sqlparser/dialect/
duckdb.rs

1// Licensed under the Apache License, Version 2.0 (the "License");
2// you may not use this file except in compliance with the License.
3// You may obtain a copy of the License at
4//
5// http://www.apache.org/licenses/LICENSE-2.0
6//
7// Unless required by applicable law or agreed to in writing, software
8// distributed under the License is distributed on an "AS IS" BASIS,
9// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
10// See the License for the specific language governing permissions and
11// limitations under the License.
12
13use crate::dialect::Dialect;
14
15/// A [`Dialect`] for [DuckDB](https://duckdb.org/)
16#[derive(Debug, Default)]
17pub struct DuckDbDialect;
18
19// In most cases the redshift dialect is identical to [`PostgresSqlDialect`].
20impl Dialect for DuckDbDialect {
21    fn is_identifier_start(&self, ch: char) -> bool {
22        ch.is_alphabetic() || ch == '_'
23    }
24
25    fn is_identifier_part(&self, ch: char) -> bool {
26        ch.is_alphabetic() || ch.is_ascii_digit() || ch == '$' || ch == '_'
27    }
28
29    fn supports_filter_during_aggregation(&self) -> bool {
30        true
31    }
32
33    fn supports_group_by_expr(&self) -> bool {
34        true
35    }
36}
sqlparser/dialect/duckdb.rs

sqlparser/dialect/
duckdb.rs
