JkSelf commented on code in PR #8357:
URL: https://github.com/apache/incubator-gluten/pull/8357#discussion_r1992942270
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cpp/velox/substrait/SubstraitToVeloxPlanValidator.cc:
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@@ -262,7 +262,7 @@ bool SubstraitToVeloxPlanValidator::isAllowedCast(const
TypePtr& fromType, const
}
// Limited support for X to Timestamp.
- if (toType->isTimestamp() && !fromType->isDate()) {
+ if (toType->isTimestamp() && !(fromType->isDate() || fromType->isVarchar()))
{
Review Comment:
@PHILO-HE Why fallback the Varchar type here?
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