// Build a query execution pipeline from a query plan.
func Build(plan plan.Operator, context *Context) (Operator, error) {
builder := &builder{context}
x, err := plan.Accept(builder)
if err != nil {
return nil, err
}
ex := x.(Operator)
return ex, nil
}
// Build a query execution pipeline from a query plan.
func Build(plan plan.Operator, context *Context) (Operator, error) {
var m map[scannedIndex]bool
if context.ScanVectorSource().Type() == timestamp.ONE_VECTOR {
// Collect scanned indexes.
m = make(map[scannedIndex]bool)
}
builder := &builder{context, m}
x, err := plan.Accept(builder)
if err != nil {
return nil, err
}
if builder.scannedIndexes != nil && len(builder.scannedIndexes) > 1 {
scannedIndexArr := make([]string, len(builder.scannedIndexes))
for si := range builder.scannedIndexes {
scannedIndexArr = append(scannedIndexArr, fmt.Sprintf("%s:%s", si.namespace, si.keyspace))
}
return nil, errors.NewScanVectorTooManyScannedBuckets(scannedIndexArr)
}
ex := x.(Operator)
return ex, nil
}