[SPARK-21266] Support schema a DDL-formatted string in dapply/gapply/from_json

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.3.0
• Component/s: PySpark, SparkR
• Target Version/s: 2.3.0
• Assignee: Hyukjin Kwon
• Reporter: Hyukjin Kwon
• Created: 30/Jun/17 08:38
• Updated: 12/Dec/22 18:11
• Resolved: 10/Jul/17 17:41

Description

A DDL-formatted string is now supported in schema API in dataframe reader/writer across other language APIs.

from_json in R/Python look not supporting this.

Also, It could be done in other commonly used APIs too in R specifically - dapply/gapply.

Issue Links

• links to: [Github] Pull Request #18498 (HyukjinKwon)