diff options
Diffstat (limited to 'src/backend/optimizer/path/costsize.c')
| -rw-r--r-- | src/backend/optimizer/path/costsize.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/src/backend/optimizer/path/costsize.c b/src/backend/optimizer/path/costsize.c index 1f8dfa85478..6f16eb81dcd 100644 --- a/src/backend/optimizer/path/costsize.c +++ b/src/backend/optimizer/path/costsize.c @@ -59,7 +59,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/path/costsize.c,v 1.217 2010/04/19 00:55:25 rhaas Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/path/costsize.c,v 1.218 2010/07/06 19:18:56 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -1854,8 +1854,8 @@ cost_mergejoin(MergePath *path, PlannerInfo *root, SpecialJoinInfo *sjinfo) cpu_operator_cost * inner_path_rows * rescanratio; /* - * Prefer materializing if it looks cheaper, unless the user has asked - * to suppress materialization. + * Prefer materializing if it looks cheaper, unless the user has asked to + * suppress materialization. */ if (enable_material && mat_inner_cost < bare_inner_cost) path->materialize_inner = true; @@ -1872,9 +1872,9 @@ cost_mergejoin(MergePath *path, PlannerInfo *root, SpecialJoinInfo *sjinfo) * selected as the input of a mergejoin, and they don't support * mark/restore at present. * - * We don't test the value of enable_material here, because materialization - * is required for correctness in this case, and turning it off does not - * entitle us to deliver an invalid plan. + * We don't test the value of enable_material here, because + * materialization is required for correctness in this case, and turning + * it off does not entitle us to deliver an invalid plan. */ else if (innersortkeys == NIL && !ExecSupportsMarkRestore(inner_path->pathtype)) @@ -1887,8 +1887,9 @@ cost_mergejoin(MergePath *path, PlannerInfo *root, SpecialJoinInfo *sjinfo) * We don't try to adjust the cost estimates for this consideration, * though. * - * Since materialization is a performance optimization in this case, rather - * than necessary for correctness, we skip it if enable_material is off. + * Since materialization is a performance optimization in this case, + * rather than necessary for correctness, we skip it if enable_material is + * off. */ else if (enable_material && innersortkeys != NIL && relation_byte_size(inner_path_rows, inner_path->parent->width) > |