From b9a650e1379c0c2bf378cbb2b95d14829e7a7b82 Mon Sep 17 00:00:00 2001
From: Andrew Lamb <andrew@nerdnetworks.org>
Date: Mon, 20 Dec 2021 11:42:39 -0500
Subject: [PATCH] parquet: Use constant for RLE decoder buffer size

---
 parquet/src/encodings/rle.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/parquet/src/encodings/rle.rs b/parquet/src/encodings/rle.rs
index 02a6034d714..f61215f0a5b 100644
--- a/parquet/src/encodings/rle.rs
+++ b/parquet/src/encodings/rle.rs
@@ -310,6 +310,9 @@ impl RleEncoder {
     }
 }
 
+/// Size, in number of `i32s` of buffer to use for RLE batch reading
+const RLE_DECODER_INDEX_BUFFER_SIZE: usize = 1024;
+
 /// A RLE/Bit-Packing hybrid decoder.
 pub struct RleDecoder {
     // Number of bits used to encode the value. Must be between [0, 64].
@@ -319,7 +322,7 @@ pub struct RleDecoder {
     bit_reader: Option<BitReader>,
 
     // Buffer used when `bit_reader` is not `None`, for batch reading.
-    index_buf: Option<Box<[i32; 1024]>>,
+    index_buf: Option<Box<[i32; RLE_DECODER_INDEX_BUFFER_SIZE]>>,
 
     // The remaining number of values in RLE for this run
     rle_left: u32,