[PARQUET-1792] Add 'mask' command to parquet-tools/parquet-cli

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.12.0
• Fix Version/s: 1.12.0
• Component/s: parquet-mr
• Assignee: Xinli Shang
• Reporter: Xinli Shang
• Created: 10/Feb/20 16:17
• Updated: 01/Jul/21 20:17

Description

Some personal data columns need to be masked instead of being pruned(Parquet-1791). We need a tool to replace the raw data columns with masked value. The masked value could be hash, null, redact etc.  For the unchanged columns, they should be moved as a whole like 'merge', 'prune' command in Parquet-tools. 

 

Implementing this feature in file format is 10X faster than doing it by rewriting the table data in the query engine. 

Sub-Tasks

• Add null command: Resolved
• Add hash functionality: Open