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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