patch 4.0
This commit is contained in:
wangzelin.wzl
576
src/sql/engine/basic/ob_select_into_op.cpp
Normal file
576
src/sql/engine/basic/ob_select_into_op.cpp
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@ -0,0 +1,576 @@
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/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#define USING_LOG_PREFIX SQL_ENG
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#include "ob_select_into_op.h"
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#include "sql/engine/ob_physical_plan.h"
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#include "sql/engine/ob_exec_context.h"
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#include "sql/engine/cmd/ob_variable_set_executor.h"
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#include "share/backup/ob_backup_io_adapter.h"
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#include "share/ob_device_manager.h"
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#include "sql/resolver/ob_resolver_utils.h"
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namespace oceanbase
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{
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using namespace common;
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namespace sql
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{
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OB_SERIALIZE_MEMBER((ObSelectIntoSpec, ObOpSpec), into_type_, user_vars_,
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outfile_name_, filed_str_, line_str_, closed_cht_, is_optional_);
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int ObSelectIntoOp::inner_open()
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{
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int ret = OB_SUCCESS;
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file_name_ = MY_SPEC.outfile_name_;
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filed_str_ = MY_SPEC.filed_str_;
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line_str_ = MY_SPEC.line_str_;
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int64_t row_count = 0;
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bool need_check = false;
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ObPhysicalPlanCtx *phy_plan_ctx = NULL;
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ObSQLSessionInfo *session = NULL;
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const ObItemType into_type = MY_SPEC.into_type_;
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if (OB_ISNULL(phy_plan_ctx = ctx_.get_physical_plan_ctx())) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("get phy_plan_ctx failed", K(ret));
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} else if (OB_ISNULL(session = ctx_.get_my_session())) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("get session failed", K(ret));
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} else if (OB_FAIL(ObSQLUtils::get_param_value(MY_SPEC.outfile_name_,
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phy_plan_ctx->get_param_store(),
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file_name_,
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need_check))) {
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LOG_WARN("get param value failed", K(ret));
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} else if (OB_FAIL(ObSQLUtils::get_param_value(MY_SPEC.filed_str_,
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phy_plan_ctx->get_param_store(),
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filed_str_,
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need_check))) {
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LOG_WARN("get param value failed", K(ret));
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} else if (OB_FAIL(ObSQLUtils::get_param_value(MY_SPEC.line_str_,
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phy_plan_ctx->get_param_store(),
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line_str_,
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need_check))) {
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LOG_WARN("get param value failed", K(ret));
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} else if (OB_FAIL(session->get_sql_select_limit(top_limit_cnt_))) {
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LOG_WARN("fail tp get sql select limit", K(ret));
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} else {
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// since we call get_next_row in inner_open, we have to set opened_ first in avoid to a infinite loop.
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opened_ = true;
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}
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if (OB_SUCC(ret)) {
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ObString path = file_name_.get_varchar().trim();
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if (path.prefix_match_ci(OB_OSS_PREFIX)) {
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file_location_ = IntoFileLocation::REMOTE_OSS;
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url_ = path.split_on('?');
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url_.trim();
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if (OB_FAIL(access_info_.set(url_.ptr(), path.ptr()))) {
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LOG_WARN("fail to set access info", K(ret), K(path));
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}
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//create buffer
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if (OB_SUCC(ret)) {
