MaxGekk commented on code in PR #37065:
URL: https://github.com/apache/spark/pull/37065#discussion_r922839077
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sql/core/src/main/scala/org/apache/spark/sql/execution/columnar/compression/compressionSchemes.scala:
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@@ -421,7 +421,7 @@ private[columnar] case object DictionaryEncoding extends
CompressionScheme {
override def compress(from: ByteBuffer, to: ByteBuffer): ByteBuffer = {
if (overflow) {
Review Comment:
Then, please, replace `if (overflow) {` by an assert with a comment which
explains why the condition cannot be false. Also don't forget to remove
`useDictionaryEncodingWhenDictionaryOverflowError()`.
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