New header varatt.h split off from postgres.h

This new header contains all the variable-length data types support
(TOAST support) from postgres.h, which isn't needed by large parts of
the backend code.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://www.postgresql.org/message-id/flat/ddcce239-0f29-6e62-4b47-1f8ca742addf%40enterprisedb.com

src/backend/utils/adt/ascii.c

@@ -14,6 +14,7 @@
 #include "mb/pg_wchar.h"
 #include "utils/ascii.h"
 #include "utils/builtins.h"
+#include "varatt.h"
 
 static void pg_to_ascii(unsigned char *src, unsigned char *src_end,
 						unsigned char *dest, int enc);

src/backend/utils/adt/char.c

@@ -19,6 +19,7 @@
 
 #include "libpq/pqformat.h"
 #include "utils/builtins.h"
+#include "varatt.h"
 
 #define ISOCTAL(c)   (((c) >= '0') && ((c) <= '7'))
 #define TOOCTAL(c)   ((c) + '0')

src/backend/utils/adt/cryptohashfuncs.c

@@ -17,6 +17,7 @@
 #include "common/md5.h"
 #include "common/sha2.h"
 #include "utils/builtins.h"
+#include "varatt.h"
 
 
 /*

src/backend/utils/adt/encode.c

@@ -18,6 +18,7 @@
 #include "mb/pg_wchar.h"
 #include "utils/builtins.h"
 #include "utils/memutils.h"
+#include "varatt.h"
 
 
 /*

src/backend/utils/adt/formatting.c

@@ -88,6 +88,7 @@
 #include "utils/memutils.h"
 #include "utils/numeric.h"
 #include "utils/pg_locale.h"
+#include "varatt.h"
 
 
 /* ----------

src/backend/utils/adt/geo_ops.c

@@ -35,6 +35,7 @@
 #include "utils/float.h"
 #include "utils/fmgrprotos.h"
 #include "utils/geo_decls.h"
+#include "varatt.h"
 
 /*
  * * Type constructors have this form:

src/backend/utils/adt/like.c

@@ -24,6 +24,7 @@
 #include "miscadmin.h"
 #include "utils/builtins.h"
 #include "utils/pg_locale.h"
+#include "varatt.h"
 
 
 #define LIKE_TRUE						1

src/backend/utils/adt/network_gist.c

@@ -51,6 +51,7 @@
 #include "access/stratnum.h"
 #include "utils/builtins.h"
 #include "utils/inet.h"
+#include "varatt.h"
 
 /*
  * Operator strategy numbers used in the GiST inet_ops opclass

src/backend/utils/adt/network_spgist.c

@@ -37,6 +37,7 @@
 #include "catalog/pg_type.h"
 #include "utils/builtins.h"
 #include "utils/inet.h"
+#include "varatt.h"
 
 
 static int	inet_spg_node_number(const inet *val, int commonbits);

src/backend/utils/adt/oracle_compat.c

@@ -21,6 +21,7 @@
 #include "utils/builtins.h"
 #include "utils/formatting.h"
 #include "utils/memutils.h"
+#include "varatt.h"
 
 
 static text *dotrim(const char *string, int stringlen,

src/backend/utils/adt/quote.c

@@ -14,6 +14,7 @@
 #include "postgres.h"
 
 #include "utils/builtins.h"
+#include "varatt.h"
 
 
 /*

src/backend/utils/adt/rangetypes.c

@@ -42,6 +42,7 @@
 #include "utils/lsyscache.h"
 #include "utils/rangetypes.h"
 #include "utils/timestamp.h"
+#include "varatt.h"
 
 
 /* fn_extra cache entry for one of the range I/O functions */

src/backend/utils/adt/rangetypes_typanalyze.c

@@ -31,6 +31,7 @@
 #include "utils/lsyscache.h"
 #include "utils/rangetypes.h"
 #include "utils/multirangetypes.h"
+#include "varatt.h"
 
 static int	float8_qsort_cmp(const void *a1, const void *a2, void *arg);
 static int	range_bound_qsort_cmp(const void *a1, const void *a2, void *arg);

src/backend/utils/adt/tsginidx.c

@@ -19,6 +19,7 @@
 #include "tsearch/ts_type.h"
 #include "tsearch/ts_utils.h"
 #include "utils/builtins.h"
+#include "varatt.h"
 
 
 Datum

src/backend/utils/adt/tsquery.c

@@ -23,6 +23,7 @@
 #include "utils/builtins.h"
 #include "utils/memutils.h"
 #include "utils/pg_crc.h"
+#include "varatt.h"
 
 /* FTS operator priorities, see ts_type.h */
 const int	tsearch_op_priority[OP_COUNT] =

src/backend/utils/adt/tsquery_cleanup.c

@@ -17,6 +17,7 @@
 
 #include "miscadmin.h"
 #include "tsearch/ts_utils.h"
+#include "varatt.h"
 
 typedef struct NODE
 {

src/backend/utils/adt/tsquery_op.c

@@ -17,6 +17,7 @@
 #include "lib/qunique.h"
 #include "tsearch/ts_utils.h"
 #include "utils/builtins.h"
+#include "varatt.h"
 
 Datum
 tsquery_numnode(PG_FUNCTION_ARGS)

src/backend/utils/adt/tsquery_util.c

@@ -16,6 +16,7 @@
 
 #include "miscadmin.h"
 #include "tsearch/ts_utils.h"
+#include "varatt.h"
 
 /*
  * Build QTNode tree for a tsquery given in QueryItem array format.

src/backend/utils/adt/tsvector.c

@@ -20,6 +20,7 @@
 #include "tsearch/ts_utils.h"
 #include "utils/builtins.h"
 #include "utils/memutils.h"
+#include "varatt.h"
 
 typedef struct
 {

src/backend/utils/cache/attoptcache.c

@@ -22,6 +22,7 @@
 #include "utils/hsearch.h"
 #include "utils/inval.h"
 #include "utils/syscache.h"
+#include "varatt.h"
 
 
 /* Hash table for information about each attribute's options */

src/backend/utils/cache/spccache.c

@@ -29,6 +29,7 @@
 #include "utils/inval.h"
 #include "utils/spccache.h"
 #include "utils/syscache.h"
+#include "varatt.h"
 
 
 /* Hash table for information about each tablespace */

src/backend/utils/mb/mbutils.c

@@ -40,6 +40,7 @@
 #include "utils/builtins.h"
 #include "utils/memutils.h"
 #include "utils/syscache.h"
+#include "varatt.h"
 
 /*
  * We maintain a simple linked list caching the fmgr lookup info for the