dongjoon-hyun commented on code in PR #46485:
URL: https://github.com/apache/spark/pull/46485#discussion_r1596258635
##########
sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/VectorizedColumnReader.java:
##########
@@ -353,8 +353,9 @@ private void initDataReader(
throw new IOException("could not read page in col " + descriptor, e);
}
// for PARQUET-246 (See VectorizedDeltaByteArrayReader.setPreviousValues)
- if (CorruptDeltaByteArrays.requiresSequentialReads(writerVersion,
dataEncoding) &&
- previousReader instanceof RequiresPreviousReader) {
+ if (CorruptDeltaByteArrays.requiresSequentialReads(writerVersion,
dataEncoding)
+ && previousReader != null
+ && dataColumn instanceof RequiresPreviousReader) {
Review Comment:
Could you file a JIRA issue, @yutsareva ?
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