mirror of
https://github.com/MariaDB/server.git
synced 2025-12-13 20:03:16 +03:00
48738f737a
pushdown.
NDB supports only a limited set of item nodes for use in engine condition
pushdown. Because of this adding cache for const expression effectively
disabled this optimization.
The ndb_serialize_cond function is extended to support Item_cache and treat
it as a constant values.
A helper function called ndb_serialize_const is added. It is used to create
Ndb_cond value node from given const item.