[ATLAS-1730] Error after updating attribute's data type of an Atlas type

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.8-incubating
• Fix Version/s: 0.8.1, 1.0.0
• Component/s: atlas-core
• Assignee: Apoorv Naik
• Reporter: Sharmadha S
• Created: 10/Apr/17 19:45
• Updated: 17/May/17 17:00
• Resolved: 02/May/17 00:36

Description

1.Created a type with one of its attributes' type as date and POSTed the type definition to

/api/atlas/v2/types/typedefs

2. Tried to update the attribute data type to string , hence modified the JSON (changed "date" to "string") and PUT the JSON to the same API which succeeded.
3. Tried to create an entity of the type and provided "val1" as value for the string attribute (which was updated from date).
4. Entity creation failed with

java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.String

This could be a rare one but this scenario might cause issues when user initially gave data type as "date" by mistake and wants to update it as "string".
Also , since attribute delete is not allowed as part of type update , attribute with "date" type can't be deleted and recreated with string.

Issue Links

• links to: https://reviews.apache.org/r/58746/