twalthr commented on a change in pull request #6484: [FLINK-9134] [table]
upgrade Calcite dependency to 1.17
URL: https://github.com/apache/flink/pull/6484#discussion_r207497521
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File path:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/catalog/ExternalCatalogSchema.scala
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@@ -20,7 +20,10 @@ package org.apache.flink.table.catalog
import java.util.{Collection => JCollection, Collections => JCollections,
LinkedHashSet => JLinkedHashSet, Set => JSet}
+import com.google.common.collect.ImmutableSet
+import jdk.nashorn.internal.ir.annotations.Immutable
Review comment:
Remove unused import.
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