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3 Commits

Author SHA1 Message Date
Paul Holden ea45aefe62 MDL-74675 reportbuilder: preserve column type during aggregation. 
When applying callbacks during the group concatenation aggregation
types, ensure the column type is preserved for it's default value.
 2022-05-19 16:04:37 +01:00
Paul Holden eb2e261df4 MDL-73706 reportbuilder: fix count for columns with multiple fields. 
When using the "Count distinct" aggregation type on a column that
selects multiple fields, we should account for each of them in the
returned SQL.

Move helper method to facilitate this to the base aggregation class
so it can be re-used between all types.
 2022-01-28 15:38:40 +00:00
Paul Holden f47e89a9bd MDL-70795 reportbuilder: editor elements to set column aggregation. 
Aggregation of report columns allows the report editor to perform
common types of data aggregation (concatenation, sum, count, etc)
on given columns.
 2021-10-19 13:56:05 +01:00