xy720 opened a new pull request, #18935:
URL: https://github.com/apache/doris/pull/18935
# Proposed changes
fix some bugs in map and map element function:
1、error occur when map constructor's parameter is empty:
Before:
```
mysql> select map();
ERROR 1105 (HY000): errCode = 2, detailMessage = Unexpected exception: 0
```
After:
```
mysql> SELECT map();
+-------+
| MAP{} |
+-------+
| MAP{} |
+-------+
1 row in set (0.01 sec)
```
2、be core in map constructor when the parameter number is odd:
Before
```
mysql> select map(1,'a',3,'c',5);
ERROR 1105 (HY000): RpcException, msg: io.grpc.StatusRuntimeException:
UNAVAILABLE: Network closed for unknown reason
```
After
```
mysql> select map(1,'a',3,'c',5);
ERROR 1105 (HY000): errCode = 2, detailMessage = map can't be odd
parameters, need even parameters: map(1, 2, 3, 4, 5)
```
3、be core in map element function
Before
```
mysql> select {1:"a", 3:"b", 5:"c"}[1];
ERROR 1105 (HY000): RpcException, msg: org.apache.doris.rpc.RpcException:
io.grpc.StatusRuntimeException: UNAVAILABLE: Network closed for unknown reason
```
After
```
mysql> select {1:"a", 3:"b", 5:"c"}[1];
+------------------------------------------------+
| %element_extract%(MAP{1:'a', 3:'b', 5:'c'}, 1) |
+------------------------------------------------+
| a |
+------------------------------------------------+
1 row in set (0.02 sec)
```
## Problem summary
Describe your changes.
## Checklist(Required)
* [ ] Does it affect the original behavior
* [ ] Has unit tests been added
* [ ] Has document been added or modified
* [ ] Does it need to update dependencies
* [ ] Is this PR support rollback (If NO, please explain WHY)
## Further comments
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[[email protected]](mailto:[email protected]) by explaining why you
chose the solution you did and what alternatives you considered, etc...
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