This should fix #226 as reported by @bennahugo. The problem was originally caused by relying on xds_from_storage_ms to produce a complete list of column names. This is unreliable as columns can be omitted if they have an invalid exemplar row (@bennahugo's case). This PR removes the problematic assert and replaces it with a try except which relies on the underlying daskms routines to raise sensible error messages which we can augment for readability.
This should fix #226 as reported by @bennahugo. The problem was originally caused by relying on
xds_from_storage_msto produce a complete list of column names. This is unreliable as columns can be omitted if they have an invalid exemplar row (@bennahugo's case). This PR removes the problematic assert and replaces it with atry exceptwhich relies on the underlying daskms routines to raise sensible error messages which we can augment for readability.