add spider_bka_mode=2

storage/spider/ha_spider.h

@@ -818,6 +818,10 @@ public:
     const key_range *start_key
   );
   int reuse_tmp_table_and_sql_for_bka();
+  int append_union_table_and_sql_for_bka(
+    const key_range *start_key
+  );
+  int reuse_union_table_and_sql_for_bka();
   int append_insert_sql_part();
   int append_update_sql_part();
 #if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
@@ -878,10 +882,20 @@ public:
   int append_values_terminator_sql_part(
     ulong sql_type
   );
+  int append_union_table_connector_sql_part(
+    ulong sql_type
+  );
+  int append_union_table_terminator_sql_part(
+    ulong sql_type
+  );
   int append_key_column_values_sql_part(
     const key_range *start_key,
     ulong sql_type
   );
+  int append_key_column_values_with_name_sql_part(
+    const key_range *start_key,
+    ulong sql_type
+  );
   int append_key_where_sql_part(
     const key_range *start_key,
     const key_range *end_key,
@@ -983,6 +997,10 @@ public:
     uint multi_range_cnt,
     bool with_comma
   );
+  int append_multi_range_cnt_with_name_sql_part(
+    ulong sql_type,
+    uint multi_range_cnt
+  );
   int append_delete_all_rows_sql_part(
     ulong sql_type
   );

storage/spider/spd_conn.cc

@@ -2293,7 +2293,7 @@ void *spider_bg_conn_action(
               spider_db_set_names(spider, conn, conn->link_idx)))
             {
               if (
-                result_list->tmp_table_join &&
+                result_list->tmp_table_join && spider->bka_mode != 2 &&
                 spider_bit_is_set(result_list->tmp_table_join_first,
                   conn->link_idx)
               ) {

storage/spider/spd_db_handlersocket.cc

@@ -3823,6 +3823,23 @@ int spider_handlersocket_handler::reuse_tmp_table_and_sql_for_bka()
   DBUG_RETURN(0);
 }
 
+int spider_handlersocket_handler::append_union_table_and_sql_for_bka(
+  const key_range *start_key
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_union_table_and_sql_for_bka");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::reuse_union_table_and_sql_for_bka()
+{
+  DBUG_ENTER("spider_handlersocket_handler::reuse_union_table_and_sql_for_bka");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
 int spider_handlersocket_handler::append_insert_for_recovery(
   ulong sql_type,
   int link_idx
@@ -4131,6 +4148,24 @@ int spider_handlersocket_handler::append_values_terminator_part(
   DBUG_RETURN(0);
 }
 
+int spider_handlersocket_handler::append_union_table_connector_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_union_table_connector_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_union_table_terminator_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_union_table_terminator_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
 int spider_handlersocket_handler::append_key_column_values_part(
   const key_range *start_key,
   ulong sql_type
@@ -4141,6 +4176,16 @@ int spider_handlersocket_handler::append_key_column_values_part(
   DBUG_RETURN(0);
 }
 
+int spider_handlersocket_handler::append_key_column_values_with_name_part(
+  const key_range *start_key,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_key_column_values_with_name_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
 int spider_handlersocket_handler::append_key_where_part(
   const key_range *start_key,
   const key_range *end_key,
@@ -4400,6 +4445,16 @@ int spider_handlersocket_handler::append_multi_range_cnt_part(
   DBUG_RETURN(0);
 }
 
