[PARQUET-1022] [C++] Append mode in parquet-cpp

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: cpp-1.1.0
• Component/s: parquet-cpp
• Assignee: Wes McKinney
• Reporter: yugu
• Created: 06/Jun/17 20:39
• Updated: 23/Jun/24 03:29
• Resolved: 12/Nov/18 21:54

Description

As said, currently trying to work out a append feature for parquet files in c++.
(been searching through repo etc, can't find example tho..)

Current solution is to (assume no schema changes that is):

Read in metadata
Change metadata based on appended rows+ original rows
Append a new row group (or multiple row group writer)
Write the new rows.

—
The problem is that, is approached this way, the original last row group may not be complete filled. Was wondering if there is a fix or I'm using the api wrong...

Thanks ! : D