locationtech / locationtech/geomesa
SparkSQL - support reading/writing arrays and structs
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Description
SparkSQL - support reading/writing arrays and structs
Original JIRA Issue: https://geomesa.atlassian.net/browse/GEOMESA-2339
Key: GEOMESA-2339
Type: Improvement
Priority: Major
Status: To Do
Resolution: Unresolved
Reporter: Emilio Lahr-Vivaz
Created: Tue, 24 Jul 2018 08:21:32 -0400
Updated: Fri, 27 Jul 2018 14:51:48 -0400
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start at geomesa-spark/geomesa-spark-sql/src/main/scala/org/locationtech/geomesa/spark/GeoMesaSparkSQL.scala around line 117 and inspect the existing SparkSQL conversion paths. Trace how current values are read and written, then identify the coverage needed for arrays and structs. Done means SparkSQL can read and write both nested types without breaking existing behavior; the issue does not name a test file, so locate the relevant SparkSQL tests while tracing the implementation.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- scala, spark
- Domain
- data-engineering
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100