my7ym commented on a change in pull request #1152: [CALCITE-2962]
RelStructuredTypeFlattener generates wrong types for n…
URL: https://github.com/apache/calcite/pull/1152#discussion_r275497904
##########
File path:
core/src/test/resources/org/apache/calcite/test/SqlToRelConverterTest.xml
##########
@@ -867,6 +867,17 @@ LogicalProject(ZIP=[$4])
LogicalFilter(condition=[=($3, 'abc':VARCHAR(20))])
LogicalProject(EMPNO=[$0], STREET=[$1.STREET], CITY=[$1.CITY],
ZIP=[$1.ZIP], STATE=[$1.STATE], STREET5=[$2.STREET], CITY6=[$2.CITY],
ZIP7=[$2.ZIP], STATE8=[$2.STATE])
LogicalTableScan(table=[[CATALOG, SALES, EMP_ADDRESS]])
+]]>
+ </Resource>
+ </TestCase>
+ <TestCase name="testSelectNestedColumnType">
+ <Resource name="plan">
+ <![CDATA[
+LogicalProject(COORD=[$0])
Review comment:
@zabetak Got your point.
The root actually got expanded like:
```
LogicalProject(COORD=[$4], COORD1=[$5], COORD2=[$6])
LogicalFilter(condition=[=($4, 1)])
LogicalProject(CONTACTNO=[$0], FNAME=[$1], LNAME=[$2], EMAIL=[$3],
X=[$4.X], Y=[$4.Y], unit=[$4.unit], M=[$5.M], A=[$5.SUB.A], B=[$5.SUB.B])
LogicalTableScan(table=[[CATALOG, CUSTOMER, CONTACT_PEEK]])
```
But the RelRoot.project messed it up :(
And I like the original test case better because it's the minimum one which
could test this failure.
But I think your point also makes sense. So I managed to make up a test to
cover this issue. (And this test case is extremely similar to my project)
Let me know what you think man.
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