[CALCITE-6370] AS operator problems with USING clause

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.36.0
• Fix Version/s: 1.38.0
• Component/s: core
• Labels: pull-request-available
• Assignee: Norman Jordan
• Reporter: Claude Brisson
• Created: 16/Apr/24 12:25
• Updated: 17/Oct/24 22:41
• Resolved: 17/Oct/24 22:41

Description

In some cases, with the USING clause, the used column generates ambiguity exceptions with the AS operator.

 

OK : select r_regionkey from region r0 join region r1 using (r_regionkey)

OK : select r_regionkey * 2 as rk2 from region r0 join region r1 using (r_regionkey)

KO : select r_regionkey as rk from region r0 join region r1 using (r_regionkey)

 

The last query generates the following error:

 

 org.apache.calcite.sql.validate.SqlValidatorException: Column 'r_regionkey' is ambiguous
    at jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance (DirectConstructorHandleAccessor.java:62)
    at java.lang.reflect.Constructor.newInstanceWithCaller (Constructor.java:502)
    at java.lang.reflect.Constructor.newInstance (Constructor.java:486)
    at org.apache.calcite.runtime.Resources$ExInstWithCause.ex (Resources.java:507)
    at org.apache.calcite.runtime.Resources$ExInst.ex (Resources.java:601)
    at org.apache.calcite.sql.SqlUtil.newContextException (SqlUtil.java:948)
    at org.apache.calcite.sql.SqlUtil.newContextException (SqlUtil.java:933)
    at org.apache.calcite.sql.validate.SqlValidatorImpl.newValidationError (SqlValidatorImpl.java:5517)
    at org.apache.calcite.sql.validate.DelegatingScope.fullyQualify (DelegatingScope.java:296)
    at org.apache.calcite.sql.validate.SqlValidatorImpl.findTableColumnPair (SqlValidatorImpl.java:3989)
    at org.apache.calcite.sql.validate.SqlValidatorImpl.isRolledUpColumn (SqlValidatorImpl.java:4032)
    at org.apache.calcite.sql.validate.SqlValidatorImpl.checkRollUp (SqlValidatorImpl.java:3945)
    at org.apache.calcite.sql.validate.SqlValidatorImpl.checkRollUp (SqlValidatorImpl.java:3940)
    at org.apache.calcite.sql.validate.SqlValidatorImpl.checkRollUp (SqlValidatorImpl.java:3959)
    at org.apache.calcite.sql.validate.SqlValidatorImpl.checkRollUpInSelectList (SqlValidatorImpl.java:3861)
    at org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect (SqlValidatorImpl.java:3849)

 

Issue Links

• links to: GitHub Pull Request #3797