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Fix code that incorrectly assumed a 'char foo[N]' local variable would

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be aligned on a word boundary.  Per report from Steve Nicolai.
This commit is contained in:
Tom Lane 2001-03-25 00:45:20 +00:00
parent 6ba0f31bdd
commit 00713cb7cb
1 changed files with 8 additions and 5 deletions
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13
src/backend/access/heap/tuptoaster.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/heap/tuptoaster.c,v 1.20 2001/03/23 04:49:51 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/access/heap/tuptoaster.c,v 1.21 2001/03/25 00:45:20 tgl Exp $
*
*
* INTERFACE ROUTINES
@ -745,7 +745,10 @@ toast_save_datum(Relation rel, Oid mainoid, int16 attno, Datum value)
Datum t_values[3];
char t_nulls[3];
varattrib *result;
char chunk_data[VARHDRSZ + TOAST_MAX_CHUNK_SIZE];
struct {
struct varlena hdr;
char data[TOAST_MAX_CHUNK_SIZE];
} chunk_data;
int32 chunk_size;
int32 chunk_seq = 0;
char *data_p;
@ -780,7 +783,7 @@ toast_save_datum(Relation rel, Oid mainoid, int16 attno, Datum value)
* Initialize constant parts of the tuple data
*/
t_values[0] = ObjectIdGetDatum(result->va_content.va_external.va_valueid);
t_values[2] = PointerGetDatum(chunk_data);
t_values[2] = PointerGetDatum(&chunk_data);
t_nulls[0] = ' ';
t_nulls[1] = ' ';
t_nulls[2] = ' ';
@ -813,8 +816,8 @@ toast_save_datum(Relation rel, Oid mainoid, int16 attno, Datum value)
* Build a tuple
*/
t_values[1] = Int32GetDatum(chunk_seq++);
VARATT_SIZEP(chunk_data) = chunk_size + VARHDRSZ;
memcpy(VARATT_DATA(chunk_data), data_p, chunk_size);
VARATT_SIZEP(&chunk_data) = chunk_size + VARHDRSZ;
memcpy(VARATT_DATA(&chunk_data), data_p, chunk_size);
toasttup = heap_formtuple(toasttupDesc, t_values, t_nulls);
if (!HeapTupleIsValid(toasttup))
elog(ERROR, "Failed to build TOAST tuple");