diff options
Diffstat (limited to 'src/backend/optimizer/path/allpaths.c')
| -rw-r--r-- | src/backend/optimizer/path/allpaths.c | 67 |
1 files changed, 35 insertions, 32 deletions
diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c index c835a954ed9..dc2a23bb273 100644 --- a/src/backend/optimizer/path/allpaths.c +++ b/src/backend/optimizer/path/allpaths.c @@ -176,41 +176,44 @@ set_rel_pathlist(PlannerInfo *root, RelOptInfo *rel, /* It's an "append relation", process accordingly */ set_append_rel_pathlist(root, rel, rti, rte); } - else if (rel->rtekind == RTE_SUBQUERY) - { - /* Subquery --- generate a separate plan for it */ - set_subquery_pathlist(root, rel, rti, rte); - } - else if (rel->rtekind == RTE_FUNCTION) - { - /* RangeFunction --- generate a suitable path for it */ - set_function_pathlist(root, rel, rte); - } - else if (rel->rtekind == RTE_VALUES) - { - /* Values list --- generate a suitable path for it */ - set_values_pathlist(root, rel, rte); - } - else if (rel->rtekind == RTE_CTE) - { - /* CTE reference --- generate a suitable path for it */ - if (rte->self_reference) - set_worktable_pathlist(root, rel, rte); - else - set_cte_pathlist(root, rel, rte); - } else { - Assert(rel->rtekind == RTE_RELATION); - if (get_rel_relkind(rte->relid) == RELKIND_FOREIGN_TABLE) - { - /* Foreign table */ - set_foreign_pathlist(root, rel, rte); - } - else + switch (rel->rtekind) { - /* Plain relation */ - set_plain_rel_pathlist(root, rel, rte); + case RTE_RELATION: + if (rte->relkind == RELKIND_FOREIGN_TABLE) + { + /* Foreign table */ + set_foreign_pathlist(root, rel, rte); + } + else + { + /* Plain relation */ + set_plain_rel_pathlist(root, rel, rte); + } + break; + case RTE_SUBQUERY: + /* Subquery --- generate a separate plan for it */ + set_subquery_pathlist(root, rel, rti, rte); + break; + case RTE_FUNCTION: + /* RangeFunction --- generate a suitable path for it */ + set_function_pathlist(root, rel, rte); + break; + case RTE_VALUES: + /* Values list --- generate a suitable path for it */ + set_values_pathlist(root, rel, rte); + break; + case RTE_CTE: + /* CTE reference --- generate a suitable path for it */ + if (rte->self_reference) + set_worktable_pathlist(root, rel, rte); + else + set_cte_pathlist(root, rel, rte); + break; + default: + elog(ERROR, "unexpected rtekind: %d", (int) rel->rtekind); + break; } } |