alkis commented on code in PR #242:
URL: https://github.com/apache/parquet-format/pull/242#discussion_r1629568907
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src/main/thrift/parquet.thrift:
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@@ -885,6 +971,44 @@ struct ColumnChunk {
9: optional binary encrypted_column_metadata
}
+struct ColumnChunkV3 {
+ /** File where column data is stored. **/
+ 1: optional string file_path
Review Comment:
@adamreeve / @AudriusButkevicius do I understand correctly that you have a
dataset with N parquet files and in your schema you have a `_metadata` column
which contains metadata for all N files. Each of the files says data for
`_metadata` column is this other file over here (`file_path`) so while
logically each file has information for all other files, the data exists only
in single file containing the metadata for the whole dataset.
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