mz_expr/scalar/func/impls/
uuid.rs

1// Copyright Materialize, Inc. and contributors. All rights reserved.
2//
3// Use of this software is governed by the Business Source License
4// included in the LICENSE file.
5//
6// As of the Change Date specified in that file, in accordance with
7// the Business Source License, use of this software will be governed
8// by the Apache License, Version 2.0.
9
10use mz_expr_derive::sqlfunc;
11use mz_repr::strconv;
12use uuid::Uuid;
13
14#[sqlfunc(
15    sqlname = "uuid_to_text",
16    preserves_uniqueness = true,
17    inverse = to_unary!(super::CastStringToUuid)
18)]
19fn cast_uuid_to_string(u: Uuid) -> String {
20    let mut buf = String::with_capacity(36);
21    strconv::format_uuid(&mut buf, u);
22    buf
23}