From 1ba8c9abf00bbcfb95f671bd4b18d458a9e3baa2 Mon Sep 17 00:00:00 2001
From: George Papanikolaou <g3orge.app@gmail.com>
Date: Wed, 27 Mar 2024 14:45:52 +0200
Subject: [PATCH] Do not try to uncompress pages that are not compressed

---
 page_v2.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/page_v2.go b/page_v2.go
index ea9e73f..4a91a50 100644
--- a/page_v2.go
+++ b/page_v2.go
@@ -122,6 +122,10 @@ func (dp *dataPageReaderV2) read(r io.Reader, ph *parquet.PageHeader, codec parq
 		}
 	}
 
+	if !ph.DataPageHeaderV2.IsCompressed {
+		return dp.valuesDecoder.init(bytes.NewReader(dataPageBlock[levelsSize:]))
+	}
+
 	reader, err := newBlockReader(dataPageBlock[levelsSize:], codec, ph.GetCompressedPageSize()-levelsSize, ph.GetUncompressedPageSize()-levelsSize, dp.alloc)
 	if err != nil {
 		return err