589941 - Improve error message for orderBy with missing parameters in aggregation framework

What does this MR do and why?

This MR changes error message for ordering by parameterized dimensions in the aggregation framework's GraphQL API with missing parameters

to be:

"specified identifier 'event_date' is not available for given parameters"

How to set up and validate locally

Run this query locally on this MR branch

query {
  group(fullPath: "my-group") {
    aiUsage {
      events(
        feature: "code_suggestions"
        dateFrom: "2026-01-01"
        dateTo: "2026-02-28"
        orderBy: [{
          identifier: "eventDate",
          parameters: {granularity: "daily"},
          direction: DESC
        }]
      ) {
        nodes {
          dimensions {
            eventDate(granularity: "daily")
            feature
          }
          totalCount
        }
      }
    }
  }
}

References

• #589941

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