[PARQUET-451] Add a RowGroup reader interface class

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: cpp-1.0.0
• Component/s: parquet-cpp
• Assignee: Wes McKinney
• Reporter: Wes McKinney
• Created: 22/Jan/16 19:43
• Updated: 01/Mar/16 21:33
• Resolved: 28/Jan/16 05:13

Description

Currently the logic for interacting with row group metadata and constructing column decoders is embedded in the parquet_reader.cc executable here:

https://github.com/apache/parquet-cpp/blob/master/example/parquet_reader.cc

With PARQUET-434, we have a file reader container, which can then provide a row group reader container, something like

RowGroupReader* group_reader = file_reader->row_group(i);