julianhyde commented on code in PR #3677:
URL: https://github.com/apache/calcite/pull/3677#discussion_r1501127168
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core/src/main/java/org/apache/calcite/adapter/enumerable/RexToLixTranslator.java:
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@@ -647,58 +541,225 @@ private static Expression checkExpressionPadTruncate(
}
}
+ private Expression translateCastToDate(RelDataType sourceType,
+ Expression operand, ConstantExpression format,
+ Supplier<Expression> defaultExpression) {
+
+ switch (sourceType.getSqlTypeName()) {
+ case CHAR:
+ case VARCHAR:
+ // If format string is supplied, parse formatted string into date
+ return Expressions.isConstantNull(format)
+ ? Expressions.call(BuiltInMethod.STRING_TO_DATE.method, operand)
+ :
Expressions.call(Expressions.new_(BuiltInMethod.PARSE_DATE.method.getDeclaringClass()),
Review Comment:
A few other SQL functions are implemented by non-static methods (generally
to allow caching of expensive state). Do whatever those functions do.
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