Yes that was my conclusion, thanks Peter.

As a result I switched to a new table named (shapeit2_ref) and a new tool name (data_manager_shapeit2_reference) and from planemo side upload seemed to succeed but the tool is in an error state. I resorted to manually editing the tool-data table.

Data managers are a bit of an ugly duckling part of Galaxy - not receiving as much love as other kinds of tools.


On Tue, 18 Sep 2018 at 14:22 Peter Cock <> wrote:
Hi Peter vH,

I wonder if adding columns is not supported - because some tools
would define the table without the extra column? You might have
to define a new data table instead (with largely the same content).
But to be clear, I am not an expert in this area of Galaxy.

However, it does seem the IUC could lay out some *.loc file best
practises for tool authors. There is currently a TODO entry here:

Peter C.

On Mon, Sep 17, 2018 at 10:56 PM Peter van Heusden <> wrote:
A bit more tracing leads me to suspect that what is happening is that a merge is being called here:


i.e. the toolshed maintains an in-memory copy of tool-data tables and if the list of columns in an incoming tool-data table is not the same as the in-memory version the error I saw happens.

Which leaves me with the question: how is one meant to update the column list of a tool data table?