romankarlstetter commented on issue #20196:
URL: https://github.com/apache/arrow/issues/20196#issuecomment-1634221289
I encounter a similar problem when retrieving data via arrow flight (on the
client-side, when loading recordbatches).
When the flight client requests data with a schema containing nested fields
(struct of some floats in my example), the client hits the error
`Status::Invalid("Ran out of field metadata, likely malformed")`, returned by
`ArrayLoader::GetFieldMetadata`.
The problem does not occur when there are no nested fields in the requested
data.
C++ client and C++ server. Both server and client use libarrow.so.1200.
I know too little about the whole `ArrayLoader` logic to fix this, but I
assume that there is something going wrong with top-level schema field indices
vs. flattened field indices (and the respective counts).
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