[PARQUET-119] add data_encodings to ColumnMetaData to enable dictionary based predicate push down

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.6.0
• Component/s: parquet-format
• Assignee: Julien Le Dem
• Reporter: Julien Le Dem
• Created: 24/Oct/14 08:47
• Updated: 3 days ago 03:27
• Resolved: 30/Oct/14 20:49

Description

To implement predicate push down based on dictionary we need to know if fall back happened.
If all data pages are dictionary encoded we can use the dictionary for predicate-push down.
If not we can not.