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oceanbase/src/sql/engine/dml/ob_table_update_op.cpp

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/**
* Copyright (c) 2021 OceanBase
* OceanBase CE is licensed under Mulan PubL v2.
* You can use this software according to the terms and conditions of the Mulan PubL v2.
* You may obtain a copy of Mulan PubL v2 at:
* http://license.coscl.org.cn/MulanPubL-2.0
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PubL v2 for more details.
*/
#define USING_LOG_PREFIX SQL_ENG
#include "ob_table_update_op.h"
#include "share/system_variable/ob_system_variable.h"
#include "sql/engine/dml/ob_dml_service.h"
#include "sql/engine/dml/ob_trigger_handler.h"
#include "sql/engine/expr/ob_expr_calc_partition_id.h"
namespace oceanbase
{
using namespace common;
using namespace share;
using namespace storage;
namespace sql
{
OB_SERIALIZE_MEMBER((ObTableUpdateOpInput, ObTableModifyOpInput));
ObTableUpdateSpec::ObTableUpdateSpec(ObIAllocator &alloc, const ObPhyOperatorType type)
: ObTableModifySpec(alloc, type),
alloc_(alloc)
{
}
ObTableUpdateSpec::~ObTableUpdateSpec()
{
}
OB_DEF_SERIALIZE(ObTableUpdateSpec)
{
int ret = OB_SUCCESS;
int64_t tbl_cnt = upd_ctdefs_.count();
BASE_SER((ObTableUpdateSpec, ObTableModifySpec));
OB_UNIS_ENCODE(tbl_cnt);
for (int64_t i = 0; OB_SUCC(ret) && i < tbl_cnt; ++i) {
int64_t idx_cnt = upd_ctdefs_.at(i).count();
OB_UNIS_ENCODE(idx_cnt);
for (int64_t j = 0; OB_SUCC(ret) && j < idx_cnt; ++j) {
ObUpdCtDef *upd_ctdef = upd_ctdefs_.at(i).at(j);
if (OB_ISNULL(upd_ctdef)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("upd_ctdef is nullptr", K(ret));
}
OB_UNIS_ENCODE(*upd_ctdef);
}
}
return ret;
}
OB_DEF_DESERIALIZE(ObTableUpdateSpec)
{
int ret = OB_SUCCESS;
int64_t tbl_cnt = 0;
BASE_DESER((ObTableUpdateSpec, ObTableModifySpec));
OB_UNIS_DECODE(tbl_cnt);
if (OB_SUCC(ret) && tbl_cnt > 0) {
OZ(upd_ctdefs_.allocate_array(alloc_, tbl_cnt));
}
ObDMLCtDefAllocator<ObUpdCtDef> ctdef_allocator(alloc_);
for (int64_t i = 0; OB_SUCC(ret) && i < tbl_cnt; ++i) {
int64_t index_cnt = 0;
OB_UNIS_DECODE(index_cnt);
OZ(upd_ctdefs_.at(i).allocate_array(alloc_, index_cnt));
for (int64_t j = 0; OB_SUCC(ret) && j < index_cnt; ++j) {
ObUpdCtDef *upd_ctdef = ctdef_allocator.alloc();
if (OB_ISNULL(upd_ctdef)) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("alloc upd_ctdef failed", K(ret));
}
OB_UNIS_DECODE(*upd_ctdef);
upd_ctdefs_.at(i).at(j) = upd_ctdef;
}
}
return ret;
}
OB_DEF_SERIALIZE_SIZE(ObTableUpdateSpec)
{
int64_t len = 0;
int64_t tbl_cnt = upd_ctdefs_.count();
BASE_ADD_LEN((ObTableUpdateSpec, ObTableModifySpec));
OB_UNIS_ADD_LEN(tbl_cnt);
for (int64_t i = 0; i < tbl_cnt; ++i) {
int64_t index_cnt = upd_ctdefs_.at(i).count();
OB_UNIS_ADD_LEN(index_cnt);
for (int64_t j = 0; j < index_cnt; ++j) {
ObUpdCtDef *upd_ctdef = upd_ctdefs_.at(i).at(j);
if (upd_ctdef != nullptr) {
OB_UNIS_ADD_LEN(*upd_ctdef);
}
}
}
return len;
}
ObTableUpdateOp::ObTableUpdateOp(ObExecContext &exec_ctx, const ObOpSpec &spec,
ObOpInput *input)
: ObTableModifyOp(exec_ctx, spec, input),
err_log_service_(ObOperator::get_eval_ctx())
{
}
int ObTableUpdateOp::inner_open()
{
int ret = OB_SUCCESS;
NG_TRACE(update_open);
//execute update with das
if (OB_FAIL(ObTableModifyOp::inner_open())) {
LOG_WARN("open child operator failed", K(ret));
} else if (OB_UNLIKELY(MY_SPEC.upd_ctdefs_.empty())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("del ctdef is invalid", K(ret), KP(this));
