common_function/scalars/expression.rs
1// Copyright 2023 Greptime Team
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15mod binary;
16mod ctx;
17mod if_func;
18mod is_null;
19mod unary;
20
21pub use binary::scalar_binary_op;
22pub use ctx::EvalContext;
23pub use unary::scalar_unary_op;
24
25use crate::function_registry::FunctionRegistry;
26use crate::scalars::expression::if_func::IfFunction;
27use crate::scalars::expression::is_null::IsNullFunction;
28
29pub(crate) struct ExpressionFunction;
30
31impl ExpressionFunction {
32 pub fn register(registry: &FunctionRegistry) {
33 registry.register_scalar(IsNullFunction::default());
34 registry.register_scalar(IfFunction::default());
35 }
36}