Function aggregateSelectExpr

packages/infra/src/Store/Cosmos/query.ts:313–338

(key: string, agg: AggregateIrExpression)

    : false

  const aggregateSelectExpr = (key: string, agg: AggregateIrExpression): string => {
    switch (agg._tag) {
      case "agg-count":
        return `COUNT(1) AS ${key}`
      case "agg-count-when": {
        if (agg.filter.length === 0) return `COUNT(1) AS ${key}`
        const cond = print(agg.filter, null, false)
        // Cosmos supports SUM(IIF(cond, 1, 0)) as a conditional count
        return `SUM(IIF(${cond}, 1, 0)) AS ${key}`
      }
      case "agg-sum": {
        const fieldRef = dottedToAccess(`f.${agg.field}`)
        return `SUM(${fieldRef}) AS ${key}`
      }
      case "agg-min": {
        const fieldRef = dottedToAccess(`f.${agg.field}`)
        return `MIN(${fieldRef}) AS ${key}`
      }
      case "agg-max": {
        const fieldRef = dottedToAccess(`f.${agg.field}`)
        return `MAX(${fieldRef}) AS ${key}`
      }
      default:
        return assertUnreachable(agg)
    }
  }

  const computedSelectExpr = (key: string, computed: ComputedProjectionIrExpression) => {
    const relationPath = computed.path