} else if (OB_UNLIKELY(iter_end_)) {
//do nothing
} else if (OB_FAIL(inner_open_with_das())) {
LOG_WARN("inner open with das failed", K(ret));
}
NG_TRACE(update_end);
return ret;
}
int ObTableUpdateOp::inner_close()
{
int ret = OB_SUCCESS;
if (OB_FAIL(close_table_for_each())) {
LOG_WARN("close table for each", K(ret));
}
int close_ret = ObTableModifyOp::inner_close();
return (OB_SUCCESS == ret) ? close_ret : ret;
}
int ObTableUpdateOp::inner_rescan()
{
int ret = OB_SUCCESS;
if (!MY_SPEC.gi_above_) {
ret = OB_NOT_SUPPORTED;
LOG_WARN("table update rescan not supported", K(ret));
LOG_USER_ERROR(OB_NOT_SUPPORTED, "table update rescan");
} else if (OB_FAIL(ObTableModifyOp::inner_rescan())) {
LOG_WARN("rescan child operator failed", K(ret));
} else if (OB_UNLIKELY(iter_end_)) {
//do nothing
} else if (OB_FAIL(close_table_for_each())) {
LOG_WARN("close table for each failed", K(ret));
} else if (OB_FAIL(open_table_for_each())) {
LOG_WARN("open table for each failed", K(ret));
}
return ret;
}
int ObTableUpdateOp::inner_switch_iterator()
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObTableModifyOp::inner_switch_iterator())) {
LOG_WARN("switch single child operator iterator failed", K(ret));
}
return ret;
}
int ObTableUpdateOp::inner_get_next_row()
{
int ret = OB_SUCCESS;
if (iter_end_) {
LOG_DEBUG("can't get gi task, iter end", K(MY_SPEC.id_));
ret = OB_ITER_END;
} else {
while (OB_SUCC(ret)) {
if (OB_FAIL(try_check_status())) {
LOG_WARN("check status failed", K(ret));
} else if (OB_FAIL(get_next_row_from_child())) {
if (OB_ITER_END != ret) {
LOG_WARN("fail to get next row", K(ret));
} else {
iter_end_ = true;
}
} else if (OB_FAIL(update_row_to_das())) {
LOG_WARN("update row to das failed", K(ret));
} else if (is_error_logging_ && err_log_rt_def_.first_err_ret_ != OB_SUCCESS) {
clear_evaluated_flag();
err_log_rt_def_.curr_err_log_record_num_++;
err_log_rt_def_.reset();
continue;
} else if (MY_SPEC.is_returning_) {
break;
}
}
if (OB_ITER_END == ret) {
if (!MY_SPEC.upd_ctdefs_.at(0).at(0)->has_instead_of_trigger_ && OB_FAIL(upd_rows_post_proc())) {
LOG_WARN("do update rows post process failed", K(ret));
} else {
//can not overwrite the original error code
ret = OB_ITER_END;
}
}
}
return ret;
}
OB_INLINE int ObTableUpdateOp::inner_open_with_das()
{
int ret = OB_SUCCESS;
if (OB_FAIL(open_table_for_each())) {
LOG_WARN("init update rtdef failed", K(ret), K(MY_SPEC.upd_ctdefs_.count()));
} else {
dml_rtctx_.set_pick_del_task_first();
}
return ret;
}
OB_INLINE int ObTableUpdateOp::open_table_for_each()
{
int ret = OB_SUCCESS;
if (OB_FAIL(upd_rtdefs_.allocate_array(ctx_.get_allocator(), MY_SPEC.upd_ctdefs_.count()))) {
LOG_WARN("allocate update rtdef failed", K(ret), K(MY_SPEC.upd_ctdefs_.count()));
}
trigger_clear_exprs_.reset();
for (int64_t i = 0; OB_SUCC(ret) && i < upd_rtdefs_.count(); ++i) {
UpdRtDefArray &rtdefs = upd_rtdefs_.at(i);
const ObTableUpdateSpec::UpdCtDefArray &ctdefs = MY_SPEC.upd_ctdefs_.at(i);
if (OB_FAIL(rtdefs.allocate_array(ctx_.get_allocator(), ctdefs.count()))) {
LOG_WARN("allocate update rtdefs failed", K(ret), K(ctdefs.count()));
}
for (int64_t j = 0; OB_SUCC(ret) && j < rtdefs.count(); ++j) {
const ObUpdCtDef &upd_ctdef = *ctdefs.at(j);
ObUpdRtDef &upd_rtdef = rtdefs.at(j);
upd_rtdef.primary_rtdef_ = &rtdefs.at(0);