+int spider_handlersocket_handler::append_multi_range_cnt_with_name_part(
+  ulong sql_type,
+  uint multi_range_cnt
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_multi_range_cnt_with_name_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
 int spider_handlersocket_handler::append_open_handler_part(
   ulong sql_type,
   uint handler_id,

storage/spider/spd_db_handlersocket.h

@@ -495,6 +495,10 @@ public:
     const key_range *start_key
   );
   int reuse_tmp_table_and_sql_for_bka();
+  int append_union_table_and_sql_for_bka(
+    const key_range *start_key
+  );
+  int reuse_union_table_and_sql_for_bka();
   int append_insert_for_recovery(
     ulong sql_type,
     int link_idx
@@ -577,10 +581,20 @@ public:
   int append_values_terminator_part(
     ulong sql_type
   );
+  int append_union_table_connector_part(
+    ulong sql_type
+  );
+  int append_union_table_terminator_part(
+    ulong sql_type
+  );
   int append_key_column_values_part(
     const key_range *start_key,
     ulong sql_type
   );
+  int append_key_column_values_with_name_part(
+    const key_range *start_key,
+    ulong sql_type
+  );
   int append_key_where_part(
     const key_range *start_key,
     const key_range *end_key,
@@ -679,6 +693,10 @@ public:
     uint multi_range_cnt,
     bool with_comma
   );
+  int append_multi_range_cnt_with_name_part(
+    ulong sql_type,
+    uint multi_range_cnt
+  );
   int append_open_handler_part(
     ulong sql_type,
     uint handler_id,

storage/spider/spd_db_include.h

@@ -998,6 +998,10 @@ public:
     const key_range *start_key
   ) = 0;
   virtual int reuse_tmp_table_and_sql_for_bka() = 0;
+  virtual int append_union_table_and_sql_for_bka(
+    const key_range *start_key
+  ) = 0;
+  virtual int reuse_union_table_and_sql_for_bka() = 0;
   virtual int append_insert_for_recovery(
     ulong sql_type,
     int link_idx
@@ -1072,10 +1076,20 @@ public:
   virtual int append_values_terminator_part(
     ulong sql_type
   ) = 0;
+  virtual int append_union_table_connector_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_union_table_terminator_part(
+    ulong sql_type
+  ) = 0;
   virtual int append_key_column_values_part(
     const key_range *start_key,
     ulong sql_type
   ) = 0;
+  virtual int append_key_column_values_with_name_part(
+    const key_range *start_key,
+    ulong sql_type
+  ) = 0;
   virtual int append_key_where_part(
     const key_range *start_key,
     const key_range *end_key,
@@ -1155,6 +1169,10 @@ public:
     uint multi_range_cnt,
     bool with_comma
   ) = 0;
+  virtual int append_multi_range_cnt_with_name_part(
+    ulong sql_type,
+    uint multi_range_cnt
+  ) = 0;
   virtual int append_open_handler_part(
     ulong sql_type,
     uint handler_id,

storage/spider/spd_db_mysql.h

@@ -577,6 +577,10 @@ public:
     int tmp_table_name_length,
     int *db_name_pos
   );
+  int append_union_table_and_sql_for_bka(
+    const key_range *start_key
+  );
+  int reuse_union_table_and_sql_for_bka();
   int append_insert_for_recovery(
     ulong sql_type,
     int link_idx
@@ -721,6 +725,18 @@ public:
   int append_values_terminator(
     spider_string *str
   );
+  int append_union_table_connector_part(
+    ulong sql_type
+  );
+  int append_union_table_connector(
+    spider_string *str
+  );
+  int append_union_table_terminator_part(
+    ulong sql_type
+  );
+  int append_union_table_terminator(
+    spider_string *str
+  );
   int append_key_column_values_part(
     const key_range *start_key,
     ulong sql_type
@@ -729,6 +745,14 @@ public:
     spider_string *str,
     const key_range *start_key
   );
+  int append_key_column_values_with_name_part(
+    const key_range *start_key,
+    ulong sql_type
+  );
+  int append_key_column_values_with_name(
+    spider_string *str,
+    const key_range *start_key
+  );
   int append_key_where_part(
     const key_range *start_key,
     const key_range *end_key,
@@ -909,6 +933,14 @@ public:
     uint multi_range_cnt,
     bool with_comma
   );
+  int append_multi_range_cnt_with_name_part(
+    ulong sql_type,
+    uint multi_range_cnt
+  );
+  int append_multi_range_cnt_with_name(
+    spider_string *str,
+    uint multi_range_cnt
+  );
   int append_open_handler_part(
     ulong sql_type,
     uint handler_id,

