fix: remove HeaderPage to avoid confusion (#511)

Signed-off-by: Alex Chi <[email protected]>

Author: skyzh

src/include/storage/page/b_plus_tree_page.h

@@ -56,12 +56,6 @@ class BPlusTreePage {
   void SetMaxSize(int max_size);
   auto GetMinSize() const -> int;
 
-  auto GetParentPageId() const -> page_id_t;
-  void SetParentPageId(page_id_t parent_page_id);
-
-  auto GetPageId() const -> page_id_t;
-  void SetPageId(page_id_t page_id);
-
  private:
   // member variable, attributes that both internal and leaf page share
   IndexPageType page_type_ __attribute__((__unused__));

src/include/storage/page/header_page.h

@@ -7,7 +7,6 @@ add_library(
     hash_table_block_page.cpp
     hash_table_bucket_page.cpp
     hash_table_directory_page.cpp
-    header_page.cpp
     page_guard.cpp
     table_page.cpp)
 

src/storage/page/CMakeLists.txt

@@ -40,16 +40,4 @@ void BPlusTreePage::SetMaxSize(int size) {}
  */
 auto BPlusTreePage::GetMinSize() const -> int { return 0; }
 
-/*
- * Helper methods to get/set parent page id
- */
-auto BPlusTreePage::GetParentPageId() const -> page_id_t { return 0; }
-void BPlusTreePage::SetParentPageId(page_id_t parent_page_id) {}
-
-/*
- * Helper methods to get/set self page id
- */
-auto BPlusTreePage::GetPageId() const -> page_id_t { return 0; }
-void BPlusTreePage::SetPageId(page_id_t page_id) {}
-
 }  // namespace bustub

src/storage/page/b_plus_tree_page.cpp

@@ -24,7 +24,6 @@
 #include "common/exception.h"
 #include "common/logger.h"
 #include "common/util/string_util.h"
-#include "storage/page/header_page.h"
 
 namespace bustub {