Get row number with Google spreadsheet query language

Question

I\'d like to get the row number of the data I need with query language, i.g: select A,ROW_NUMBER() where (B=1).

But it seems the query language doesn\'t provide func

Answer 1

Regarding the accepted answer, keep in mind that from Google Documentation some users need to change

=query({A2:B, arrayformula(row(A2:B))}, "select Col1, Col3 where Col2 = 1")

to

=query({A2:B\ arrayformula(row(A2:B))}, "select Col1, Col3 where Col2 = 1")

since the array sintax can change (Google Documentation):

Note: For countries that use commas as decimal separators (for example €1,00), commas would be replaced by backslashes () when creating arrays.