datafusion_functions/datetime/
planner.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
18//! SQL planning extensions like [`DatetimeFunctionPlanner`]
19use datafusion_expr::expr::ScalarFunction;
20use datafusion_expr::planner::{ExprPlanner, PlannerResult};
21use datafusion_expr::Expr;
22
23#[derive(Default, Debug)]
24pub struct DatetimeFunctionPlanner;
25
26impl ExprPlanner for DatetimeFunctionPlanner {
27    fn plan_extract(
28        &self,
29        args: Vec<Expr>,
30    ) -> datafusion_common::Result<PlannerResult<Vec<Expr>>> {
31        Ok(PlannerResult::Planned(Expr::ScalarFunction(
32            ScalarFunction::new_udf(crate::datetime::date_part(), args),
33        )))
34    }
35}
datafusion_functions/datetime/planner.rs

datafusion_functions/datetime/
planner.rs
