Files
doris/fe
starocean999 17a1ce5ed3 [fix](nereids) add a project node above sort node to eliminate unused order by keys (#17913)
if the order by keys are not simple slot in sort node, the order by exprs have to been added to sort node's output tuple. In that case, we need add a project node above sort node to eliminate the unused order by exprs. for example:

```sql
WITH t0 AS 
    (SELECT DATE_FORMAT(date,
         '%Y%m%d') AS date
    FROM cir_1756_t1 ), t3 AS 
    (SELECT date_format(date,
         '%Y%m%d') AS `date`
    FROM `cir_1756_t2`
    GROUP BY  date_format(date, '%Y%m%d')
    **ORDER BY  date_format(date, '%Y%m%d')** )
SELECT t0.date
FROM t0
LEFT JOIN t3
    ON t0.date = t3.date;
```

before:
```
+--------------------------------------------------------------------------------------------------------------------------------------------------+
| Explain String                                                                                                                                   |
+--------------------------------------------------------------------------------------------------------------------------------------------------+
| LogicalProject[159] ( distinct=false, projects=[date#1], excepts=[], canEliminate=true )                                                         |
| +--LogicalJoin[158] ( type=LEFT_OUTER_JOIN, markJoinSlotReference=Optional.empty, hashJoinConjuncts=[(date#1 = date#3)], otherJoinConjuncts=[] ) |
|    |--LogicalProject[151] ( distinct=false, projects=[date_format(date#0, '%Y%m%d') AS `date`#1], excepts=[], canEliminate=true )                |
|    |  +--LogicalOlapScan ( qualified=default_cluster:bugfix.cir_1756_t1, indexName=cir_1756_t1, selectedIndexId=412339, preAgg=ON )              |
|    +--LogicalSort[157] ( orderKeys=[date_format(cast(date#3 as DATETIME), '%Y%m%d') asc null first] )                                            |
|       +--LogicalAggregate[156] ( groupByExpr=[date#3], outputExpr=[date#3], hasRepeat=false )                                                    |
|          +--LogicalProject[155] ( distinct=false, projects=[date_format(date#2, '%Y%m%d') AS `date`#3], excepts=[], canEliminate=true )          |
|             +--LogicalOlapScan ( qualified=default_cluster:bugfix.cir_1756_t2, indexName=cir_1756_t2, selectedIndexId=412352, preAgg=ON )        |
+--------------------------------------------------------------------------------------------------------------------------------------------------+
```

after:
```
+--------------------------------------------------------------------------------------------------------------------------------------------------+
| Explain String                                                                                                                                   |
+--------------------------------------------------------------------------------------------------------------------------------------------------+
| LogicalProject[171] ( distinct=false, projects=[date#2], excepts=[], canEliminate=true )                                                         |
| +--LogicalJoin[170] ( type=LEFT_OUTER_JOIN, markJoinSlotReference=Optional.empty, hashJoinConjuncts=[(date#2 = date#4)], otherJoinConjuncts=[] ) |
|    |--LogicalProject[162] ( distinct=false, projects=[date_format(date#0, '%Y%m%d') AS `date`#2], excepts=[], canEliminate=true )                |
|    |  +--LogicalOlapScan ( qualified=default_cluster:bugfix.cir_1756_t1, indexName=cir_1756_t1, selectedIndexId=1049812, preAgg=ON )             |
|    +--LogicalProject[169] ( distinct=false, projects=[date#4], excepts=[], canEliminate=false )                                                  |
|       +--LogicalSort[168] ( orderKeys=[date_format(cast(date#4 as DATETIME), '%Y%m%d') asc null first] )                                         |
|          +--LogicalAggregate[167] ( groupByExpr=[date#4], outputExpr=[date#4], hasRepeat=false )                                                 |
|             +--LogicalProject[166] ( distinct=false, projects=[date_format(date#3, '%Y%m%d') AS `date`#4], excepts=[], canEliminate=true )       |
|                +--LogicalOlapScan ( qualified=default_cluster:bugfix.cir_1756_t2, indexName=cir_1756_t2, selectedIndexId=1049825, preAgg=ON )    |
+--------------------------------------------------------------------------------------------------------------------------------------------------+
```
2023-03-22 11:19:32 +08:00
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