I can create tables over both columns in two-column mode using table* with tabular and multi-page tables using longtable or supertabular but I am not able to combine both.
\documentclass[twocolumn]{article}
\usepackage{supertabular}
\usepackage{longtable}
\begin{document}
\begin{supertabular*}{\linewidth}{llllll}
column1 &column2 &column3 &column4 &column5 &column6\\
\end{supertabular*}
\end{document}
- longtable does not work in two-column mode at all ("longtable not in 1-column mode")
- supertabular* compiles (using
\begin{supertabular*}{\linewidth}{...}, as recommended in another Question) but keeps to use one column anyways and overlaps if that space is not sufficient (see MWE above)