I would like to have DLRS run a count on child records through a lookup. The where clause for counting is to compare a DATE field on the Lookup Parent to a Date/Time field on the Lookup Child.

My Where clause is written as follows:

CustomObjectParent__c.Datefield__c = (DATEVALUE(CustomObjectChild__c.Date_time__c))

It does not allow it and provides the following error:

Error: Relationship Criteria 'CustomObjectParent__c.Datefield__c = (DATEVALUE(CustomObjectChild__c.Date_time__c))' is not valid, see SOQL documentation http://www.salesforce.com/us/developer/docs/soql_sosl/Content/sforce_api_calls_soql_select_conditionexpression.htm, error is 'expecting a colon, found '(''

Can I only use EQUALS with a field and an argument? eg FIELD__c = 25.

How else can I get the answer I need so that the DLRS roll-up summary only chooses children with a date/time field of the same date as the parent date field?


SOQL doesn't currently support comparing two fields, but it's coming soon (Safe Harbor applies). For now, if you want something like that to work, you need to create a custom formula, such as:

Same Parent Date (Checkbox) =
  SomeDate__c = Parent__r.SomeDate__c

And from there, in DLRS, you would say something like:

Same_Parent_Date__c = true
  • Perhaps worth noting that this particular DLRS rollup will not work in Realtime mode and has to be run Scheduled. – David Reed Oct 4 '18 at 15:22

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