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Add int2-to-int8 and int8-to-int2 conversion routines. Needed to avoid

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breaking existing pg_dump scripts, which try to assign the result of
count(*) to an int2 variable.  catversion bumped.
This commit is contained in:
Tom Lane
2001-10-25 14:10:07 +00:00
parent 92e8282229
commit a0cd991987
4 changed files with 36 additions and 5 deletions
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25
src/backend/utils/adt/int8.c
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/int8.c,v 1.34 2001/10/25 05:49:44 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/int8.c,v 1.35 2001/10/25 14:10:06 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -697,6 +697,29 @@ int84(PG_FUNCTION_ARGS)
PG_RETURN_INT32(result);
}
Datum
int28(PG_FUNCTION_ARGS)
{
int16 val = PG_GETARG_INT16(0);
PG_RETURN_INT64((int64) val);
}
Datum
int82(PG_FUNCTION_ARGS)
{
int64 val = PG_GETARG_INT64(0);
int16 result;
result = (int16) val;
/* Test for overflow by reverse-conversion. */
if ((int64) result != val)
elog(ERROR, "int8 conversion to int2 is out of range");
PG_RETURN_INT16(result);
}
Datum
i8tod(PG_FUNCTION_ARGS)
{