From 97c229851c01ed8994f15a0eba7bfc575eccc0bd Mon Sep 17 00:00:00 2001
From: mwish <maplewish117@gmail.com>
Date: Tue, 14 Jan 2025 23:27:27 +0800
Subject: [PATCH] fix cleanup handling

---
 cpp/src/parquet/statistics.cc | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/cpp/src/parquet/statistics.cc b/cpp/src/parquet/statistics.cc
index e54b94f1a861a..0371336eb4807 100644
--- a/cpp/src/parquet/statistics.cc
+++ b/cpp/src/parquet/statistics.cc
@@ -407,8 +407,18 @@ optional<std::pair<FLBA, FLBA>> CleanStatistic(std::pair<FLBA, FLBA> min_max,
 
 optional<std::pair<ByteArray, ByteArray>> CleanStatistic(
     std::pair<ByteArray, ByteArray> min_max, LogicalType::Type::type) {
-  if (min_max.first.ptr == nullptr || min_max.second.ptr == nullptr) {
-    return ::std::nullopt;
+  static ByteArray empty("");
+  if (min_max.first.ptr == nullptr) {
+    if (min_max.first.len != 0) {
+      return ::std::nullopt;
+    }
+    min_max.first = empty;
+  }
+  if (min_max.second.ptr == nullptr) {
+    if (min_max.second.len != 0) {
+      return ::std::nullopt;
+    }
+    min_max.second = empty;
   }
   return min_max;
 }