[IGNITE-3297] Pipe chart is empty in special case.

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7
• Fix Version/s: 1.7
• Component/s: wizards
• Assignee: Unassigned
• Reporter: Vasiliy Sisko
• Created: 10/Jun/16 10:22
• Updated: 21/Jun/16 15:16
• Resolved: 17/Jun/16 05:02

Description

1. Execute query where column A and B have the same values in all rows.
2. Build Pipe chart where A and B columns set as X and Y columns.
   Showed legend for chart but chart area is empty.