PostgreSQL convert columns to rows? Transpose?

Question

I have a PostgreSQL function (or table) which gives me the following output:

Sl.no    username    Designation    salary   etc..
 1        A           XYZ             


        

Answer 1

If (like me) you were needing this information from a bash script, note there is a simple command-line switch for psql to tell it to output table columns as rows:

psql mydbname -x -A -F= -c "SELECT * FROM foo WHERE id=123"

The -x option is the key to getting psql to output columns as rows.