Applied patch 001_mariadb-10.0.15.partition_cond_push.diff

- Added cond_push() and cond_pop() to ha_partition.cc
MariaDB · Dec 3, 2017 · 25a1fdd · 25a1fdd
1 parent c57e1bf
commit 25a1fdd
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diff --git a/sql/ha_partition.cc b/sql/ha_partition.cc
@@ -9142,6 +9142,39 @@ TABLE_LIST *ha_partition::get_next_global_for_child()
 }
 
 
+const COND *ha_partition::cond_push(const COND *cond)
+{
+  handler **file= m_file;
+  COND *res_cond = NULL;
+  DBUG_ENTER("ha_partition::cond_push");
+
+  do
+  {
+    if ((*file)->pushed_cond != cond)
+    {
+      if ((*file)->cond_push(cond))
+        res_cond = (COND *) cond;
+      else
+        (*file)->pushed_cond = cond;
+    }
+  } while (*(++file));
+  DBUG_RETURN(res_cond);
+}
+
+
+void ha_partition::cond_pop()
+{
+  handler **file= m_file;
+  DBUG_ENTER("ha_partition::cond_push");
+
+  do
+  {
+    (*file)->cond_pop();
+  } while (*(++file));
+  DBUG_VOID_RETURN;
+}
+
+
 struct st_mysql_storage_engine partition_storage_engine=
 { MYSQL_HANDLERTON_INTERFACE_VERSION };
 

diff --git a/sql/ha_partition.h b/sql/ha_partition.h
@@ -1198,6 +1198,14 @@ class ha_partition :public handler
     virtual bool is_crashed() const;
     virtual int check_for_upgrade(HA_CHECK_OPT *check_opt);
 
+  /*
+    -------------------------------------------------------------------------
+    MODULE condition pushdown
+    -------------------------------------------------------------------------
+  */
+    virtual const COND *cond_push(const COND *cond);
+    virtual void cond_pop();
+
     private:
     int handle_opt_partitions(THD *thd, HA_CHECK_OPT *check_opt, uint flags);
     int handle_opt_part(THD *thd, HA_CHECK_OPT *check_opt, uint part_id,