Files
doris/be/src/util/jni_native_method.cpp
zhangstar333 458adf6c91 [improvement](jdbc) refator jdbc of copy result set by batch (#16337)
have test jdbc external table with read,  10%+ performance improvement after optimization
2023-02-04 22:51:55 +08:00

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1.1 KiB
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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.
#include "jni_native_method.h"
#include "vec/columns/column_string.h"
namespace doris {
jlong JavaNativeMethods::resizeColumn(JNIEnv* env, jclass clazz, jlong columnAddr, jint length) {
auto column = reinterpret_cast<vectorized::ColumnString::Chars*>(columnAddr);
column->resize(length);
return reinterpret_cast<jlong>(column->data());
}
} // namespace doris