From a6b843c04d4a194b1ef44639f64f4640ec5a22a9 Mon Sep 17 00:00:00 2001
From: kangkaisen <kangkaisen@apache.org>
Date: Wed, 9 Oct 2019 22:07:27 +0800
Subject: [PATCH] Fix OrdinalPageIndex header size (#1938)

---
 be/src/olap/rowset/segment_v2/ordinal_page_index.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/be/src/olap/rowset/segment_v2/ordinal_page_index.h b/be/src/olap/rowset/segment_v2/ordinal_page_index.h
index 95461b7e9cd7c4..4c39c8ff6f75d3 100644
--- a/be/src/olap/rowset/segment_v2/ordinal_page_index.h
+++ b/be/src/olap/rowset/segment_v2/ordinal_page_index.h
@@ -39,12 +39,15 @@ namespace segment_v2 {
 // index_pair:
 //      Ordinal (4 Bytes)
 //      PagePointer (8 Bytes)
+
+static const uint32_t ORDINAL_PAGE_INDEX_HEADER_SIZE = 4;
+
 class OrdinalPageIndexBuilder {
 public:
     OrdinalPageIndexBuilder() : _num_pages(0) {
         _buffer.reserve(4 * 1024);
         // reserve space for number of pages
-        _buffer.resize(4);
+        _buffer.resize(ORDINAL_PAGE_INDEX_HEADER_SIZE);
     }
 
     void append_entry(rowid_t rid, const PagePointer& page) {
@@ -119,7 +122,7 @@ class OrdinalPageIndex {
     }
 
 private:
-    uint32_t _header_size() const { return 8; }
+    uint32_t _header_size() const { return ORDINAL_PAGE_INDEX_HEADER_SIZE; }
 
 private:
     friend OrdinalPageIndexIterator;