如何根据 BigQuery 中的条件旋转/合并行？

Question

I have a table that looks like this:

record	name1	name2	to_merge	value1	value2
1	STEVE	null	false	30	null
2	JOHN	null	true	43	null
3	null	LAURA	true	null	66
4	JEN	null	false	18	null

I want this to be the output:

record	name1	name2	value1	value2
1	STEVE	null	30	null
2	JOHN	LAURA	43	66
3	JEN	null	18	null

This means I want to merge the rows with a TRUE value in the to_merge field. Any help is much appreciated!

Answer 1

Consider below

select * except(to_merge)
from your_table
where not to_merge
union all
select max(name1), max(name2),
  max(value1), max(value2)
from your_table
where to_merge            

if applied to data in your question - output is