From ffe38b0286be8e0cbc48aed091fb119a95f0366c Mon Sep 17 00:00:00 2001
From: Jeremy Aguilon <jeraguilon@gmail.com>
Date: Thu, 30 May 2024 00:47:01 +0900
Subject: [PATCH] lint

---
 cpp/src/arrow/acero/unmaterialized_table.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/cpp/src/arrow/acero/unmaterialized_table.h b/cpp/src/arrow/acero/unmaterialized_table.h
index 6444df6d463a2..d2d97a2e0afb9 100644
--- a/cpp/src/arrow/acero/unmaterialized_table.h
+++ b/cpp/src/arrow/acero/unmaterialized_table.h
@@ -234,13 +234,13 @@ class UnmaterializedCompositeTable {
   arrow::Result<std::vector<CompositeEntry>> FlattenSlices(int table_index) {
     std::vector<CompositeEntry> flattened_blocks;
 
-    arrow::RecordBatch* active_rb = nullptr;
+    arrow::RecordBatch* active_rb = NULL;
     size_t start = -1;
     size_t end = -1;
 
     for (const auto& slice : slices) {
       const auto& [batch, block_start, block_end] = slice.components[table_index];
-      if (active_rb == nullptr) {
+      if (active_rb == NULL) {
         active_rb = batch;
         start = block_start;
         end = block_end;
@@ -252,7 +252,7 @@ class UnmaterializedCompositeTable {
         start = block_start;
         end = block_end;
       }
-      DCHECK_NE(active_rb, nullptr);
+      DCHECK_NE(active_rb, NULL);
     }
     // flush the last batch
     flattened_blocks.push_back({active_rb, start, end});