Steven Talbot created CALCITE-5207:
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Summary: SubstitutionVisitor should not canonicalize DatetimePlus
Key: CALCITE-5207
URL: https://issues.apache.org/jira/browse/CALCITE-5207
Project: Calcite
Issue Type: Bug
Reporter: Steven Talbot
>From CALCITE-3914, "canonicalizeNode" attempts to canonicalize any
>SqlKind.PLUS rexCall. Unfortunately, this includes a
>`SqlDatetimePlusOperator`. When the canonicalize causes the operand order to
>reverse, this will result in an exception in the line
{code:java}
rexBuilder.makeCall(call.getOperator(), right, left) {code}
in the operators return type inference
{code:java}
final IntervalSqlType unitType =
(IntervalSqlType) opBinding.getOperandType(1) {code}
A call like the following should repro when used in tests like those in
https://github.com/apache/calcite/commit/ee1a9d2cacb67da4c5d7e8f0441c94a40dc69d66:
{code:java}
final RexNode ts_plus_interval =
rexBuilder.makeCall(
SqlStdOperatorTable.DATETIME_PLUS,
rexBuilder.makeTimestampLiteral(new TimestampString("2018-01-01
00:00:00"), 0),
rexBuilder.makeIntervalLiteral(
new BigDecimal(12),
new SqlIntervalQualifier(TimeUnit.MONTH, null,
SqlParserPos.ZERO)
)); {code}
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