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Add numeric_int8_opt_error() to optionally suppress errors

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This matches the existing numeric_int4_opt_error() (see commit
16d489b0fe).  It will be used by a future JSON-related patch, which
wants to report errors in its own way and thus does not want the
internal functions to throw any error.

Author: Jeevan Chalke <jeevan.chalke@enterprisedb.com>
Discussion: https://www.postgresql.org/message-id/flat/CAM2+6=XjTyqrrqHAOj80r0wVQxJSxc0iyib9bPC55uFO9VKatg@mail.gmail.com
This commit is contained in:
Peter Eisentraut 2024-01-03 10:05:35 +01:00
parent d4e66a39eb
commit c1b9e1e56d
2 changed files with 51 additions and 23 deletions
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73
src/backend/utils/adt/numeric.c
View File

@ -4430,35 +4430,62 @@ int8_numeric(PG_FUNCTION_ARGS)
PG_RETURN_NUMERIC(int64_to_numeric(val)); PG_RETURN_NUMERIC(int64_to_numeric(val));
} }
int64
numeric_int8_opt_error(Numeric num, bool *have_error)
{
NumericVar x;
int64 result;
if (have_error)
*have_error = false;
if (NUMERIC_IS_SPECIAL(num))
{
if (have_error)
{
*have_error = true;
return 0;
}
else
{
if (NUMERIC_IS_NAN(num))
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot convert NaN to %s", "bigint")));
else
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot convert infinity to %s", "bigint")));
}
}
/* Convert to variable format, then convert to int8 */
init_var_from_num(num, &x);
if (!numericvar_to_int64(&x, &result))
{
if (have_error)
{
*have_error = true;
return 0;
}
else
{
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("bigint out of range")));
}
}
return result;
}
Datum Datum
numeric_int8(PG_FUNCTION_ARGS) numeric_int8(PG_FUNCTION_ARGS)
{ {
Numeric num = PG_GETARG_NUMERIC(0); Numeric num = PG_GETARG_NUMERIC(0);
NumericVar x;
int64 result;
if (NUMERIC_IS_SPECIAL(num)) PG_RETURN_INT64(numeric_int8_opt_error(num, NULL));
{
if (NUMERIC_IS_NAN(num))
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot convert NaN to %s", "bigint")));
else
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot convert infinity to %s", "bigint")));
}
/* Convert to variable format and thence to int8 */
init_var_from_num(num, &x);
if (!numericvar_to_int64(&x, &result))
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("bigint out of range")));
PG_RETURN_INT64(result);
} }

1
src/include/utils/numeric.h
View File

@ -101,5 +101,6 @@ extern Numeric numeric_div_opt_error(Numeric num1, Numeric num2,
extern Numeric numeric_mod_opt_error(Numeric num1, Numeric num2, extern Numeric numeric_mod_opt_error(Numeric num1, Numeric num2,
bool *have_error); bool *have_error);
extern int32 numeric_int4_opt_error(Numeric num, bool *have_error); extern int32 numeric_int4_opt_error(Numeric num, bool *have_error);
extern int64 numeric_int8_opt_error(Numeric num, bool *have_error);
#endif /* _PG_NUMERIC_H_ */ #endif /* _PG_NUMERIC_H_ */