[SPARK-6777] Implement backwards-compatibility rules in Parquet schema converters

• Type: Sub-task
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.0.2, 1.1.1, 1.2.1, 1.3.0, 1.4.0
• Fix Version/s: 1.5.0
• Component/s: SQL
• Target Version/s: 1.5.0
• Assignee: Cheng Lian
• Reporter: Cheng Lian
• Created: 08/Apr/15 12:57
• Updated: 22/Jul/15 10:43
• Resolved: 24/Jun/15 22:03

Description

When converting Parquet schemas to/from Spark SQL schemas, we should recognize commonly used legacy non-standard representation of complex types. We can follow the pattern used in Parquet's AvroSchemaConverter.

Issue Links

• links to: [Github] Pull Request #6617 (liancheng)