case is not common + * enough to be worth contorting the EC machinery for, so just reject the + * clause and let it be processed as a normal restriction clause. */ if (equal(item1, item2)) return false; /* X=X is not a useful equivalence */ @@ -367,7 +366,7 @@ add_eq_member(EquivalenceClass *ec, Expr *expr, Relids relids, * EquivalenceClass for it. * * sortref is the SortGroupRef of the originating SortGroupClause, if any, - * or zero if not. (It should never be zero if the expression is volatile!) + * or zero if not. (It should never be zero if the expression is volatile!) * * This can be used safely both before and after EquivalenceClass merging; * since it never causes merging it does not invalidate any existing ECs @@ -448,7 +447,7 @@ get_eclass_for_sort_expr(PlannerInfo *root, newec->ec_sortref = sortref; newec->ec_merged = NULL; - if (newec->ec_has_volatile && sortref == 0) /* should not happen */ + if (newec->ec_has_volatile && sortref == 0) /* should not happen */ elog(ERROR, "volatile EquivalenceClass has no sortref"); newem = add_eq_member(newec, expr, pull_varnos((Node *) expr), |