Split index xlog headers from other private index headers.

The xlog-specific headers need to be included in both frontend code -
specifically, pg_waldump - and the backend, but the remainder of the
private headers for each index are only needed by the backend.  By
splitting the xlog stuff out into separate headers, pg_waldump pulls
in fewer backend headers, which is a good thing.

Patch by me, reviewed by Michael Paquier and Andres Freund, per a
complaint from Dilip Kumar.

Discussion: http://postgr.es/m/CA+TgmoZ=F=GkxV0YEv-A8tb+AEGy_Qa7GSiJ8deBKFATnzfEug@mail.gmail.com

src/backend/access/gin/ginbtree.c

@@ -15,6 +15,7 @@
 #include "postgres.h"
 
 #include "access/gin_private.h"
+#include "access/ginxlog.h"
 #include "access/xloginsert.h"
 #include "miscadmin.h"
 #include "utils/memutils.h"

src/backend/access/gin/gindatapage.c

@@ -15,6 +15,7 @@
 #include "postgres.h"
 
 #include "access/gin_private.h"
+#include "access/ginxlog.h"
 #include "access/xloginsert.h"
 #include "lib/ilist.h"
 #include "miscadmin.h"

src/backend/access/gin/ginentrypage.c

@@ -15,6 +15,7 @@
 #include "postgres.h"
 
 #include "access/gin_private.h"
+#include "access/ginxlog.h"
 #include "access/xloginsert.h"
 #include "miscadmin.h"
 #include "utils/rel.h"

src/backend/access/gin/ginfast.c

@@ -19,6 +19,7 @@
 #include "postgres.h"
 
 #include "access/gin_private.h"
+#include "access/ginxlog.h"
 #include "access/xloginsert.h"
 #include "access/xlog.h"
 #include "commands/vacuum.h"

src/backend/access/gin/gininsert.c

@@ -15,6 +15,7 @@
 #include "postgres.h"
 
 #include "access/gin_private.h"
+#include "access/ginxlog.h"
 #include "access/xloginsert.h"
 #include "catalog/index.h"
 #include "miscadmin.h"

src/backend/access/gin/ginutil.c

@@ -15,6 +15,7 @@
 #include "postgres.h"
 
 #include "access/gin_private.h"
+#include "access/ginxlog.h"
 #include "access/reloptions.h"
 #include "access/xloginsert.h"
 #include "catalog/pg_collation.h"

src/backend/access/gin/ginvacuum.c

@@ -15,6 +15,7 @@
 #include "postgres.h"
 
 #include "access/gin_private.h"
+#include "access/ginxlog.h"
 #include "access/xloginsert.h"
 #include "commands/vacuum.h"
 #include "miscadmin.h"

src/backend/access/gin/ginxlog.c

@@ -15,6 +15,7 @@
 
 #include "access/bufmask.h"
 #include "access/gin_private.h"
+#include "access/ginxlog.h"
 #include "access/xlogutils.h"
 #include "utils/memutils.h"
 

src/backend/access/gist/gistbuild.c

@@ -18,6 +18,7 @@
 
 #include "access/genam.h"
 #include "access/gist_private.h"
+#include "access/gistxlog.h"
 #include "access/xloginsert.h"
 #include "catalog/index.h"
 #include "miscadmin.h"

src/backend/access/gist/gistxlog.c

@@ -15,6 +15,7 @@
 
 #include "access/bufmask.h"
 #include "access/gist_private.h"
+#include "access/gistxlog.h"
 #include "access/xloginsert.h"
 #include "access/xlogutils.h"
 #include "utils/memutils.h"

src/backend/access/nbtree/nbtinsert.c

@@ -17,6 +17,7 @@
 
 #include "access/heapam.h"
 #include "access/nbtree.h"
+#include "access/nbtxlog.h"
 #include "access/transam.h"
 #include "access/xloginsert.h"
 #include "miscadmin.h"

src/backend/access/nbtree/nbtpage.c

@@ -23,6 +23,7 @@
 #include "postgres.h"
 
 #include "access/nbtree.h"
+#include "access/nbtxlog.h"
 #include "access/transam.h"
 #include "access/xlog.h"
 #include "access/xloginsert.h"

src/backend/access/nbtree/nbtxlog.c

@@ -17,6 +17,7 @@
 #include "access/bufmask.h"
 #include "access/heapam_xlog.h"
 #include "access/nbtree.h"
+#include "access/nbtxlog.h"
 #include "access/transam.h"
 #include "access/xlog.h"
 #include "access/xlogutils.h"

src/backend/access/rmgrdesc/gindesc.c

@@ -14,7 +14,7 @@
  */
 #include "postgres.h"
 
-#include "access/gin_private.h"
+#include "access/ginxlog.h"
 #include "access/xlogutils.h"
 #include "lib/stringinfo.h"
 #include "storage/relfilenode.h"

src/backend/access/rmgrdesc/gistdesc.c

@@ -14,7 +14,7 @@
  */
 #include "postgres.h"
 
-#include "access/gist_private.h"
+#include "access/gistxlog.h"
 #include "lib/stringinfo.h"
 #include "storage/relfilenode.h"
 

src/backend/access/rmgrdesc/nbtdesc.c

@@ -14,7 +14,7 @@
  */
 #include "postgres.h"
 
-#include "access/nbtree.h"
+#include "access/nbtxlog.h"
 
 void
 btree_desc(StringInfo buf, XLogReaderState *record)

src/backend/access/rmgrdesc/spgdesc.c

@@ -14,7 +14,7 @@
  */
 #include "postgres.h"
 
-#include "access/spgist_private.h"
+#include "access/spgxlog.h"
 
 void
 spg_desc(StringInfo buf, XLogReaderState *record)

src/backend/access/spgist/spgdoinsert.c

@@ -17,6 +17,7 @@
 
 #include "access/genam.h"
 #include "access/spgist_private.h"
+#include "access/spgxlog.h"
 #include "access/xloginsert.h"
 #include "miscadmin.h"
 #include "storage/bufmgr.h"

src/backend/access/spgist/spginsert.c

@@ -18,6 +18,7 @@
 
 #include "access/genam.h"
 #include "access/spgist_private.h"
+#include "access/spgxlog.h"
 #include "access/xlog.h"
 #include "access/xloginsert.h"
 #include "catalog/index.h"

src/backend/access/spgist/spgvacuum.c

@@ -17,6 +17,7 @@
 
 #include "access/genam.h"
 #include "access/spgist_private.h"
+#include "access/spgxlog.h"
 #include "access/transam.h"
 #include "access/xloginsert.h"
 #include "catalog/storage_xlog.h"

src/backend/access/spgist/spgxlog.c

@@ -16,6 +16,7 @@
 
 #include "access/bufmask.h"
 #include "access/spgist_private.h"
+#include "access/spgxlog.h"
 #include "access/transam.h"
 #include "access/xlog.h"
 #include "access/xlogutils.h"

src/backend/access/transam/rmgr.c

@@ -9,15 +9,15 @@
 
 #include "access/clog.h"
 #include "access/commit_ts.h"
-#include "access/gin.h"
-#include "access/gist_private.h"
+#include "access/ginxlog.h"
+#include "access/gistxlog.h"
 #include "access/generic_xlog.h"
 #include "access/hash_xlog.h"
 #include "access/heapam_xlog.h"
 #include "access/brin_xlog.h"
 #include "access/multixact.h"
-#include "access/nbtree.h"
-#include "access/spgist.h"
+#include "access/nbtxlog.h"
+#include "access/spgxlog.h"
 #include "access/xact.h"
 #include "access/xlog_internal.h"
 #include "catalog/storage_xlog.h"