datafusion_common/
schema_reference.rs

1// Licensed to the Apache Software Foundation (ASF) under one
2// or more contributor license agreements.  See the NOTICE file
3// distributed with this work for additional information
4// regarding copyright ownership.  The ASF licenses this file
5// to you under the Apache License, Version 2.0 (the
6// "License"); you may not use this file except in compliance
7// with the License.  You may obtain a copy of the License at
8//
9//   http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing,
12// software distributed under the License is distributed on an
13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14// KIND, either express or implied.  See the License for the
15// specific language governing permissions and limitations
16// under the License.
17
18use std::sync::Arc;
19
20#[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord)]
21pub enum SchemaReference {
22    Bare { schema: Arc<str> },
23    Full { schema: Arc<str>, catalog: Arc<str> },
24}
25
26impl SchemaReference {
27    /// Get only the schema name that this references.
28    pub fn schema_name(&self) -> &str {
29        match self {
30            SchemaReference::Bare { schema } => schema,
31            SchemaReference::Full { schema, catalog: _ } => schema,
32        }
33    }
34}
35
36impl std::fmt::Display for SchemaReference {
37    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
38        match self {
39            Self::Bare { schema } => write!(f, "{schema}"),
40            Self::Full { schema, catalog } => write!(f, "{catalog}.{schema}"),
41        }
42    }
43}
datafusion_common/schema_reference.rs

datafusion_common/
schema_reference.rs
