Changeset: cc2ced1c5d03 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=cc2ced1c5d03
Modified Files:
sql/server/rel_optimizer.c
Branch: Oct2020
Log Message:
If table is readonly, then the empty evaluation can always be made
diffs (25 lines):
diff --git a/sql/server/rel_optimizer.c b/sql/server/rel_optimizer.c
--- a/sql/server/rel_optimizer.c
+++ b/sql/server/rel_optimizer.c
@@ -8949,8 +8949,8 @@ rel_merge_table_rewrite(visitor *v, sql_
int skip = 0;
list *exps = NULL;
- /* do not include empty
partitions. Don't skip when storage_based_opt is not applicable */
- if (v->storage_based_opt && pt
&& isTable(pt) && pt->access == TABLE_READONLY &&
!store_funcs.count_col(v->sql->session->tr, pt->columns.set->h->data, 1))
+ /* Do not include empty
partitions */
+ if (pt && isTable(pt) &&
pt->access == TABLE_READONLY && !store_funcs.count_col(v->sql->session->tr,
pt->columns.set->h->data, 1))
continue;
prel = rel_rename_part(v->sql,
prel, tname, t);
@@ -9537,8 +9537,8 @@ rel_remove_union_partitions(visitor *v,
static sql_rel *
optimize_rel(mvc *sql, sql_rel *rel, int *g_changes, int level, bool
value_based_opt, bool storage_based_opt)
{
- visitor v = { .sql = sql, .value_based_opt = value_based_opt,
storage_based_opt = storage_based_opt },
- ev = { .sql = sql, .value_based_opt = value_based_opt,
storage_based_opt = storage_based_opt };
+ visitor v = { .sql = sql, .value_based_opt = value_based_opt,
.storage_based_opt = storage_based_opt },
+ ev = { .sql = sql, .value_based_opt = value_based_opt,
.storage_based_opt = storage_based_opt };
global_props gp = (global_props) {.cnt = {0},};
rel_properties(sql, &gp, rel);
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