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[Feature](function) support function array_flatten (apache#47404)
### What problem does this PR solve?
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [X] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [X] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [ ] No.
- [X] Yes. <apache/doris-website#1951>
### Check List (For Reviewer who merge this PR)
- [X] Confirm the release note
- [X] Confirm test cases
- [X] Confirm document
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| // Licensed to the Apache Software Foundation (ASF) under one | ||
| // or more contributor license agreements. See the NOTICE file | ||
| // distributed with this work for additional information | ||
| // regarding copyright ownership. The ASF licenses this file | ||
| // to you under the Apache License, Version 2.0 (the | ||
| // "License"); you may not use this file except in compliance | ||
| // with the License. You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, | ||
| // software distributed under the License is distributed on an | ||
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| // KIND, either express or implied. See the License for the | ||
| // specific language governing permissions and limitations | ||
| // under the License. | ||
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| #include "common/status.h" | ||
| #include "vec/aggregate_functions/aggregate_function.h" | ||
| #include "vec/columns/column.h" | ||
| #include "vec/columns/column_array.h" | ||
| #include "vec/columns/column_nullable.h" | ||
| #include "vec/common/assert_cast.h" | ||
| #include "vec/core/block.h" | ||
| #include "vec/core/column_numbers.h" | ||
| #include "vec/core/column_with_type_and_name.h" | ||
| #include "vec/core/types.h" | ||
| #include "vec/data_types/data_type.h" | ||
| #include "vec/data_types/data_type_array.h" | ||
| #include "vec/functions/function.h" | ||
| #include "vec/functions/simple_function_factory.h" | ||
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| namespace doris::vectorized { | ||
| #include "common/compile_check_begin.h" | ||
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| class FunctionArrayFlatten : public IFunction { | ||
| public: | ||
| static constexpr auto name = "array_flatten"; | ||
| static FunctionPtr create() { return std::make_shared<FunctionArrayFlatten>(); } | ||
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| /// Get function name. | ||
| String get_name() const override { return name; } | ||
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| size_t get_number_of_arguments() const override { return 1; } | ||
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| DataTypePtr get_return_type_impl(const DataTypes& arguments) const override { | ||
| DataTypePtr arg = arguments[0]; | ||
| while (is_array(arg)) { | ||
| arg = remove_nullable(assert_cast<const DataTypeArray*>(arg.get())->get_nested_type()); | ||
| } | ||
| return std::make_shared<DataTypeArray>(make_nullable(arg)); | ||
| } | ||
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| Status execute_impl(FunctionContext* context, Block& block, const ColumnNumbers& arguments, | ||
| uint32_t result, size_t input_rows_count) const override { | ||
| auto src_column = | ||
| block.get_by_position(arguments[0]).column->convert_to_full_column_if_const(); | ||
| auto* src_column_array_ptr = | ||
| assert_cast<ColumnArray*>(remove_nullable(src_column)->assume_mutable().get()); | ||
| ColumnArray* nested_src_column_array_ptr = src_column_array_ptr; | ||
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| auto result_column_offsets = | ||
| assert_cast<ColumnArray::ColumnOffsets&>(src_column_array_ptr->get_offsets_column()) | ||
| .clone(); | ||
| auto* offsets = assert_cast<ColumnArray::ColumnOffsets*>(result_column_offsets.get()) | ||
| ->get_data() | ||
| .data(); | ||
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| while (src_column_array_ptr->get_data_ptr()->is_column_array()) { | ||
| nested_src_column_array_ptr = assert_cast<ColumnArray*>( | ||
| remove_nullable(src_column_array_ptr->get_data_ptr())->assume_mutable().get()); | ||
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| for (size_t i = 0; i < input_rows_count; ++i) { | ||
| offsets[i] = nested_src_column_array_ptr->get_offsets()[offsets[i] - 1]; | ||
| } | ||
| src_column_array_ptr = nested_src_column_array_ptr; | ||
| } | ||
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| block.replace_by_position( | ||
| result, ColumnArray::create(assert_cast<const ColumnNullable&>( | ||
| nested_src_column_array_ptr->get_data()) | ||
| .clone(), | ||
| std::move(result_column_offsets))); | ||
| return Status::OK(); | ||
| } | ||
| }; | ||
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| void register_function_array_flatten(SimpleFunctionFactory& factory) { | ||
| factory.register_function<FunctionArrayFlatten>(); | ||
| } | ||
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| } // namespace doris::vectorized |
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67 changes: 67 additions & 0 deletions
67
...c/main/java/org/apache/doris/nereids/trees/expressions/functions/scalar/ArrayFlatten.java
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| // Licensed to the Apache Software Foundation (ASF) under one | ||
| // or more contributor license agreements. See the NOTICE file | ||
| // distributed with this work for additional information | ||
| // regarding copyright ownership. The ASF licenses this file | ||
| // to you under the Apache License, Version 2.0 (the | ||
