[GitHub] [incubator-shardingsphere] yanickxia opened a new pull request #3284: Fix assignmentValueNode get error index

[GitBox]

yanickxia opened a new pull request #3284: Fix assignmentValueNode get error 
index
URL: https://github.com/apache/incubator-shardingsphere/pull/3284
 
 
   Fixes #3279
   
   Changes proposed in this pull request:
   - Fix get error index for nest Assignment Segment
   
   Case 1：
   ```sql
   update OTS_ORDER set UPDATE_DATE = now() where ID = 1;
   ```
   then assignmentNode child size 3,  a -> CloumName; b -> = ; c -> now(), 
should get index 2
   
   Case 2:
   ```sql
   update OTS_ORDER set UPDATE_DATE = (now()+1) where ID = 1;
   update OTS_ORDER set UPDATE_DATE = (now()) where ID = 1;
   ```
   
   then assignmentNode child size 5,  a -> CloumName; b -> = ; c -> (;  d-> 
now()+1; e -> ), should get index 3
   
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