paul-rogers commented on issue #1807: DRILL-7293: Convert the regex ("log")
plugin to use EVF
URL: https://github.com/apache/drill/pull/1807#issuecomment-505730216
One solution to the schema issue for table functions is to use the `columns`
trick from the text reader. If no schema is provided, then instead of creating
a set of `field_n` columns, create a single `columns` array column.
Specifically, if there is no schema defined for the table, and no schema in the
plugin config (perhaps because the plugin config was created via a table
function), then just use `columns`.
If I get some time, I'll try this out. With the EVF, this might actually be
pretty simple. Might be best to add such a feature via another PR.
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