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Prevent infinity and NaN in jsonb/plperl transform

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jsonb uses numeric internally, and numeric can store NaN, but that is
not allowed by jsonb on input, so we shouldn't store it.  Also prevent
infinity to get a consistent error message.  (numeric input would reject
infinity anyway.)

Reported-by: Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
This commit is contained in:
Peter Eisentraut
2018-04-30 12:28:45 -04:00
parent f7df8043f0
commit e348e7ae57
5 changed files with 102 additions and 6 deletions
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22
contrib/jsonb_plperl/sql/jsonb_plperl.sql
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@ -34,6 +34,28 @@ $$;
SELECT testSVToJsonb();
CREATE FUNCTION testInf() RETURNS jsonb
LANGUAGE plperl
TRANSFORM FOR TYPE jsonb
AS $$
$val = 0 + 'Inf';
return $val;
$$;
SELECT testInf();
CREATE FUNCTION testNaN() RETURNS jsonb
LANGUAGE plperl
TRANSFORM FOR TYPE jsonb
AS $$
$val = 0 + 'NaN';
return $val;
$$;
SELECT testNaN();
-- this revealed a bug in the original implementation
CREATE FUNCTION testRegexpResultToJsonb() RETURNS jsonb
LANGUAGE plperl