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https://issues.apache.org/jira/browse/CALCITE-7195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Mihai Budiu resolved CALCITE-7195.
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Fix Version/s: 1.41.0
Assignee: Mihai Budiu
Resolution: Fixed
Fixed in
https://github.com/apache/calcite/commit/73c5400111b2ba502bf28d20aafbb609520ab56b
Thank you for the review [~asolimando]
> COALESCE type inference rejects legal arguments
> -----------------------------------------------
>
> Key: CALCITE-7195
> URL: https://issues.apache.org/jira/browse/CALCITE-7195
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.40.0
> Reporter: Mihai Budiu
> Assignee: Mihai Budiu
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.41.0
>
>
> The following test fails in SqlValidatorTest:
> {code:java}
> final String sql2 = "select coalesce(NULL, ARRAY[1])";
> sql(sql2)
> .withValidatorCallRewrite(false)
> .ok();
> {code}
> The top of the stack trace is:
> {code}
> org.apache.calcite.sql.validate.SqlValidatorException: Parameters must be of
> the same type
> at
> java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:67)
> at
> java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
> at
> java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:484)
> at
> org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:511)
> at org.apache.calcite.runtime.Resources$ExInst.ex(Resources.java:605)
> at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:960)
> at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:945)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.newValidationError(SqlValidatorImpl.java:5960)
> at
> org.apache.calcite.sql.SqlCallBinding.newValidationError(SqlCallBinding.java:421)
> at
> org.apache.calcite.sql.type.SameOperandTypeChecker.checkOperandTypesImpl(SameOperandTypeChecker.java:102)
> at
> org.apache.calcite.sql.type.SameOperandTypeChecker.checkOperandTypes(SameOperandTypeChecker.java:61)
> at
> org.apache.calcite.sql.SqlOperator.checkOperandTypes(SqlOperator.java:784)
> {code}
> This bug is masked by the fact that in general the validator rewrites
> COALESCE as CASE.
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