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Support Article

Duplicate Result column on Decision Table



Developer noticed that on a decision table rule, checking "Allowed to return values" checkbox causes an additional Result column to be added to the table configuration.

On saving this erroneous result column is usually removed (but not always).Developers are using delegated decision rules and this behavior confuses them.

When testing with Chrome the behavior was slightly different in that the additional result column was there on creation of the rule and could not be removed.

Error Messages


Steps to Reproduce

1. Create a new decision table
2. Check “Allowed to return values” in Results tab
3. Configure column.
4. Set return value.
5. Save
6. Checkout and uncheck Allowed to return values
7. Inspect Table tab
8. Check “Allowed to return values”
9. Inspect Table tab (an extra column comes)
10. Save (no extra column)

Root Cause

The root cause of this problem is a defect in Pegasystems’ code/rules. 
BUG-201583 has been raised for this.


This issue is scheduled to be resolved in update release ML8.

Published June 12, 2015 - Updated October 8, 2020

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