[jira] [Created] (CALCITE-4274) Cascaded table-valued function windowing contains ambiguous window_start/window_end columns

["liupengcheng (Jira)" <ji...@apache.org>]

liupengcheng created CALCITE-4274:
-------------------------------------

             Summary: Cascaded table-valued function windowing contains ambiguous window_start/window_end columns
                 Key: CALCITE-4274
                 URL: https://issues.apache.org/jira/browse/CALCITE-4274
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.23.0
            Reporter: liupengcheng


When executing the following sql, the ValidationException is thrown:

sql:
{code:java}
with subquery1 as (select * from table(TUMBLE(table MyTable3, " +
  "descriptor(eventtime1), interval '1' minute))) " +
  "select window_end from table(TUMBLE(table subquery1, " +
  "descriptor(eventtime1), interval '1' minute))
{code}
exceptions:
{code:java}
org.apache.calcite.runtime.CalciteContextException: From line 1, column 117 to line 1, column 126: Column 'window_end' is ambiguousorg.apache.calcite.runtime.CalciteContextException: From line 1, column 117 to line 1, column 126: Column 'window_end' is ambiguous at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:457) at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:857) at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:842) at org.apache.calcite.sql.validate.SqlValidatorImpl.newValidationError(SqlValidatorImpl.java:5114) at org.apache.calcite.sql.validate.DelegatingScope.fullyQualify(DelegatingScope.java:278) at org.apache.calcite.sql.validate.SqlValidatorImpl$Expander.visit(SqlValidatorImpl.java:6012) at org.apache.calcite.sql.validate.SqlValidatorImpl$SelectExpander.visit(SqlValidatorImpl.java:6175) at org.apache.calcite.sql.validate.SqlValidatorImpl$SelectExpander.visit(SqlValidatorImpl.java:6161) at org.apache.calcite.sql.SqlIdentifier.accept(SqlIdentifier.java:321) at org.apache.calcite.sql.validate.SqlValidatorImpl.expandSelectExpr(SqlValidatorImpl.java:5595) at org.apache.calcite.sql.validate.SqlValidatorImpl.expandSelectItem(SqlValidatorImpl.java:454) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelectList(SqlValidatorImpl.java:4279) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:3538) at org.apache.calcite.sql.validate.SelectNamespace.validateImpl(SelectNamespace.java:60) at org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:84) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:1111) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:1085) at org.apache.calcite.sql.validate.WithNamespace.validateImpl(WithNamespace.java:57) at org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:84) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:1111) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateWith(SqlValidatorImpl.java:3929) at org.apache.calcite.sql.SqlWith.validate(SqlWith.java:71) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:1060) at org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:767)
{code}
I looked into the code, I think it's because we are now appending `window_start`/`window_end` directly when deriving row type.

I think it's a bug in Calcite, we can fix it by deduplicate the window_start/window_end columns.



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