From fb2bb77ff0748c6670ab5c015a0ff5e2f0179ce3 Mon Sep 17 00:00:00 2001
From: mwish <maplewish117@gmail.com>
Date: Wed, 31 Jan 2024 01:05:21 +0800
Subject: [PATCH] fix stupid error

---
 cpp/src/arrow/io/compressed.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cpp/src/arrow/io/compressed.cc b/cpp/src/arrow/io/compressed.cc
index 6d4c432ef7111..9e467f3bc8b61 100644
--- a/cpp/src/arrow/io/compressed.cc
+++ b/cpp/src/arrow/io/compressed.cc
@@ -272,7 +272,7 @@ class CompressedInputStream::Impl {
     int64_t compressed_avail = compressed_ ? compressed_->size() - compressed_pos_ : 0;
     if (compressed_avail == 0) {
       // Ensure compressed_ buffer is allocated with kChunkSize.
-      if (supports_zero_copy_from_raw_) {
+      if (!supports_zero_copy_from_raw_) {
         if (compressed_for_non_zero_copy_ == nullptr) {
           ARROW_ASSIGN_OR_RAISE(compressed_for_non_zero_copy_,
                                 AllocateResizableBuffer(kChunkSize, pool_));