Function createAnonymousCompositeType

server/ast/create_function.go:184–206

createAnonymousCompositeType creates a new DoltgresType for the anonymous composite return type for a function, as represented by the |fieldTypes| that were specified in the function definition.

(fieldTypes []tree.SimpleColumnDef)

// type for a function, as represented by the |fieldTypes| that were specified in the function
// definition.
func createAnonymousCompositeType(fieldTypes []tree.SimpleColumnDef) *pgtypes.DoltgresType {
	attrs := make([]pgtypes.CompositeAttribute, len(fieldTypes))
	for i, fieldType := range fieldTypes {
		attrs[i] = pgtypes.NewCompositeAttribute(nil, id.Null, fieldType.Name.String(),
			pgtypes.NewUnresolvedDoltgresTypeFromID(id.NewType("", fieldType.Type.SQLString())), int16(i), "")
	}

	typeIdString := "table("
	for i, attr := range attrs {
		if i > 0 {
			typeIdString += ","
		}
		typeIdString += attr.Name
		typeIdString += ":"
		typeIdString += attr.Type.ID.TypeName()
	}
	typeIdString += ")"

	// NOTE: there is no schema needed, since these types are anonymous and can't be directly referenced
	typeId := id.NewType("", typeIdString)

	return pgtypes.NewCompositeType(context.Background(), id.Null, nil, typeId, attrs)
}

// handleLanguageSQLAs handles parsing SQL definition strings in both CREATE FUNCTION and CREATE PROCEDURE
// and returns converted the sql statements into vitess statements.