jun-he commented on a change in pull request #749: Convert Spark In filter to
iceberg IN Expression
URL: https://github.com/apache/incubator-iceberg/pull/749#discussion_r371617351
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File path: spark/src/main/java/org/apache/iceberg/spark/SparkFilters.java
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@@ -122,11 +122,7 @@ public static Expression convert(Filter filter) {
case IN:
In inFilter = (In) filter;
- Expression in = alwaysFalse();
- for (Object value : inFilter.values()) {
- in = or(in, equal(inFilter.attribute(), convertLiteral(value)));
- }
- return in;
+ return in(inFilter.attribute(), inFilter.values());
Review comment:
Thanks @aokolnychyi for the comments. I will add additional tests for those
cases.
@rdblue I am thinking if we can add this transformation `(in -> or(isNull,
in))` into iceberg's `Expressions` so each caller does not need to repeatedly
implement this logic.
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