c5718928df
explode(ArrayColumn) desc: > Create a row for each element in the array column. explode_outer(ArrayColumn) desc: > Create a row for each element in the array column. Unlike explode, if the array is null or empty, it returns null. Usage example: 1. create a table with array column, and insert some data; 2. open enable_lateral_view and enable_vectorized_engine; ``` set enable_lateral_view = true; set enable_vectorized_engine=true; ``` 3. use explode_outer ``` > select * from array_test; +------+------+--------+ | k1 | k2 | k3 | +------+------+--------+ | 3 | NULL | NULL | | 1 | 2 | [1, 2] | | 2 | 3 | NULL | | 4 | NULL | [] | +------+------+--------+ > select k1,explode_column from array_test LATERAL VIEW explode_outer(k3) TempExplodeView as explode_column; +------+----------------+ | k1 | explode_column | +------+----------------+ | 1 | 1 | | 1 | 2 | | 2 | NULL | | 4 | NULL | | 3 | NULL | +------+----------------+ ``` 4. explode usage example. explode return empty rows while the ARRAY is null or empty ``` > select k1,explode_column from array_test LATERAL VIEW explode(k3) TempExplodeView as explode_column; +------+----------------+ | k1 | explode_column | +------+----------------+ | 1 | 1 | | 1 | 2 | +------+----------------+ ```
36 lines
1.4 KiB
CMake
36 lines
1.4 KiB
CMake
# 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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# where to put generated libraries
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set(EXECUTABLE_OUTPUT_PATH "${BUILD_DIR}/test/vec/function")
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ADD_BE_TEST(function_array_element_test)
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ADD_BE_TEST(function_array_index_test)
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ADD_BE_TEST(function_bitmap_test)
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ADD_BE_TEST(function_comparison_test)
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ADD_BE_TEST(function_hash_test)
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ADD_BE_TEST(function_math_test)
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ADD_BE_TEST(function_string_test)
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ADD_BE_TEST(function_time_test)
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ADD_BE_TEST(function_ifnull_test)
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ADD_BE_TEST(function_nullif_test)
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ADD_BE_TEST(function_like_test)
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ADD_BE_TEST(function_arithmetic_test)
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ADD_BE_TEST(function_json_test)
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ADD_BE_TEST(function_geo_test)
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ADD_BE_TEST(table_function_test)
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