0	95	abc	[1,2,3]
1	\N	a	[993,986,979,972]
2	123	makson95	[]
95123
abcamakson95
[1,2,3][993,986,979,972][]
[1,2,3]
abcamakson95
95123
95\n123
95,123
abc,a,makson95
[1,2,3],[993,986,979,972]
\N
951239512395123
abc,a,makson95,abc,a,makson95,abc,a,makson95
[1,2,3][993,986,979,972][][1,2,3][993,986,979,972][][1,2,3][993,986,979,972][]
488890
TESTING GroupConcat second argument overload
95,123
abc.a.makson95
[1,2,3]/[993,986,979,972]/[]
[1,2,3]/[993,986,979,972]/[]
[1,2,3]/[993,986,979,972]/[]
[1,2,3]/[993,986,979,972]/[]
[1,2,3]/[993,986,979,972]/[]
488890