search

queryverse / IterableTables.jl

Implementations of the TableTraits.jl interface for various packages
Other
79 stars 9 forks source link

Schema has no field types #69

Closed pfarndt closed 5 years ago

pfarndt commented 6 years ago

When trying to convert a SQLite source to a DataFrame I get the following error:

type Schema has no field types

Stacktrace: [1] getiterator(::SQLite.Source) at .julia/v0.6/IterableTables/src/integrations/datastreams.jl:27 [2] _DataFrame(::SQLite.Source) at .julia/v0.6/IterableTables/src/integrations/dataframes-missing.jl:98 [3] DataFrames.DataFrame(::SQLite.Source) at .julia/v0.6/IterableTables/src/integrations/dataframes-missing.jl:127 ....

I am using Julia v0.6.2 with:

davidanthoff commented 6 years ago

Yes, this is a known issue, the DataStreams API changed and I haven't updated things to work with the new definition.

pstaabp commented 6 years ago

I just ran into this learning about using these with SQLite and CSV sources. I was thinking of looking into a bug fix for this, but looks like you may have one in the pipeline. Any chance the fix will be released soon?

dvignon commented 6 years ago

Same issue here. Will a fix be released any time soon?

davidanthoff commented 6 years ago

I'm a bit behind on julia stuff right now. It is not clear right now to me what the future of DataStreams.jl is (mostly because I need to catch up with the various forums etc.). Until I have figured that out, I'm not sure when this will be sorted out.

For now, I would recommend that you use the normal DataStreams.jl way of converting things into a DataFrame, and then everything should work downstream via the stuff here. I'll update this here once I have a clearer picture.

davidanthoff commented 5 years ago

So, DataStreams.jl is a thing of the past, and I'm closing this here.

Hopefully we'll get full integration of Tables.jl at some point, and then those sources should just work again.