storage/spider/spd_db_oracle.h

@@ -660,6 +660,10 @@ public:
     int tmp_table_name_length,
     int *db_name_pos
   );
+  int append_union_table_and_sql_for_bka(
+    const key_range *start_key
+  );
+  int reuse_union_table_and_sql_for_bka();
   int append_insert_for_recovery(
     ulong sql_type,
     int link_idx
@@ -804,6 +808,18 @@ public:
   int append_values_terminator(
     spider_string *str
   );
+  int append_union_table_connector_part(
+    ulong sql_type
+  );
+  int append_union_table_connector(
+    spider_string *str
+  );
+  int append_union_table_terminator_part(
+    ulong sql_type
+  );
+  int append_union_table_terminator(
+    spider_string *str
+  );
   int append_key_column_values_part(
     const key_range *start_key,
     ulong sql_type
@@ -812,6 +828,14 @@ public:
     spider_string *str,
     const key_range *start_key
   );
+  int append_key_column_values_with_name_part(
+    const key_range *start_key,
+    ulong sql_type
+  );
+  int append_key_column_values_with_name(
+    spider_string *str,
+    const key_range *start_key
+  );
   int append_key_where_part(
     const key_range *start_key,
     const key_range *end_key,
@@ -992,6 +1016,14 @@ public:
     uint multi_range_cnt,
     bool with_comma
   );
+  int append_multi_range_cnt_with_name_part(
+    ulong sql_type,
+    uint multi_range_cnt
+  );
+  int append_multi_range_cnt_with_name(
+    spider_string *str,
+    uint multi_range_cnt
+  );
   int append_open_handler_part(
     ulong sql_type,
     uint handler_id,

storage/spider/spd_include.h

@@ -118,7 +118,7 @@
 #define SPIDER_TMP_SHARE_LONG_COUNT         15
 #define SPIDER_TMP_SHARE_LONGLONG_COUNT      3
 
-#define SPIDER_MEM_CALC_LIST_NUM           233
+#define SPIDER_MEM_CALC_LIST_NUM           235
 
 #define SPIDER_BACKUP_DASTATUS \
   bool da_status; if (thd) da_status = thd->is_error(); else da_status = FALSE;

storage/spider/spd_param.cc

@@ -2356,7 +2356,7 @@ static MYSQL_THDVAR_INT(
   NULL, /* update */
   -1, /* def */
   -1, /* min */
-  1, /* max */
+  2, /* max */
   0 /* blk */
 );
 

storage/spider/spd_table.cc

@@ -1900,7 +1900,7 @@ int spider_parse_connect_info(
           SPIDER_PARAM_LONGLONG("bsr", bgs_second_read, 0);
 #endif
           SPIDER_PARAM_STR("bke", bka_engine);
-          SPIDER_PARAM_INT_WITH_MAX("bkm", bka_mode, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX("bkm", bka_mode, 0, 2);
           SPIDER_PARAM_INT("bsz", bulk_size, 0);
           SPIDER_PARAM_INT_WITH_MAX("bum", bulk_update_mode, 0, 2);
           SPIDER_PARAM_INT("bus", bulk_update_size, 0);
@@ -2056,7 +2056,7 @@ int spider_parse_connect_info(
           SPIDER_PARAM_INT("bgs_mode", bgs_mode, 0);
 #endif
           SPIDER_PARAM_STR_LIST("ssl_cert", tgt_ssl_certs);
-          SPIDER_PARAM_INT_WITH_MAX("bka_mode", bka_mode, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX("bka_mode", bka_mode, 0, 2);
           error_num = ER_SPIDER_INVALID_CONNECT_INFO_NUM;
           my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_STR,
             MYF(0), tmp_ptr);