jingshanglu opened a new issue #8696:
URL: https://github.com/apache/shardingsphere/issues/8696
## Bug Report
```
SELECT @@SESSION.auto_increment_increment AS auto_increment_increment,
@@character_set_client AS character_set_client, @@character_set_connection AS
character_set_connection, @@character_set_results AS character_set_results,
@@character_set_server AS character_set_server, @@collation_server AS
collation_server, @@collation_connection AS collation_connection,
@@init_connect AS init_connect, @@interactive_timeout AS interactive_timeout,
@@license AS license, @@lower_case_table_names AS lower_case_table_names,
@@max_allowed_packet AS max_allowed_packet, @@net_buffer_length AS
net_buffer_length, @@net_write_timeout AS net_write_timeout, @@query_cache_size
AS query_cache_size, @@query_cache_type AS query_cache_type, @@sql_mode AS
sql_mode, @@system_time_zone AS system_time_zone, @@time_zone AS time_zone,
@@tx_isolation AS transaction_isolation, @@wait_timeout AS wait_timeout
```
this sql format error.
### Which version of ShardingSphere did you use?
master branch
### Expected behavior
```
SELECT @@SESSION.auto_increment_increment AS auto_increment_increment,
@@character_set_client AS character_set_client, @@character_set_connection AS
character_set_connection,
@@character_set_results AS character_set_results,
@@character_set_server AS character_set_server, @@collation_server AS
collation_server,
@@collation_connection AS collation_connection, @@init_connect AS
init_connect, @@interactive_timeout AS interactive_timeout,
@@license AS license, @@lower_case_table_names AS
lower_case_table_names, @@max_allowed_packet AS max_allowed_packet,
@@net_buffer_length AS net_buffer_length, @@net_write_timeout AS
net_write_timeout, @@query_cache_size AS query_cache_size,
@@query_cache_type AS query_cache_type, @@sql_mode AS sql_mode,
@@system_time_zone AS system_time_zone,
@@time_zone AS time_zone, @@tx_isolation AS transaction_isolation,
@@wait_timeout AS wait_timeout
```
### Actual behavior
```
SELECT @ @ SESSION . auto_increment_increment AS auto_increment_increment, @
@ character_set_client AS character_set_client, @ @ character_set_connection AS
character_set_connection,
@ @ character_set_results AS character_set_results, @ @
character_set_server AS character_set_server, @ @ collation_server AS
collation_server,
@ @ collation_connection AS collation_connection, @ @ init_connect AS
init_connect, @ @ interactive_timeout AS interactive_timeout,
@ @ license AS license, @ @ lower_case_table_names AS
lower_case_table_names, @ @ max_allowed_packet AS max_allowed_packet,
@ @ net_buffer_length AS net_buffer_length, @ @ net_write_timeout AS
net_write_timeout, @ @ query_cache_size AS query_cache_size,
@ @ query_cache_type AS query_cache_type, @ @ sql_mode AS sql_mode, @ @
system_time_zone AS system_time_zone,
@ @ time_zone AS time_zone, @ @ tx_isolation AS transaction_isolation,
@ @ wait_timeout AS wait_timeout
```
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