ConeyLiu commented on code in PR #7886:
URL: https://github.com/apache/iceberg/pull/7886#discussion_r1260838658
##########
spark/v3.4/spark/src/main/java/org/apache/iceberg/spark/SparkV2Filters.java:
##########
@@ -360,10 +399,73 @@ private static boolean hasNoInFilter(Predicate predicate)
{
}
private static boolean isSupportedInPredicate(Predicate predicate) {
- if (!isRef(childAtIndex(predicate, 0))) {
+ if (!couldConvert(childAtIndex(predicate, 0))) {
return false;
} else {
return
Arrays.stream(predicate.children()).skip(1).allMatch(SparkV2Filters::isLiteral);
}
}
+
+ /** Should be called after {@link #couldConvert} passed */
+ private static <T> UnboundTerm<Object> toTerm(T input) {
+ if (input instanceof NamedReference) {
+ return Expressions.ref(SparkUtil.toColumnName((NamedReference) input));
+ } else {
+ return udfToTerm((UserDefinedScalarFunc) input);
+ }
+ }
+
+ private static UnboundTerm<Object> udfToTerm(UserDefinedScalarFunc udf) {
+ switch (udf.name().toLowerCase(Locale.ROOT)) {
+ case "years":
+ Preconditions.checkArgument(
+ udf.children().length == 1, "years function should have only one
children (column)");
+ Preconditions.checkArgument(
+ isRef(udf.children()[0]),
+ "The child of years function should be type of NamedReference");
Review Comment:
Thanks for the good advice.
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