fix(query): show sql len on systable length modify from 1024 to 2048

include/util/tdef.h

@@ -254,7 +254,7 @@ typedef enum ELogicConditionType {
 #define TSDB_EP_LEN             (TSDB_FQDN_LEN + 6)
 #define TSDB_IPv4ADDR_LEN       16
 #define TSDB_FILENAME_LEN       128
-#define TSDB_SHOW_SQL_LEN       1024
+#define TSDB_SHOW_SQL_LEN       2048
 #define TSDB_SLOW_QUERY_SQL_LEN 512
 #define TSDB_SHOW_SUBQUERY_LEN  1000