[IMPALA-4815] Populate min/max statistics in Parquet files for Decimal types

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 2.9.0
• Fix Version/s: Impala 2.9.0
• Component/s: Backend
• Labels: parquet
• Epic Link: Improve the reliability and effectiveness of ETL
• Assignee: Lars Volker
• Reporter: Lars Volker
• Created: 24/Jan/17 22:12
• Updated: 02/Jun/17 22:38
• Resolved: 11/May/17 10:58

Description

Due to several issues in parquet-mr and subsequently Hive, IMPALA-3909 only adds write support for min/max statistics for numeric types. We should also add write support for Decimal values. This is currently blocked by PARQUET-839.

Issue Links

• is a child of: IMPALA-4989 Improve filtering based on parquet::Statistics