Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/19452#discussion_r144436114
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/StreamingSymmetricHashJoinExec.scala
---
@@ -21,7 +21,7 @@ import java.util.concurrent.TimeUnit.NANOSECONDS
import org.apache.spark.rdd.RDD
import org.apache.spark.sql.catalyst.InternalRow
-import org.apache.spark.sql.catalyst.expressions.{Attribute,
BindReferences, Expression, GenericInternalRow, JoinedRow, Literal,
NamedExpression, PreciseTimestampConversion, UnsafeProjection, UnsafeRow}
+import org.apache.spark.sql.catalyst.expressions.{And, Attribute,
BindReferences, Expression, GenericInternalRow, JoinedRow, Literal,
NamedExpression, PreciseTimestampConversion, PredicateHelper, UnsafeProjection,
UnsafeRow}
--- End diff --
these might be unnecessary
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