Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/19424#discussion_r144234488
--- Diff:
sql/core/src/main/java/org/apache/spark/sql/sources/v2/reader/SupportsPushDownFilters.java
---
@@ -18,6 +18,7 @@
package org.apache.spark.sql.sources.v2.reader;
import org.apache.spark.annotation.InterfaceStability;
+import org.apache.spark.sql.catalyst.expressions.Expression;
--- End diff --
Seems we don't use `Expression` here?
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