columnsWithAlias returns ".Column" for columns without tables

[orivej]

When columnsWithAlias is true, the call to Columns after a query like "select 1 as A" will describe the column as ".A". Is this intended? If yes, this should be documented in the README: ".A" as a column name is unexpected, in particular it can not be used in an "order by" clause.

(columnsWithAlias was introduced in #289.)

[arnehormann]

I'm ignoring the issue for now (no time), but I'd still like to help you with the underlying problem:
you can use the column index in ORDER BY, e.g. ORDER BY 1 asc, 4 desc.

[julienschmidt]

It's a bug. PR #359 should fix it.