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const int64_t buf_len = OB_MALLOC_BIG_BLOCK_SIZE;
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char *buf = NULL;
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if (OB_ISNULL(buf = static_cast<char*>(ctx_.get_allocator().alloc(buf_len)))) {
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ret = OB_ALLOCATE_MEMORY_FAILED;
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LOG_WARN("fail to allocate buffer", K(ret), K(buf_len));
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} else {
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data_writer_.init(buf, buf_len);
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}
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}
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//init device handle
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if (OB_SUCC(ret)) {
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ObBackupIoAdapter util;
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if (url_.empty() || access_info_.is_valid()) {
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ret = OB_FILE_NOT_EXIST;
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LOG_WARN("file path not exist", K(ret), K(url_), K(access_info_));
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} else if (OB_FAIL(util.get_and_init_device(device_handle_, &access_info_, url_))) {
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LOG_WARN("fail to init device", K(ret), K(url_), K(access_info_));
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}
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}
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} else {
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file_location_ = IntoFileLocation::SERVER_DISK;
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url_ = path;
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}
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}
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if (OB_SUCC(ret)
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&& T_INTO_OUTFILE == into_type
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&& IntoFileLocation::SERVER_DISK == file_location_) {
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ObString file_name = url_;
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ObString file_path = file_name.split_on(file_name.reverse_find('/'));
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char full_path_buf[PATH_MAX+1];
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char *actual_path = nullptr;
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ObSqlString sql_str;
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if (OB_FAIL(sql_str.append(file_path.empty() ? "." : file_path))) {
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LOG_WARN("fail to append string", K(ret));
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} else if (OB_ISNULL(actual_path = realpath(sql_str.ptr(), full_path_buf))) {
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ret = OB_FILE_NOT_EXIST;
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LOG_WARN("file not exist", K(ret), K(sql_str));
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}
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if (OB_SUCC(ret)) {
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ObString secure_file_priv;
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if (OB_FAIL(session->get_secure_file_priv(secure_file_priv))) {
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LOG_WARN("failed to get secure file priv", K(ret));
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} else if (OB_FAIL(ObResolverUtils::check_secure_path(secure_file_priv, actual_path))) {
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LOG_WARN("failed to check secure path", K(ret), K(secure_file_priv));
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}
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}
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}
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while (OB_SUCC(ret) && row_count < top_limit_cnt_) {
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if (is_vectorized()) {
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int64_t batch_size = MIN(spec_.max_batch_size_, top_limit_cnt_ - row_count);
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const ObBatchRows *brs = NULL;
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if (OB_FAIL(ObOperator::get_next_batch(batch_size, brs))) {
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LOG_WARN("get next batch failed", K(ret));
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} else if (brs->size_ > 0) {
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row_count += brs->size_ - brs->skip_->accumulate_bit_cnt(brs->size_);
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if (T_INTO_OUTFILE == into_type) {
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if (OB_FAIL(into_outfile_batch(*brs))) {
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LOG_WARN("into outfile batch failed", K(ret));
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}
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} else {
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ObEvalCtx::BatchInfoScopeGuard guard(eval_ctx_);
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guard.set_batch_size(brs->size_);
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for (int64_t i = 0; OB_SUCC(ret) && i < brs->size_; i++) {
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if (brs->skip_->contain(i)) {
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continue;
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}
