[SPARK-21440] Refactor ArrowConverters and add ArrayType and StructType support.

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3.0
• Fix Version/s: 2.3.0
• Component/s: PySpark, SQL
• Assignee: Takuya Ueshin
• Reporter: Takuya Ueshin
• Created: 17/Jul/17 12:44
• Updated: 27/Jul/17 11:21
• Resolved: 27/Jul/17 11:21

Description

This is a refactoring of ArrowConverters and related classes.

1. Refactor ColumnWriter as ArrowWriter.
2. Add ArrayType and StructType support.
3. Refactor ArrowConverters to skip intermediate ArrowRecordBatch creation.

Issue Links

• is related to: SPARK-21472 Introduce ArrowColumnVector as a reader for Arrow vectors.
• links to: [Github] Pull Request #18655 (ueshin)