[PIG-4525] Clarify "Scalar has more than one row in the output."

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 0.15.0
• Assignee: Niels Basjes
• Reporter: Niels Basjes
• Created: 30/Apr/15 08:57
• Updated: 07/Jun/15 03:47
• Resolved: 01/May/15 00:15

Description

The exception "Scalar has more than one row in the output." is correct yet is reason for many (starting) pig developers to search the internet for a solution.

I propose (and I'll include a patch) to simply extend the exception message with a hint towards the right solution.

Issue Links

• is duplicated by: PIG-2134 ReadScalars message "scalar has more than one row in the output" does not provide enough information to help programmer find and fix script syntax error.
• relates to: PIG-2134 ReadScalars message "scalar has more than one row in the output" does not provide enough information to help programmer find and fix script syntax error.