On Tue, Feb 16, 2021 at 7:52 PM Michael Lewis <mle...@entrata.com> wrote:
> Aggregate functions work on a single column to summarize many rows into > fewer rows. You seem to be wanting to combine multiple columns which would > be done by concatenation or array[column1,column2] or something like that. > Ah right, Michael, thanks - that is what I realised just after sending the mail. I don't have rows here, but a single row with several columns.