| // "License"); you may not use this file except in compliance | ||
| // with the License. You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, | ||
| // software distributed under the License is distributed on an | ||
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| // KIND, either express or implied. See the License for the | ||
| // specific language governing permissions and limitations | ||
| // under the License. | ||
|
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| package org.apache.doris.nereids.trees.expressions.functions.scalar; | ||
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| import org.apache.doris.catalog.FunctionSignature; | ||
| import org.apache.doris.nereids.trees.expressions.Expression; | ||
| import org.apache.doris.nereids.trees.expressions.functions.CustomSignature; | ||
| import org.apache.doris.nereids.trees.expressions.functions.PropagateNullable; | ||
| import org.apache.doris.nereids.trees.expressions.visitor.ExpressionVisitor; | ||
| import org.apache.doris.nereids.types.ArrayType; | ||
| import org.apache.doris.nereids.types.DataType; | ||
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| import com.google.common.base.Preconditions; | ||
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| import java.util.List; | ||
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| /** | ||
| * ScalarFunction 'array_flatten' | ||
| */ | ||
| public class ArrayFlatten extends ScalarFunction | ||
| implements CustomSignature, PropagateNullable { | ||
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| /** | ||
| * constructor with 1 arguments. | ||
| */ | ||
| public ArrayFlatten(Expression arg) { | ||
| super("array_flatten", arg); | ||
| } | ||
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| @Override | ||
| public FunctionSignature customSignature() { | ||
| DataType dataType = getArgument(0).getDataType(); | ||
| while (dataType instanceof ArrayType) { | ||
| dataType = ((ArrayType) dataType).getItemType(); | ||
| } | ||
| return FunctionSignature.ret(ArrayType.of(dataType)).args(getArgument(0).getDataType()); | ||
| } | ||
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| /** | ||
| * withChildren. | ||
| */ | ||
| @Override | ||
| public ArrayFlatten withChildren(List<Expression> children) { | ||
| Preconditions.checkArgument(children.size() == 1); | ||
| return new ArrayFlatten(children.get(0)); | ||
| } | ||
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| @Override | ||
| public <R, C> R accept(ExpressionVisitor<R, C> visitor, C context) { | ||
| return visitor.visitArrayFlatten(this, context); | ||
| } | ||
| } |
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6 changes: 6 additions & 0 deletions
6
regression-test/data/query_p0/sql_functions/array_functions/array_flatten.out
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| @@ -0,0 +1,6 @@ | ||
| -- This file is automatically generated. You should know what you did if you want to edit this | ||
| -- !test -- | ||
| 1 [1, 2, 3] [1, 2, 3] [1, 2, 3] [1, 2, 3] ["a", "b", "c"] | ||
| 2 \N \N [] \N ["b", null] | ||
| 3 [1, 2, null] [null] [null, 2] [null, null, 3] [null, "aaaab", "ccc"] | ||
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|
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46 changes: 46 additions & 0 deletions
46
regression-test/suites/query_p0/sql_functions/array_functions/array_flatten.groovy
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,46 @@ | ||
| // Licensed to the Apache Software Foundation (ASF) under one | ||
| // or more contributor license agreements. See the NOTICE file | ||
| // distributed with this work for additional information | ||
| // regarding copyright ownership. The ASF licenses this file | ||
| // to you under the Apache License, Version 2.0 (the | ||
| // "License"); you may not use this file except in compliance | ||
| // with the License. You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, | ||
| // software distributed under the License is distributed on an | ||
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| // KIND, either express or implied. See the License for the | ||
| // specific language governing permissions and limitations | ||
| // under the License. | ||
|
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| suite("array_flatten") { | ||
| sql """DROP TABLE IF EXISTS t_array_flatten""" | ||
| sql """ | ||
| CREATE TABLE IF NOT EXISTS t_array_flatten ( | ||
| `k1` int(11) NULL COMMENT "", | ||
| `a1` array<tinyint(4)> NULL COMMENT "", | ||
| `aaa1` array<array<array<tinyint(4)>>> NULL COMMENT "", | ||
| `aa3` array<array<int(11)>> NOT NULL COMMENT "", | ||
| `aa5` array<array<largeint(40)>> NULL COMMENT "", | ||
| `aa14` array<array<string>> NULL COMMENT "" | ||
| ) ENGINE=OLAP | ||
| DUPLICATE KEY(`k1`) | ||
| DISTRIBUTED BY HASH(`k1`) BUCKETS 1 | ||
| PROPERTIES ( | ||
| "replication_allocation" = "tag.location.default: 1", | ||
| "storage_format" = "V2" | ||
| ) | ||
| """ | ||
| sql """ INSERT INTO t_array_flatten VALUES(1, [1, 2, 3],[[[1]],[[2],[3]]],[[1,2],[3]],[[1,2],[3]],[['a'],['b','c']]) """ | ||
| sql """ INSERT INTO t_array_flatten VALUES(2, null,null,[],null,[null,['b',null]]) """ | ||
| sql """ INSERT INTO t_array_flatten VALUES(3, [1, 2, null],[[[]],[[null],[]]],[[null,2],[]],[[null,null],[3]],[[null],['aaaab','ccc']]) """ | ||
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| qt_test """ | ||
| select k1, array_flatten(a1), array_flatten(aaa1), array_flatten(aa3), array_flatten(aa5), array_flatten(aa14) from t_array_flatten order by k1; | ||
| """ | ||
| } |