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remove useless codes
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00a9c30363
commit
122c9794a6
@ -130,77 +130,6 @@ public:
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ColumnsWithTypeAndName map_args{{key_array, key_array_type, ""}, {value_array, value_array_type, ""}};
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return function_map_from_arrays->build(map_args)->execute(map_args, result_type, input_rows_count);
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}
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/*
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ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr & result_type, size_t input_rows_count) const override
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{
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size_t num_elements = arguments.size();
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if (num_elements == 0)
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return result_type->createColumnConstWithDefaultValue(input_rows_count);
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const auto & result_type_map = static_cast<const DataTypeMap &>(*result_type);
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const DataTypePtr & key_type = result_type_map.getKeyType();
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const DataTypePtr & value_type = result_type_map.getValueType();
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Columns columns_holder(num_elements);
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ColumnRawPtrs column_ptrs(num_elements);
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for (size_t i = 0; i < num_elements; ++i)
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{
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const auto & arg = arguments[i];
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const auto to_type = i % 2 == 0 ? key_type : value_type;
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ColumnPtr preprocessed_column = castColumn(arg, to_type);
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preprocessed_column = preprocessed_column->convertToFullColumnIfConst();
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columns_holder[i] = std::move(preprocessed_column);
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column_ptrs[i] = columns_holder[i].get();
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}
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/// Create and fill the result map.
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MutableColumnPtr keys_data = key_type->createColumn();
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MutableColumnPtr values_data = value_type->createColumn();
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MutableColumnPtr offsets = DataTypeUInt64().createColumn();
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size_t total_elements = input_rows_count * num_elements / 2;
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keys_data->reserve(total_elements);
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values_data->reserve(total_elements);
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auto & offsets_data = assert_cast<ColumnUInt64 &>(*offsets).getData();
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offsets_data.resize_exact(input_rows_count);
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IColumn::Offset current_offset = 0;
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if (num_elements == 2)
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{
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for (size_t i = 0; i < input_rows_count; ++i)
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{
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++current_offset;
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offsets_data[i] = current_offset;
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}
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keys_data->insertRangeFrom(*column_ptrs[0], 0, input_rows_count);
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values_data->insertRangeFrom(*column_ptrs[1], 0, input_rows_count);
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}
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else
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{
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for (size_t i = 0; i < input_rows_count; ++i)
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{
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for (size_t j = 0; j < num_elements; j += 2)
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{
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keys_data->insertFrom(*column_ptrs[j], i);
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values_data->insertFrom(*column_ptrs[j + 1], i);
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}
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current_offset += num_elements / 2;
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offsets_data[i] = current_offset;
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}
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}
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auto nested_column = ColumnArray::create(
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ColumnTuple::create(Columns{std::move(keys_data), std::move(values_data)}),
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std::move(offsets));
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return ColumnMap::create(nested_column);
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}
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*/
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private:
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ContextPtr context;
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