datafusion_spark/function/aggregate/
mod.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 datafusion_expr::AggregateUDF;
19use std::sync::Arc;
20
21pub mod avg;
22pub mod try_sum;
23
24pub mod expr_fn {
25    use datafusion_functions::export_functions;
26
27    export_functions!((avg, "Returns the average value of a given column", arg1));
28    export_functions!((
29        try_sum,
30        "Returns the sum of values for a column, or NULL if overflow occurs",
31        arg1
32    ));
33}
34
35// TODO: try use something like datafusion_functions_aggregate::create_func!()
36pub fn avg() -> Arc<AggregateUDF> {
37    Arc::new(AggregateUDF::new_from_impl(avg::SparkAvg::new()))
38}
39pub fn try_sum() -> Arc<AggregateUDF> {
40    Arc::new(AggregateUDF::new_from_impl(try_sum::SparkTrySum::new()))
41}
42
43pub fn functions() -> Vec<Arc<AggregateUDF>> {
44    vec![avg(), try_sum()]
45}
datafusion_spark/function/aggregate/mod.rs

datafusion_spark/function/aggregate/
mod.rs