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guard.set_batch_idx(i);
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if (T_INTO_VARIABLES == into_type) {
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if (OB_FAIL(into_varlist())) {
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LOG_WARN("into varlist failed", K(ret));
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}
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} else {
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if (OB_FAIL(into_dumpfile())) {
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LOG_WARN("into dumpfile failed", K(ret));
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}
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}
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}
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}
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}
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if (OB_SUCC(ret) && brs->end_) {
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ret = OB_ITER_END;
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}
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} else {
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if (OB_FAIL(ObOperator::get_next_row())) {
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if (OB_LIKELY(OB_ITER_END == ret)) {
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} else {
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LOG_WARN("get next row failed", K(ret));
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}
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} else {
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++row_count;
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if (T_INTO_VARIABLES == into_type) {
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if (OB_FAIL(into_varlist())) {
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LOG_WARN("into varlist failed", K(ret));
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}
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} else if (T_INTO_OUTFILE == into_type) {
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if (OB_FAIL(into_outfile())) {
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LOG_WARN("into outfile failed", K(ret));
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}
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} else {
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if (OB_FAIL(into_dumpfile())) {
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LOG_WARN("into dumpfile failed", K(ret));
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}
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}
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}
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}
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if (OB_SUCC(ret) || OB_ITER_END == ret) { // if into user variables or into dumpfile, must be one row
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if ((T_INTO_VARIABLES == into_type || T_INTO_DUMPFILE == into_type) && row_count > 1) {
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ret = OB_ERR_TOO_MANY_ROWS;
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LOG_WARN("more than one row for into variables or into dumpfile", K(ret), K(row_count));
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}
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}
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} //end while
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if (OB_ITER_END == ret) {
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ret = OB_SUCCESS;
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}
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if (OB_SUCC(ret)) { // set affected rows
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phy_plan_ctx->set_affected_rows(row_count);
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}
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return ret;
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}
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int ObSelectIntoOp::inner_get_next_row()
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{
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int ret = OB_SUCCESS;
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clear_evaluated_flag();
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if (OB_FAIL(child_->get_next_row())) {
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if (OB_ITER_END != ret) {
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LOG_WARN("get next row failed", K(ret));
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} else {
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// OB_ITER_END
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}
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}
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return ret;
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}
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int ObSelectIntoOp::inner_get_next_batch(const int64_t max_row_cnt)
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{
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int ret = OB_SUCCESS;
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clear_evaluated_flag();
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const ObBatchRows *child_brs = NULL;
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if (OB_FAIL(child_->get_next_batch(max_row_cnt, child_brs))) {
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LOG_WARN("get next batch failed", K(ret));
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} else {
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brs_.size_ = child_brs->size_;
