void reduce(RexBuilder rexBuilder, java.util.List<RexNode> constExps, java.util.List<RexNode> reducedValues)Reduces expressions, and writes their results into
If an expression cannot be reduced, writes the original expression. For example,
CAST('abc' AS INTEGER)gives an error when executed, so the executor ignores the error and writes the original expression.
rexBuilder- Rex builder
constExps- Expressions to be reduced
reducedValues- List to which reduced expressions are appended