From 728c1cbf97ef89d1041218240bb90b702911e51d Mon Sep 17 00:00:00 2001
From: ggershinsky <ggershinsky@users.noreply.github.com>
Date: Tue, 9 May 2023 10:17:40 +0300
Subject: [PATCH] PARQUET-2297: Skip delta problem check

---
 .../java/org/apache/parquet/hadoop/ParquetRecordReader.java  | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/parquet-hadoop/src/main/java/org/apache/parquet/hadoop/ParquetRecordReader.java b/parquet-hadoop/src/main/java/org/apache/parquet/hadoop/ParquetRecordReader.java
index e46ccdd156..b009810206 100644
--- a/parquet-hadoop/src/main/java/org/apache/parquet/hadoop/ParquetRecordReader.java
+++ b/parquet-hadoop/src/main/java/org/apache/parquet/hadoop/ParquetRecordReader.java
@@ -173,7 +173,10 @@ private void initializeInternalReader(ParquetInputSplit split, Configuration con
       }
     }
 
-    if (!reader.getRowGroups().isEmpty()) {
+    if (!reader.getRowGroups().isEmpty() &&
+      // Encrypted files (parquet-mr 1.12+) can't have the delta encoding problem (resolved in parquet-mr 1.8)
+      reader.getFileMetaData().getEncryptionType() != FileMetaData.EncryptionType.ENCRYPTED_FOOTER &&
+      reader.getFileMetaData().getEncryptionType() != FileMetaData.EncryptionType.PLAINTEXT_FOOTER) {
       checkDeltaByteArrayProblem(
           reader.getFooter().getFileMetaData(), configuration,
           reader.getRowGroups().get(0));