From: Robert Haas <rhaas@postgresql.org>
Date: Fri, 15 Oct 2021 18:59:09 +0000 (-0400)
Subject: divide conveyor.h into sections
X-Git-Url: http://git.postgresql.org/gitweb/static/gitweb.js?a=commitdiff_plain;h=c81e8c921a5549005169b7b847fec9bebd2b61c7;p=users%2Frhaas%2Fpostgres.git

divide conveyor.h into sections
---

diff --git a/src/include/access/conveyor.h b/src/include/access/conveyor.h
index 9ab7c22a82..548e09a22b 100644
--- a/src/include/access/conveyor.h
+++ b/src/include/access/conveyor.h
@@ -23,6 +23,7 @@
 struct ConveyorBelt;
 typedef struct ConveyorBelt ConveyorBelt;
 
+/* Routines to create a new conveyor belt, or open an existing one. */
 extern ConveyorBelt *ConveyorBeltInitialize(Relation rel,
 											ForkNumber fork,
 											uint16 pages_per_segment,
@@ -30,16 +31,22 @@ extern ConveyorBelt *ConveyorBeltInitialize(Relation rel,
 extern ConveyorBelt *ConveyorBeltOpen(Relation rel,
 									  ForkNumber fork,
 									  MemoryContext mcxt);
+
+/* Routines to inserting new data into a conveyor belt. */
 extern Buffer ConveyorBeltGetNewPage(ConveyorBelt *cb, CBPageNo *pageno);
 extern void ConveyorBeltPerformInsert(ConveyorBelt *cb, Buffer buffer,
 									  bool page_std);
 extern void ConveyorBeltCleanupInsert(ConveyorBelt *cb, Buffer buffer);
+
+/* Routines for reading data from a conveyor belt. */
 extern Buffer ConveyorBeltReadBuffer(ConveyorBelt *cb, CBPageNo pageno,
 									 int mode,
 									 BufferAccessStrategy strategy);
 extern void ConveyorBeltGetBounds(ConveyorBelt *cb,
 								  CBPageNo *oldest_logical_page,
 								  CBPageNo *next_logical_page);
+
+/* Routines for removing old data from a conveyor belt. */
 extern void ConveyorBeltLogicalTruncate(ConveyorBelt *cb,
 										CBPageNo oldest_keeper);
 extern void ConveyorBeltVacuum(ConveyorBelt *cb);