MDEV-28795 Deprecate spider_bka_table_name_type

storage/spider/mysql-test/spider/r/variable_deprecation.result

@@ -240,6 +240,21 @@ Warnings:
 Warning	1287	The table parameter 'semi_table_lock_connection' is deprecated and will be removed in a future release
 DROP TABLE tbl_a;
 DROP TABLE tbl_b;
+# MDEV-28795 Deprecate spider_bka_table_name_type
+SET spider_bka_table_name_type = 1;
+Warnings:
+Warning	1287	'@@spider_bka_table_name_type' is deprecated and will be removed in a future release
+SHOW VARIABLES LIKE "spider_bka_table_name_type";
+Variable_name	Value
+spider_bka_table_name_type	1
+CREATE TABLE tbl_a (a INT) ENGINE=Spider COMMENT='btt "1"';
+Warnings:
+Warning	1287	The table parameter 'btt' is deprecated and will be removed in a future release
+CREATE TABLE tbl_b (a INT) ENGINE=Spider COMMENT='bka_table_name_type "1"';
+Warnings:
+Warning	1287	The table parameter 'bka_table_name_type' is deprecated and will be removed in a future release
+DROP TABLE tbl_a;
+DROP TABLE tbl_b;
 DROP DATABASE auto_test_local;
 for master_1
 for child2

storage/spider/mysql-test/spider/t/variable_deprecation.test

@@ -143,6 +143,15 @@ eval CREATE TABLE tbl_b (a INT) $MASTER_1_ENGINE COMMENT='semi_table_lock_connec
 DROP TABLE tbl_a;
 DROP TABLE tbl_b;
 
+--echo # MDEV-28795 Deprecate spider_bka_table_name_type
+SET spider_bka_table_name_type = 1;
+SHOW VARIABLES LIKE "spider_bka_table_name_type";
+eval CREATE TABLE tbl_a (a INT) $MASTER_1_ENGINE COMMENT='btt "1"';
+eval CREATE TABLE tbl_b (a INT) $MASTER_1_ENGINE COMMENT='bka_table_name_type "1"';
+
+DROP TABLE tbl_a;
+DROP TABLE tbl_b;
+
 DROP DATABASE auto_test_local;
 
 --disable_query_log

storage/spider/spd_param.cc

@@ -3184,7 +3184,7 @@ int spider_param_delete_all_rows_type(
  */
 static MYSQL_THDVAR_INT(
   bka_table_name_type, /* name */
-  PLUGIN_VAR_RQCMDARG, /* opt */
+  PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_DEPRECATED, /* opt */
   "The type of temporary table name for bka", /* comment */
   NULL, /* check */
   spider_var_deprecated_int, /* update */

storage/spider/spd_table.cc

@@ -2339,6 +2339,7 @@ int spider_parse_connect_info(
           SPIDER_PARAM_STR("bke", bka_engine);
           SPIDER_PARAM_INT_WITH_MAX("bkm", bka_mode, 0, 2);
           SPIDER_PARAM_INT("bsz", bulk_size, 0);
+          SPIDER_PARAM_DEPRECATED_WARNING("btt");
           SPIDER_PARAM_LONG_LIST_WITH_MAX("btt", bka_table_name_types,
             0, 1);
           SPIDER_PARAM_INT_WITH_MAX("bum", bulk_update_mode, 0, 2);
@@ -2700,6 +2701,7 @@ int spider_parse_connect_info(
 #if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
           SPIDER_PARAM_LONGLONG("hs_result_free_size", hs_result_free_size, 0);
 #endif
+          SPIDER_PARAM_DEPRECATED_WARNING("bka_table_name_type");
           SPIDER_PARAM_LONG_LIST_WITH_MAX("bka_table_name_type",
             bka_table_name_types, 0, 1);
           SPIDER_PARAM_INT_WITH_MAX(