[CF 5950] don't include tableam.h in nbtree.h

This branch was automatically generated by a robot using patches from an
email thread registered at:

https://commitfest.postgresql.org/patch/5950

The branch will be overwritten each time a new patch version is posted to
the thread, and also periodically to check for bitrot caused by changes
on the master branch.

Patch(es): https://www.postgresql.org/message-id/[email protected]
Author(s): Álvaro Herrera

Author: Commitfest Bot

contrib/btree_gist/btree_bool.c

@@ -6,6 +6,7 @@
 #include "btree_gist.h"
 #include "btree_utils_num.h"
 #include "utils/sortsupport.h"
+#include "utils/rel.h"
 
 typedef struct boolkey
 {

contrib/btree_gist/btree_cash.c

@@ -8,6 +8,7 @@
 #include "common/int.h"
 #include "utils/cash.h"
 #include "utils/sortsupport.h"
+#include "utils/rel.h"
 
 typedef struct
 {

contrib/btree_gist/btree_date.c

@@ -8,6 +8,7 @@
 #include "utils/fmgrprotos.h"
 #include "utils/date.h"
 #include "utils/sortsupport.h"
+#include "utils/rel.h"
 
 typedef struct
 {

contrib/btree_gist/btree_enum.c

@@ -9,6 +9,7 @@
 #include "utils/fmgrprotos.h"
 #include "utils/fmgroids.h"
 #include "utils/sortsupport.h"
+#include "utils/rel.h"
 
 /* enums are really Oids, so we just use the same structure */
 

contrib/btree_gist/btree_float4.c

@@ -7,6 +7,7 @@
 #include "btree_utils_num.h"
 #include "utils/float.h"
 #include "utils/sortsupport.h"
+#include "utils/rel.h"
 
 typedef struct float4key
 {

contrib/btree_gist/btree_float8.c

@@ -7,6 +7,7 @@
 #include "btree_utils_num.h"
 #include "utils/float.h"
 #include "utils/sortsupport.h"
+#include "utils/rel.h"
 
 typedef struct float8key
 {

contrib/btree_gist/btree_inet.c

@@ -8,6 +8,7 @@
 #include "catalog/pg_type.h"
 #include "utils/builtins.h"
 #include "utils/sortsupport.h"
+#include "utils/rel.h"
 
 typedef struct inetkey
 {

contrib/btree_gist/btree_int2.c

@@ -7,6 +7,7 @@
 #include "btree_utils_num.h"
 #include "common/int.h"
 #include "utils/sortsupport.h"
+#include "utils/rel.h"
 
 typedef struct int16key
 {

contrib/btree_gist/btree_int4.c

@@ -6,6 +6,7 @@
 #include "btree_utils_num.h"
 #include "common/int.h"
 #include "utils/sortsupport.h"
+#include "utils/rel.h"
 
 typedef struct int32key
 {

contrib/btree_gist/btree_int8.c

@@ -7,6 +7,7 @@
 #include "btree_utils_num.h"
 #include "common/int.h"
 #include "utils/sortsupport.h"
+#include "utils/rel.h"
 
 typedef struct int64key
 {