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Modify array operations to include array's element type OID in the

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array header, and to compute sizing and alignment of array elements
the same way normal tuple access operations do --- viz, using the
tupmacs.h macros att_addlength and att_align.  This makes the world
safe for arrays of cstrings or intervals, and should make it much
easier to write array-type-polymorphic functions; as examples see
the cleanups of array_out and contrib/array_iterator.  By Joe Conway
and Tom Lane.
This commit is contained in:
Tom Lane
2002-08-26 17:54:02 +00:00
parent 8009c27592
commit 5cabcfccce
38 changed files with 559 additions and 435 deletions
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13
src/backend/utils/adt/numeric.c
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@ -5,7 +5,7 @@
*
* 1998 Jan Wieck
*
* $Header: /cvsroot/pgsql/src/backend/utils/adt/numeric.c,v 1.50 2002/02/18 14:25:40 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/numeric.c,v 1.51 2002/08/26 17:53:58 tgl Exp $
*
* ----------
*/
@ -18,6 +18,7 @@
#include <errno.h>
#include <sys/types.h>
#include "catalog/pg_type.h"
#include "utils/array.h"
#include "utils/builtins.h"
#include "utils/int8.h"
@ -1734,7 +1735,7 @@ do_numeric_accum(ArrayType *transarray, Numeric newval)
/* We assume the input is array of numeric */
deconstruct_array(transarray,
false, -1, 'i',
NUMERICOID, -1, false, 'i',
&transdatums, &ndatums);
if (ndatums != 3)
elog(ERROR, "do_numeric_accum: expected 3-element numeric array");
@ -1755,7 +1756,7 @@ do_numeric_accum(ArrayType *transarray, Numeric newval)
transdatums[2] = sumX2;
result = construct_array(transdatums, 3,
false, -1, 'i');
NUMERICOID, -1, false, 'i');
return result;
}
@ -1825,7 +1826,7 @@ numeric_avg(PG_FUNCTION_ARGS)
/* We assume the input is array of numeric */
deconstruct_array(transarray,
false, -1, 'i',
NUMERICOID, -1, false, 'i',
&transdatums, &ndatums);
if (ndatums != 3)
elog(ERROR, "numeric_avg: expected 3-element numeric array");
@ -1861,7 +1862,7 @@ numeric_variance(PG_FUNCTION_ARGS)
/* We assume the input is array of numeric */
deconstruct_array(transarray,
false, -1, 'i',
NUMERICOID, -1, false, 'i',
&transdatums, &ndatums);
if (ndatums != 3)
elog(ERROR, "numeric_variance: expected 3-element numeric array");
@ -1940,7 +1941,7 @@ numeric_stddev(PG_FUNCTION_ARGS)
/* We assume the input is array of numeric */
deconstruct_array(transarray,
false, -1, 'i',
NUMERICOID, -1, false, 'i',
&transdatums, &ndatums);
if (ndatums != 3)
elog(ERROR, "numeric_stddev: expected 3-element numeric array");