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  1. Calcite
  2. CALCITE-3658

TableModify of Update contains correlated variable by mistake.

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.22.0
    • Component/s: None

      Description

      UPDATE clause like below

      update emp set empno = empno + 1
      

      will be converted to

      LogicalTableModify(table=[[CATALOG, SALES, EMP]], operation=[UPDATE], updateColumnList=[[EMPNO]], sourceExpressionList=[[+($cor0.EMPNO, 1)]], flattened=[true])
        LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3], HIREDATE=[$4], SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8], EXPR$0=[+($0, 1)])
          LogicalTableScan(table=[[CATALOG, SALES, EMP]])
      

      However the correlated variables $cor0.EMPNO should not exist in sourceExpressionList.
      It also brings trouble when convert TableModify back to Sql string.

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              • Assignee:
                Unassigned
                Reporter:
                jinxing6042@126.com Jin Xing
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                  Updated:
                  Resolved:

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