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brs_.end_ = child_brs->end_;
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if (brs_.size_ > 0) {
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brs_.skip_->deep_copy(*(child_brs->skip_), brs_.size_);
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const ObIArray<ObExpr*> &select_exprs = MY_SPEC.output_;
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for (int64_t i = 0; i < select_exprs.count() && OB_SUCC(ret); i++) {
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if (OB_FAIL(select_exprs.at(i)->eval_batch(eval_ctx_, *brs_.skip_, brs_.size_))) {
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LOG_WARN("eval expr failed", K(ret));
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}
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}
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}
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}
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return ret;
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}
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int ObSelectIntoOp::inner_rescan()
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{
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int ret = OB_SUCCESS;
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return ret;
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}
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int ObSelectIntoOp::inner_close()
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{
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int ret = OB_SUCCESS;
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if (file_location_ == IntoFileLocation::REMOTE_OSS) {
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if (OB_FAIL(data_writer_.flush(get_flush_function()))) {
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LOG_WARN("fail to flush data", K(ret));
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}
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}
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return ret;
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}
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int ObSelectIntoOp::get_row_str(const int64_t buf_len,
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bool is_first_row,
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char *buf,
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int64_t &pos)
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{
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int ret = OB_SUCCESS;
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const ObObj &filed_str = filed_str_;
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char closed_cht = MY_SPEC.closed_cht_;
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bool is_optional = MY_SPEC.is_optional_;
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const ObIArray<ObExpr*> &select_exprs = MY_SPEC.output_;
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if (!is_first_row && line_str_.is_varying_len_char_type()) { // lines terminated by "a"
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ret = databuff_printf(buf, buf_len, pos, "%.*s", line_str_.get_varchar().length(),
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line_str_.get_varchar().ptr());
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}
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for (int i = 0 ; OB_SUCC(ret) && i < select_exprs.count() ; i++) {
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const ObExpr *expr = select_exprs.at(i);
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if (0 != closed_cht && (!is_optional || ob_is_string_type(expr->datum_meta_.type_))) {
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// closed by "a" (for all cell) or optionally by "a" (for string cell)
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if (OB_FAIL(databuff_printf(buf, buf_len, pos, "%c", closed_cht))) {
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LOG_WARN("print closed character failed", K(ret), K(closed_cht));
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}
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}
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if (OB_SUCC(ret)) {
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ObObj cell;
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ObDatum *datum = NULL;
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if (OB_FAIL(expr->eval(eval_ctx_, datum))) {
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LOG_WARN("expr eval failed", K(ret));
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} else if (OB_FAIL(datum->to_obj(cell, expr->obj_meta_))) {
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LOG_WARN("to obj failed", K(ret));
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} else if (OB_FAIL(cell.print_plain_str_literal(buf, buf_len, pos))) { // cell value
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LOG_WARN("print sql failed", K(ret), K(cell));
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} else if (0 != closed_cht && (!is_optional || ob_is_string_type(expr->datum_meta_.type_))) {
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if (OB_FAIL(databuff_printf(buf, buf_len, pos, "%c", closed_cht))) {
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LOG_WARN("print closed character failed", K(ret), K(closed_cht));
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}
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}
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// filed terminated by "a"
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if (OB_SUCC(ret) && i != select_exprs.count() - 1 && filed_str.is_varying_len_char_type()) {
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if (OB_FAIL(databuff_printf(buf, buf_len, pos, "%.*s", filed_str.get_varchar().length(), filed_str.get_varchar().ptr()))) {
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LOG_WARN("print filed str failed", K(ret), K(filed_str));
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}
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}
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}
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}
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return ret;
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}
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int ObSelectIntoOp::open_file()
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{
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int ret = OB_SUCCESS;
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if (IntoFileLocation::REMOTE_OSS == file_location_) {
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ObIODOpt opt;
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ObIODOpts iod_opts;
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opt.set("AccessType", "appender");
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iod_opts.opts_ = &opt;
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iod_opts.opt_cnt_ = 1;
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ObSqlString url_with_suffix;
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bool is_exist = false;
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if (OB_FAIL(url_with_suffix.assign(url_))) {
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LOG_WARN("fail to assign string", K(ret));
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} else if (0 != split_file_id_ //using origin file name, assuming file do not need split
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&& OB_FAIL(url_with_suffix.append_fmt(".extend%ld", split_file_id_))) {
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LOG_WARN("fail to append string", K(ret));
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} else if (OB_FAIL(device_handle_->exist(url_with_suffix.ptr(), is_exist))) {
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LOG_WARN("fail to check file exist", K(ret));
|
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} else if (is_exist) {
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ret = OB_FILE_ALREADY_EXIST;
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LOG_WARN("fail already exist", K(ret), K(url_));
|
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} else if (OB_FAIL(device_handle_->open(url_with_suffix.ptr(), -1, 0, fd_, &iod_opts))) {
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LOG_WARN("fail to open file", K(ret));
|
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}
|
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} else {
|
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if (OB_FAIL(file_appender_.create(url_, true))) {
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LOG_WARN("create dumpfile failed", K(ret), K(url_));
|
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}
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file_location_ = IntoFileLocation::SERVER_DISK;
|
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}
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return ret;
|
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}
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void ObSelectIntoOp::close_file()
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{
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if (IntoFileLocation::SERVER_DISK == file_location_) {
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file_appender_.close();
|
||||
} else {
|
||||
if (fd_.is_valid()) {
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device_handle_->close(fd_);
|
||||
fd_.reset();
|
||||
}
|
||||
}
|
||||
}
|
||||
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||||
std::function<int(const char *, int64_t)> ObSelectIntoOp::get_flush_function()
|
||||
{
|
||||
return [this](const char *data, int64_t data_len) -> int
|
||||
{
|
||||
int ret = OB_SUCCESS;
|
||||
int64_t write_size = 0;
|
||||
int64_t begin_ts = ObTimeUtility::current_time();
|
||||
if (OB_FAIL(device_handle_->write(fd_, data, data_len, write_size))) {
|
||||
LOG_WARN("fail to write device", K(ret));
|
||||
} else if (OB_UNLIKELY(write_size != data_len)) {
|
||||
ret = OB_IO_ERROR;
|
||||
LOG_WARN("write size not equal super block size", K(ret), K(write_size), K(data_len));
|
||||
} else {
|
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write_offset_ += write_size;
|
||||
int64_t end_ts = ObTimeUtility::current_time();
|
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int64_t cost_time = end_ts - begin_ts;
|
||||
long double speed = (cost_time <= 0) ? 0 :
|
||||
(long double) write_size * 1000.0 * 1000.0 / 1024.0 / 1024.0 / cost_time;
|
||||
long double total_write = (long double) write_offset_ / 1024.0 / 1024.0;
|
||||
_OB_LOG(TRACE, "write oss stat, time:%ld write_size:%ld speed:%.2Lf MB/s total_write:%.2Lf MB",
|
||||
cost_time, write_size, speed, total_write);
|
||||
}
|
||||
return ret;
|
||||
};
|
||||
}
|
||||
|
||||
int ObSelectIntoOp::split_file()
|
||||
{
|
||||
int ret = OB_SUCCESS;
|
||||
if (OB_FAIL(data_writer_.flush(get_flush_function()))) {
|
||||
LOG_WARN("fail to flush data", K(ret));
|
||||
} else {
|
||||
close_file();
|
||||
}
|
||||
|
||||
//rename the first file name
|
||||
/* rename not support for current version
|
||||
if (OB_SUCC(ret) && 0 == split_file_id_) {
|
||||
ObSqlString url_old;
|
||||
ObSqlString url_new;
|
||||
|
||||
if (OB_FAIL(url_old.assign(url_))) {
|
||||
LOG_WARN("fail to assign string", K(ret));
|
||||
} else if (OB_FAIL(url_new.assign(url_))) {
|
||||
LOG_WARN("fail to assign string", K(ret));
|
||||
} else if (OB_FAIL(url_new.append_fmt(".part%ld", split_file_id_))) {
|
||||
LOG_WARN("fail to append format", K(ret));
|
||||
} else if (OB_FAIL(device_handle_->rename(url_old.ptr(), url_new.ptr()))) {
|
||||
LOG_WARN("fail to rename", K(ret));
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
//create new file
|
||||
if (OB_SUCC(ret)) {
|
||||
split_file_id_++;
|
||||
if (OB_FAIL(open_file())) {
|
||||
LOG_WARN("fail to open file", K(ret));
|
||||
}
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int ObSelectIntoOp::write_file(const char *data, int64_t data_len)
|
||||
{
|
||||
int ret = OB_SUCCESS;
|
||||
if (file_location_ == IntoFileLocation::SERVER_DISK) {
|
||||
if (OB_FAIL(file_appender_.append(data, data_len, false))) {
|
||||
LOG_WARN("failed to append file", K(ret), K(data_len));
|
||||
}
|
||||
} else {
|
||||
const int64_t MAX_OSS_FILE_SIZE = 5LL * 1024 * 1024 * 1024; //5G
|
||||
if (write_bytes_ + data_len > MAX_OSS_FILE_SIZE) {
|
||||
if (OB_FAIL(split_file())) {
|
||||
LOG_WARN("fail to split file", K(ret));
|
||||
} else {
|
||||
write_bytes_ = 0;
|
||||
}
|
||||
}
|
||||
if (OB_SUCC(ret)) {
|
||||
if (OB_FAIL(data_writer_.write(data, data_len, get_flush_function()))) {
|
||||
LOG_WARN("fail to write data into cloud", K(ret));
|
||||
} else {
|
||||
write_bytes_ += data_len;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int ObSelectIntoOp::into_dumpfile()
|
||||
{
|
||||
int ret = OB_SUCCESS;
|
||||
char buf[MAX_VALUE_LENGTH];
|
||||
int64_t buf_len = MAX_VALUE_LENGTH;
|
||||
int64_t pos = 0;
|
||||
if (OB_FAIL(get_row_str(buf_len, is_first_, buf, pos))) {
|
||||
LOG_WARN("get str failed", K(ret));
|
||||
} else if (is_first_) { // create file
|
||||
if (OB_FAIL(file_appender_.create(file_name_.get_varchar(), true))) {
|
||||
LOG_WARN("create dumpfile failed", K(ret), K(file_name_));
|
||||
} else {
|
||||
is_first_ = false;
|
||||
}
|
||||
}
|
||||
if (OB_SUCC(ret)) {
|
||||
if (OB_FAIL(file_appender_.append(buf, pos, false))) {
|
||||
LOG_WARN("failed to append file");
|
||||
} else {
|
||||
//do nothing
|
||||
}
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int ObSelectIntoOp::into_outfile()
|
||||
{
|
||||
int ret = OB_SUCCESS;
|
||||
const ObIArray<ObExpr*> &select_exprs = MY_SPEC.output_;
|
||||
if (select_exprs.count() != 1) {
|
||||
ret = OB_ERR_UNEXPECTED;
|
||||
LOG_WARN("invalid count of exprs in select into outfile", K(select_exprs.count()), K(ret));
|
||||
} else if (is_first_) { // create file
|
||||
if (OB_FAIL(open_file())) {
|
||||
LOG_WARN("open file failed", K(ret), K(file_name_));
|
||||
} else {
|
||||
is_first_ = false;
|
||||
}
|
||||
}
|
||||
if (OB_SUCC(ret)) {
|
||||
ObDatum *datum = NULL;
|
||||
if (OB_FAIL(select_exprs.at(0)->eval(eval_ctx_, datum))) {
|
||||
LOG_WARN("eval expr failed", K(ret));
|
||||
} else if (OB_FAIL(write_file(datum->ptr_, datum->len_))) {
|
||||
LOG_WARN("failed to append file");
|
||||
} else {
|
||||
//do nothing
|
||||
}
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int ObSelectIntoOp::into_outfile_batch(const ObBatchRows &brs)
|
||||
{
|
||||
int ret = OB_SUCCESS;
|
||||
const ObIArray<ObExpr*> &select_exprs = MY_SPEC.output_;
|
||||
if (select_exprs.count() != 1) {
|
||||
ret = OB_ERR_UNEXPECTED;
|
||||
LOG_WARN("invalid count of exprs in select into outfile", K(select_exprs.count()), K(ret));
|
||||
} else if (is_first_) { // create file
|
||||
if (OB_FAIL(open_file())) {
|
||||
LOG_WARN("open file failed", K(ret), K(file_name_));
|
||||
} else {
|
||||
is_first_ = false;
|
||||
}
|
||||
}
|
||||
OZ(select_exprs.at(0)->eval_batch(eval_ctx_, *brs.skip_, brs.size_));
|
||||
if (OB_SUCC(ret)) {
|
||||
ObDatumVector datum_vector = select_exprs.at(0)->locate_expr_datumvector(eval_ctx_);
|
||||
for (int64_t i = 0; i < brs.size_ && OB_SUCC(ret); i++) {
|
||||
if (brs.skip_->contain(i)) {
|
||||
// do nothing
|
||||
} else if (OB_FAIL(write_file(datum_vector.at(i)->ptr_, datum_vector.at(i)->len_))) {
|
||||
LOG_WARN("failed to append file");
|
||||
} else {
|
||||
//do nothing
|
||||
}
|
||||
}
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int ObSelectIntoOp::into_varlist()
|
||||
{
|
||||
int ret = OB_SUCCESS;
|
||||
const ObIArray<ObExpr*> &select_exprs = MY_SPEC.output_;
|
||||
const ObIArray<ObString> &user_vars = MY_SPEC.user_vars_;
|
||||
if (select_exprs.count() != user_vars.count()) {
|
||||
ret = OB_ERR_COLUMN_SIZE;
|
||||
LOG_WARN("user vars count should be equal to select exprs count" , K(ret),
|
||||
K(select_exprs.count()), K(user_vars.count()));
|
||||
} else {
|
||||
for (int i = 0 ; i < user_vars.count(); ++i) {
|
||||
const ObString &var_name = user_vars.at(i);
|
||||
ObObj obj;
|
||||
ObDatum *datum = NULL;
|
||||
if (OB_FAIL(select_exprs.at(i)->eval(eval_ctx_, datum))) {
|
||||
LOG_WARN("eval expr failed", K(ret));
|
||||
} else if (OB_FAIL(datum->to_obj(obj, select_exprs.at(i)->obj_meta_))) {
|
||||
LOG_WARN("convert datum to obj failed", K(ret), KPC(select_exprs.at(i)));
|
||||
} else if (OB_FAIL(ObVariableSetExecutor::set_user_variable(obj, var_name,
|
||||
ctx_.get_my_session()))) {
|
||||
LOG_WARN("set user variable failed", K(ret));
|
||||
}
|
||||
}
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
void ObSelectIntoOp::destroy()
|
||||
{
|
||||
file_appender_.~ObFileAppender();
|
||||
close_file();
|
||||
if (NULL != device_handle_) {
|
||||
common::ObDeviceManager::get_instance().release_device(device_handle_);
|
||||
device_handle_ = NULL;
|
||||
}
|
||||
ObOperator::destroy();
|
||||
}
|
||||
|
||||
|
||||
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user