From bc53229aaac710d207825f91872851cef6014fa5 Mon Sep 17 00:00:00 2001
From: Lilian Maurel <lilian-github@maurel.biz>
Date: Wed, 1 Oct 2025 16:23:15 +0200
Subject: [PATCH] [PARQUET] Improve memory efficency for compressed writer
 parquet 1.0

---
 parquet/src/column/writer/mod.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/parquet/src/column/writer/mod.rs b/parquet/src/column/writer/mod.rs
index 9eb5fb3b7131..70d02ae03f3a 100644
--- a/parquet/src/column/writer/mod.rs
+++ b/parquet/src/column/writer/mod.rs
@@ -1073,6 +1073,7 @@ impl<'a, E: ColumnValueEncoder> GenericColumnWriter<'a, E> {
                 if let Some(ref mut cmpr) = self.compressor {
                     let mut compressed_buf = Vec::with_capacity(uncompressed_size);
                     cmpr.compress(&buffer[..], &mut compressed_buf)?;
+                    compressed_buf.shrink_to_fit();
                     buffer = compressed_buf;
                 }