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Consolidate ItemPointer to Datum conversion functions

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Instead of defining the same set of macros several times, define it
once in an appropriate header file.  In passing, convert to inline
functions.

Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>
Discussion: https://www.postgresql.org/message-id/flat/844dd4c5-e5a1-3df1-bfaf-d1e1c2a16e45%40enterprisedb.com
This commit is contained in:
Peter Eisentraut 2023-02-13 09:50:14 +01:00
parent 7da51590ed
commit bd944884e9
5 changed files with 20 additions and 12 deletions
contrib/pageinspect
btreefuncs.cginfuncs.cgistfuncs.c
src
backend/utils/adt
tid.c
include/storage
itemptr.h

2
contrib/pageinspect/btreefuncs.c

@ -50,8 +50,6 @@ PG_FUNCTION_INFO_V1(bt_multi_page_stats);
#define IS_INDEX(r) ((r)->rd_rel->relkind == RELKIND_INDEX)
#define IS_BTREE(r) ((r)->rd_rel->relam == BTREE_AM_OID)
#define DatumGetItemPointer(X) ((ItemPointer) DatumGetPointer(X))
#define ItemPointerGetDatum(X) PointerGetDatum(X)
/* ------------------------------------------------
* structure for single btree page statistics

3
contrib/pageinspect/ginfuncs.c

@ -21,9 +21,6 @@
#include "utils/builtins.h"
#include "utils/rel.h"
#define DatumGetItemPointer(X) ((ItemPointer) DatumGetPointer(X))
#define ItemPointerGetDatum(X) PointerGetDatum(X)
PG_FUNCTION_INFO_V1(gin_metapage_info);
PG_FUNCTION_INFO_V1(gin_page_opaque_info);

2
contrib/pageinspect/gistfuncs.c

@ -31,8 +31,6 @@ PG_FUNCTION_INFO_V1(gist_page_items_bytea);
#define IS_GIST(r) ((r)->rd_rel->relam == GIST_AM_OID)
#define ItemPointerGetDatum(X) PointerGetDatum(X)
Datum
gist_page_opaque_info(PG_FUNCTION_ARGS)

5
src/backend/utils/adt/tid.c

@ -37,11 +37,6 @@
#include "utils/varlena.h"
#define DatumGetItemPointer(X) ((ItemPointer) DatumGetPointer(X))
#define ItemPointerGetDatum(X) PointerGetDatum(X)
#define PG_GETARG_ITEMPOINTER(n) DatumGetItemPointer(PG_GETARG_DATUM(n))
#define PG_RETURN_ITEMPOINTER(x) return ItemPointerGetDatum(x)
#define LDELIM '('
#define RDELIM ')'
#define DELIM ','

20
src/include/storage/itemptr.h

@ -222,4 +222,24 @@ extern int32 ItemPointerCompare(ItemPointer arg1, ItemPointer arg2);
extern void ItemPointerInc(ItemPointer pointer);
extern void ItemPointerDec(ItemPointer pointer);
/* ----------------
* Datum conversion functions
* ----------------
*/
static inline ItemPointer
DatumGetItemPointer(Datum X)
{
return (ItemPointer) DatumGetPointer(X);
}
static inline Datum
ItemPointerGetDatum(const ItemPointerData *X)
{
return PointerGetDatum(X);
}
#define PG_GETARG_ITEMPOINTER(n) DatumGetItemPointer(PG_GETARG_DATUM(n))
#define PG_RETURN_ITEMPOINTER(x) return ItemPointerGetDatum(x)
#endif /* ITEMPTR_H */