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Use FLEXIBLE_ARRAY_MEMBER in struct varlena.

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This forces some minor coding adjustments in tuptoaster.c and inv_api.c,
but the new coding there is cleaner anyway.

Michael Paquier
This commit is contained in:
Tom Lane
2015-02-20 16:51:53 -05:00
parent 8902f79264
commit e38b1eb098
3 changed files with 16 additions and 10 deletions
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8
src/backend/access/heap/tuptoaster.c
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@ -1365,11 +1365,13 @@ toast_save_datum(Relation rel, Datum value,
CommandId mycid = GetCurrentCommandId(true);
struct varlena *result;
struct varatt_external toast_pointer;
struct
union
{
struct varlena hdr;
char data[TOAST_MAX_CHUNK_SIZE]; /* make struct big enough */
int32 align_it; /* ensure struct is aligned well enough */
/* this is to make the union big enough for a chunk: */
char data[TOAST_MAX_CHUNK_SIZE + VARHDRSZ];
/* ensure union is aligned well enough: */
int32 align_it;
} chunk_data;
int32 chunk_size;
int32 chunk_seq = 0;