[jira] [Created] (CALCITE-5410) Assertion error on PERCENT_REMAINDER operator with DECIMAL type

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

Aleksey Plekhanov created CALCITE-5410:
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             Summary: Assertion error on PERCENT_REMAINDER operator with DECIMAL type
                 Key: CALCITE-5410
                 URL: https://issues.apache.org/jira/browse/CALCITE-5410
             Project: Calcite
          Issue Type: Bug
            Reporter: Aleksey Plekhanov
            Assignee: Aleksey Plekhanov


Queries like:
{code:java}
SELECT 1.0 % 2 {code}
Fail on planning with:
{noformat}
java.lang.AssertionError: Conversion to relational algebra failed to preserve datatypes:
validated type:
RecordType(INTEGER NOT NULL EXPR$0) NOT NULL
converted type:
RecordType(DECIMAL(2, 1) NOT NULL EXPR$0) NOT NULL
     at org.apache.calcite.sql2rel.SqlToRelConverter.checkConvertedType(SqlToRelConverter.java:494)
     at org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:609)
     at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:257){noformat}
It happens because {{PERCENT_REMAINDER}} operator replaced with {{MOD}} operator by 

{{StandardConvertletTable}} and these two operators have different return-type inference settings. So, different types are inferenced at SQL validation phase and SqlToRel converter phase.

 



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