MonetDB: const_aggr_elim - declare optimizer function

[Wolf Schulz via checkin-list]

Changeset: 8ed0a2c782b8 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/8ed0a2c782b8
Modified Files:
        sql/server/rel_optimize_proj.c
Branch: const_aggr_elim
Log Message:

declare optimizer function


diffs (28 lines):

diff --git a/sql/server/rel_optimize_proj.c b/sql/server/rel_optimize_proj.c
--- a/sql/server/rel_optimize_proj.c
+++ b/sql/server/rel_optimize_proj.c
@@ -3022,6 +3022,15 @@ rel_project_select_exp(visitor *v, sql_r
        return rel;
 }
 
+
+static inline sql_rel *
+rel_const_aggr_elimination(visitor *v, sql_rel *rel)
+{
+       (void)v;
+
+       return rel;
+}
+
 static sql_rel *
 rel_optimize_projections_(visitor *v, sql_rel *rel)
 {
@@ -3043,6 +3052,8 @@ rel_optimize_projections_(visitor *v, sq
        rel = rel_distinct_aggregate_on_unique_values(v, rel);
        rel = rel_groupby_distinct(v, rel);
        rel = rel_push_count_down(v, rel);
+       rel = rel_const_aggr_elimination(v, rel);
+
        /* only when value_based_opt is on, ie not for dependency resolution */
        if (v->value_based_opt) {
                rel = rel_simplify_count(v, rel);
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