Sital Kedia created SPARK-23722:
-----------------------------------
Summary: Add support for inserting empty map or array to table
Key: SPARK-23722
URL: https://issues.apache.org/jira/browse/SPARK-23722
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.0.2
Reporter: Sital Kedia
A query like following fails in spark currently -
```
CREATE TABLE arrayTypeTable (data array<string>)
INSERT OVERWRITE TABLE arrayTypeTable select array()
```
This is due to Spark is not allowing casting an empty map/array to
array<string>. This is a use case currently supported by both Hive and Presto
and we need to support this in order to make Spark compatible with existing
Hive queries.
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