Peter Eisentraut <peter.eisentraut@2ndquadrant.com> writes:
> On 3/15/18 03:46, Pavel Stehule wrote:
>> It looks well
>>
>> the patch has tests and doc,
>> there are not any warnings or compilation issues
>> all tests passed
>>
>> I'll mark this patch as ready for commiter
>
> committed
I played around with this a bit, and noticed that the number handling
doesn't cope with Perl UVs (unsigned integers) in the (IV_MAX, UV_MAX]
range:
ilmari@[local]:5432 ~=# CREATE FUNCTION testUVToJsonb() RETURNS jsonb
ilmari@[local]:5432 ~-# LANGUAGE plperl TRANSFORM FOR TYPE jsonb
ilmari@[local]:5432 ~-# as $$
ilmari@[local]:5432 ~$# $val = ~0;
ilmari@[local]:5432 ~$# elog(NOTICE, "value is $val");
ilmari@[local]:5432 ~$# return $val;
ilmari@[local]:5432 ~$# $$;
CREATE FUNCTION
Time: 6.795 ms
ilmari@[local]:5432 ~=# select testUVToJsonb();
NOTICE: value is 18446744073709551615
┌───────────────┐
│ testuvtojsonb │
├───────────────┤
│ -1 │
└───────────────┘
(1 row)
I tried fixing this by adding an 'if (SvUV(in))' clause to
SV_to_JsonbValue, but I couldn't find a function to create a numeric
value from an uint64. If it's not possible, should we error on UVs
greater than PG_INT64_MAX?
- ilmari
--
"The surreality of the universe tends towards a maximum" -- Skud's Law
"Never formulate a law or axiom that you're not prepared to live with
the consequences of." -- Skud's Meta-Law
