Method resolveTypes

query/aql_compiler.go:1177–1222

resolveTypes walks all expresison ASTs and resolves data types bottom up. In addition it also translates enum strings and rewrites their predicates.

()

// resolveTypes walks all expresison ASTs and resolves data types bottom up.
// In addition it also translates enum strings and rewrites their predicates.
func (qc *AQLQueryContext) resolveTypes() {
	// Join conditions.
	for i, join := range qc.Query.Joins {
		for j, cond := range join.ConditionsParsed {
			join.ConditionsParsed[j] = expr.Rewrite(qc, cond)
			if qc.Error != nil {
				return
			}
		}
		qc.Query.Joins[i] = join
	}

	// Dimensions.
	for i, dim := range qc.Query.Dimensions {
		dim.ExprParsed = expr.Rewrite(qc, dim.ExprParsed)
		if qc.Error != nil {
			return
		}
		qc.Query.Dimensions[i] = dim
	}

	// Measures.
	for i, measure := range qc.Query.Measures {
		measure.ExprParsed = expr.Rewrite(qc, measure.ExprParsed)
		if qc.Error != nil {
			return
		}
		for j, filter := range measure.FiltersParsed {
			measure.FiltersParsed[j] = expr.Rewrite(qc, filter)
			if qc.Error != nil {
				return
			}
		}
		measure.FiltersParsed = normalizeAndFilters(measure.FiltersParsed)
		qc.Query.Measures[i] = measure
	}

	// Filters.
	for i, filter := range qc.Query.FiltersParsed {
		qc.Query.FiltersParsed[i] = expr.Rewrite(qc, filter)
		if qc.Error != nil {
			return
		}
	}
	qc.Query.FiltersParsed = normalizeAndFilters(qc.Query.FiltersParsed)
}

// extractFitler processes the specified query level filter and matches it
// against the following formats: