userkdg opened a new issue #13972:
URL: https://github.com/apache/shardingsphere/issues/13972
## Bug Report
subquery table set alias , proxy rewrite sql error . such as :
``` sql
MySQL [ec_order_db]> preview select count(1) as cnt from (select a.address
from ec_oms_order a) as tmp;
+------------------+-----------------------------------------------------------------------------------------------+
| data_source_name | sql
|
+------------------+-----------------------------------------------------------------------------------------------+
| ec_order_ds | select count(1) as cnt from (select a.a.address_cipher
AS address from ec_oms_order a) as tmp |
+------------------+-----------------------------------------------------------------------------------------------+
```
### Which version of ShardingSphere did you use?
the lastest master
### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
shardingsphere-proxy
### Expected behavior
``` sql
select count(1) as cnt from (select a.address_cipher AS address from
ec_oms_order a) as tmp
```
### Actual behavior
``` sql
select count(1) as cnt from (select a.a.address_cipher AS address from
ec_oms_order a) as tmp
```
### Reason analyze (If you can)
EncryptPredicateColumnTokenGenerator
### Steps to reproduce the behavior, such as: SQL to execute, sharding rule
configuration, when exception occur etc.
### Example codes for reproduce this issue (such as a github link).
```
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