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Fix treatment of nulls in jsonb_agg and jsonb_object_agg

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The wrong is_null flag was being passed to datum_to_json. Also, null
object key values are not permitted, and this was not being checked
for. Add regression tests covering these cases, and also add those tests
to the json set, even though it was doing the right thing.

Fixes bug #13514, initially diagnosed by Tom Lane.
This commit is contained in:
Andrew Dunstan
2015-07-24 09:40:46 -04:00
parent c1ca3a19df
commit d9a356ff2e
7 changed files with 107 additions and 10 deletions
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13
src/test/regress/sql/json.sql
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@ -126,7 +126,12 @@ SELECT json_agg(q)
FROM generate_series(1,2) x,
generate_series(4,5) y) q;
SELECT json_agg(q)
SELECT json_agg(q ORDER BY x, y)
FROM rows q;
UPDATE rows SET x = NULL WHERE x = 1;
SELECT json_agg(q ORDER BY x NULLS FIRST, y)
FROM rows q;
-- non-numeric output
@ -442,7 +447,6 @@ SELECT json_build_object(
'd', json_build_object('e',array[9,8,7]::int[],
'f', (select row_to_json(r) from ( select relkind, oid::regclass as name from pg_class where relname = 'pg_class') r)));
-- empty objects/arrays
SELECT json_build_array();
@ -468,6 +472,11 @@ INSERT INTO foo VALUES (847003,'sub-alpha','GESS90');
SELECT json_build_object('turbines',json_object_agg(serial_num,json_build_object('name',name,'type',type)))
FROM foo;
SELECT json_object_agg(name, type) FROM foo;
INSERT INTO foo VALUES (999999, NULL, 'bar');
SELECT json_object_agg(name, type) FROM foo;
-- json_object
-- one dimension