[feature-wip](array-type) Add codes and UT for array_contains and array_position functions (#8401) (#8589)
array_contains function Usage example: 1. create table with ARRAY column, and insert some data: ``` > select * from array_test; +------+------+--------+ | k1 | k2 | k3 | +------+------+--------+ | 1 | 2 | [1, 2] | | 2 | 3 | NULL | | 4 | NULL | [] | | 3 | NULL | NULL | +------+------+--------+ ``` 2. enable vectorized: ``` > set enable_vectorized_engine=true; ``` 3. select with array_contains: ``` > select k1,array_contains(k3,1) from array_test; +------+-------------------------+ | k1 | array_contains(`k3`, 1) | +------+-------------------------+ | 3 | NULL | | 1 | 1 | | 2 | NULL | | 4 | 0 | +------+-------------------------+ ``` 4. also we can use array_contains in where condition ``` > select * from array_test where array_contains(k3,1); +------+------+--------+ | k1 | k2 | k3 | +------+------+--------+ | 1 | 2 | [1, 2] | +------+------+--------+ ``` 5. array_position usage example ``` > select k1,k3,array_position(k3,2) from array_test; +------+--------+-------------------------+ | k1 | k3 | array_position(`k3`, 2) | +------+--------+-------------------------+ | 3 | NULL | NULL | | 1 | [1, 2] | 2 | | 2 | NULL | NULL | | 4 | [] | 0 | +------+--------+-------------------------+ ```
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be/src/vec/functions/array/function_array_register.cpp
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// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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// This file is copied from
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// https://github.com/ClickHouse/ClickHouse/blob/master/src/Functions/array/registerFunctionsArray.cpp
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// and modified by Doris
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#include "vec/functions/simple_function_factory.h"
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namespace doris::vectorized {
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void register_function_array_index(SimpleFunctionFactory&);
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void register_function_array(SimpleFunctionFactory& factory) {
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register_function_array_index(factory);
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}
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} // namespace doris::vectorized
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