[Optimize][Set Operation Node] Reduce the memory expansion operation of the hash table in ExceptNode and IntersectNode (#6915)

Reduce the memory expansion operation of the hash table in ExceptNode and IntersectNode
2021-11-12 10:39:59 +08:00
parent 35da149ebe
commit 047b83b987
6 changed files with 68 additions and 52 deletions
--- a/be/src/exec/hash_table.cpp
+++ b/be/src/exec/hash_table.cpp
@ -27,8 +27,6 @@

 namespace doris {

-const float HashTable::MAX_BUCKET_OCCUPANCY_FRACTION = 0.75f;
-
 HashTable::HashTable(const std::vector<ExprContext*>& build_expr_ctxs,
                     const std::vector<ExprContext*>& probe_expr_ctxs, int num_build_tuples,
                     bool stores_nulls, const std::vector<bool>& finds_nulls, int32_t initial_seed,