Add ddst_dict_init api support for rocksdb ddse (percona#1297)

Summary:
Add ddst_dict_init handler api support for rocksdb dd

Currently rocksdb ddst_dict_init() doesn't add any rocksdb specific tables and tablespace during ddse initialize.

Pull Request resolved: facebook/mysql-5.6#1297

Test Plan: CI

Differential Revision: D46700996

fbshipit-source-id: fbb80035b54cc068c845e63fe6903c8488fce1d3

storage/rocksdb/ha_rocksdb.cc

@@ -6345,6 +6345,7 @@ static int rocksdb_init_internal(void *const p) {
   rocksdb_hton->dict_get_server_version = rocksdb_dict_get_server_version;
   rocksdb_hton->dict_set_server_version = rocksdb_dict_set_server_version;
   rocksdb_hton->is_supported_system_table = rocksdb_is_supported_system_table;
+  rocksdb_hton->ddse_dict_init = rocksdb_ddse_dict_init;
 
   rocksdb_hton->flags = HTON_SUPPORTS_EXTENDED_KEYS | HTON_CAN_RECREATE |
                         HTON_SUPPORTS_ONLINE_BACKUPS;

storage/rocksdb/rdb_native_dd.cc

@@ -23,6 +23,7 @@
 
 /* MyRocks header files */
 #include "ha_rocksdb.h"
+#include "sql/plugin_table.h"
 #include "storage/rocksdb/ha_rocksdb_proto.h"
 #include "storage/rocksdb/rdb_datadic.h"
 
@@ -77,4 +78,18 @@ bool rocksdb_is_supported_system_table([[maybe_unused]] const char *db_name,
   return false;
 }
 
+bool rocksdb_ddse_dict_init(
+    [[maybe_unused]] dict_init_mode_t dict_init_mode, uint,
+    [[maybe_unused]] List<const dd::Object_table> *tables,
+    [[maybe_unused]] List<const Plugin_tablespace> *tablespaces) {
+  assert(tables);
+  assert(tables->is_empty());
+  assert(tablespaces);
+  assert(tablespaces->is_empty());
+
+  assert(dict_init_mode == DICT_INIT_CREATE_FILES ||
+         dict_init_mode == DICT_INIT_CHECK_FILES);
+
+  return false;
+}
 }  // namespace myrocks

storage/rocksdb/rdb_native_dd.h

@@ -21,6 +21,7 @@
 
 /* MySQL header files */
 #include "sql/dd/object_id.h"
+#include "sql/handler.h"
 
 namespace dd {
 class Table;
@@ -32,6 +33,9 @@ void rocksdb_dict_register_dd_table_id(dd::Object_id dd_table_id);
 bool rocksdb_dict_get_server_version(uint *version);
 bool rocksdb_dict_set_server_version();
 bool rocksdb_is_supported_system_table(const char *, const char *, bool);
+bool rocksdb_ddse_dict_init(dict_init_mode_t dict_init_mode, uint version,
+                            List<const dd::Object_table> *tables,
+                            List<const Plugin_tablespace> *tablespaces);
 
 class native_dd {
  private: