Group by not working when columns not returned directly in select

[josalmi]

OrientDB Version: 3.0.9

Java Version: openjdk version "1.8.0_171"

OS: alpine 3.8.1 (I'm using the official Docker image)

Given table such as:

@Rid	@Version	@Class	last_name	first_name
41:0	1	Test	Francescone	Onida
41:1	1	Test	Springham	Lauree
41:2	1	Test	Whal	Cory
42:0	1	Test	Ryan	Onida
42:1	1	Test	Ranking	Abran
42:2	1	Test	Schoales	Cory
43:0	1	Test	Ryan	Maximilien
43:1	1	Test	Stannas	Abran
43:2	1	Test	Schoales	Augusta
44:0	1	Test	Henzley	Dot
44:1	1	Test	Stannas	Gypsy
44:2	1	Test	Garrard	Walliw

Then running a query with GROUP BY such as:

SELECT first_name + ' ' + last_name, COUNT(@rid) FROM Test GROUP BY last_name, first_name

Expected behavior

Should group specified columns like in SQL:

first_name + ' ' + last_name	COUNT(@Rid)
Onida Francescone	1
Lauree Springham	1
Cory Whal	1
Onida Ryan	1
Abran Ranking	1
Cory Schoales	1
Maximilien Ryan	1
Abran Stannas	1
Augusta Schoales	1
Dot Henzley	1
Gypsy Stannas	1
Walliw Garrard	1

Actual behavior

Actually groups people with same last_name to same bucket

first_name + ' ' + last_name	COUNT(@Rid)
Onida Francescone	1
Lauree Springham	1
Cory Whal	1
Maximilien Ryan	2
Abran Ranking	1
Augusta Schoales	2
Gypsy Stannas	2
Dot Henzley	1
Walliw Garrard	1

Steps to reproduce

Prepare table with data:

CREATE CLASS TEST EXTENDS V;
INSERT INTO Test (first_name, last_name) VALUES ('Onida', 'Francescone'),
('Onida', 'Ryan'),
('Maximilien', 'Ryan'),
('Dot', 'Henzley'),
('Lauree', 'Springham'),
('Abran', 'Ranking'),
('Abran', 'Stannas'),
('Gypsy', 'Stannas'),
('Cory', 'Whal'),
('Cory', 'Schoales'),
('Augusta', 'Schoales'),
('Walliw', 'Garrard');

Query:

SELECT first_name + ' ' + last_name, COUNT(@rid) FROM Test GROUP BY first_name, last_name

Workaround:

The query seems to give expected results when using GROUP BY first_name + ' ' + last_name syntax:

SELECT first_name + ' ' + last_name, COUNT(@rid) FROM Test GROUP BY first_name + ' ' + last_name

Also when selecting first_name and last_name fields directly in SELECT the query returns results as expected.

SELECT first_name, last_name, COUNT(@rid) FROM Test GROUP BY first_name, last_name

[luigidellaquila]

Hi @josalmi

I'm working on it now

Thanks

Luigi

[luigidellaquila]

Hi @josalmi

I just pushed a fix, it will be released with v 3.0.11

Thanks

Luigi