if (OB_FAIL(ObDMLService::init_upd_rtdef(dml_rtctx_, upd_rtdef, upd_ctdef, trigger_clear_exprs_))) {
LOG_WARN("init upd rtdef failed", K(ret));
}
}
if (OB_SUCC(ret) && !rtdefs.empty()) {
const ObUpdCtDef &primary_upd_ctdef = *ctdefs.at(0);
ObUpdRtDef &primary_upd_rtdef = rtdefs.at(0);
if (primary_upd_ctdef.error_logging_ctdef_.is_error_logging_) {
is_error_logging_ = true;
}
if (OB_FAIL(ObDMLService::process_before_stmt_trigger(primary_upd_ctdef,
primary_upd_rtdef,
dml_rtctx_,
ObDmlEventType::DE_UPDATING))) {
LOG_WARN("process before stmt trigger failed", K(ret));
} else {
//this table is being accessed by dml operator, mark its table location as writing
primary_upd_rtdef.dupd_rtdef_.table_loc_->is_writing_ = true;
}
}
}
return ret;
}
OB_INLINE int ObTableUpdateOp::close_table_for_each()
{
int ret = OB_SUCCESS;
for (int64_t i = 0; OB_SUCC(ret) && i < upd_rtdefs_.count(); ++i) {
if (!upd_rtdefs_.at(i).empty()) {
const ObUpdCtDef &primary_upd_ctdef = *MY_SPEC.upd_ctdefs_.at(i).at(0);
ObUpdRtDef &primary_upd_rtdef = upd_rtdefs_.at(i).at(0);
if (OB_FAIL(ObDMLService::process_after_stmt_trigger(primary_upd_ctdef,
primary_upd_rtdef,
dml_rtctx_,
ObDmlEventType::DE_UPDATING))) {
LOG_WARN("process after stmt trigger failed", K(ret));
}
}
}
//whether it is successful or not, needs to release rtdef
for (int64_t i = 0; i < upd_rtdefs_.count(); ++i) {
upd_rtdefs_.at(i).release_array();
}
return ret;
}
OB_INLINE int ObTableUpdateOp::calc_multi_tablet_id(const ObUpdCtDef &upd_ctdef,
ObExpr &part_id_expr,
ObTabletID &tablet_id,
bool check_exist)
{
int ret = OB_SUCCESS;
ObObjectID partition_id = OB_INVALID_ID;
if (OB_FAIL(ObExprCalcPartitionBase::calc_part_and_tablet_id(&part_id_expr,
eval_ctx_,
partition_id,
tablet_id))) {
LOG_WARN("extract part and tablet id failed", K(ret));
} else if (check_exist && (!upd_ctdef.multi_ctdef_->hint_part_ids_.empty()
&& !has_exist_in_array(
upd_ctdef.multi_ctdef_->hint_part_ids_, partition_id))) {
ret = OB_PARTITION_NOT_MATCH;
LOG_WARN("Partition not match",
K(ret), K(partition_id), K(upd_ctdef.multi_ctdef_->hint_part_ids_));
}
return ret;
}
OB_INLINE int ObTableUpdateOp::calc_tablet_loc(const ObUpdCtDef &upd_ctdef,
ObUpdRtDef &upd_rtdef,
ObDASTabletLoc *&old_tablet_loc,
ObDASTabletLoc *&new_tablet_loc)
{
int ret = OB_SUCCESS;
if (MY_SPEC.use_dist_das_) {
ObTabletID old_tablet_id;
ObTabletID new_tablet_id;
if (upd_ctdef.multi_ctdef_ != nullptr) {
ObExpr *calc_part_id_old = upd_ctdef.multi_ctdef_->calc_part_id_old_;
ObExpr *calc_part_id_new = upd_ctdef.multi_ctdef_->calc_part_id_new_;
if (calc_part_id_old != nullptr) {
if (OB_FAIL(calc_multi_tablet_id(upd_ctdef, *calc_part_id_old, old_tablet_id))) {
LOG_WARN("calc multi old part key failed", K(ret));
} else if (OB_FAIL(calc_multi_tablet_id(upd_ctdef, *calc_part_id_new, new_tablet_id, true))) {
LOG_WARN("calc multi new part key failed", K(ret));
}
}
}
if (OB_SUCC(ret)) {
ObDASTableLoc &table_loc = *upd_rtdef.dupd_rtdef_.table_loc_;
if (old_tablet_id == new_tablet_id) {
if (OB_FAIL(DAS_CTX(ctx_).extended_tablet_loc(table_loc, old_tablet_id, old_tablet_loc))) {
LOG_WARN("extended old row tablet loc failed", K(ret), K(old_tablet_id));
} else {
new_tablet_loc = old_tablet_loc;
}
} else if (OB_FAIL(DAS_CTX(ctx_).extended_tablet_loc(table_loc, old_tablet_id, old_tablet_loc))) {
LOG_WARN("extended old tablet location failed", K(ret), K(old_tablet_id));
} else if (OB_FAIL(DAS_CTX(ctx_).extended_tablet_loc(table_loc, new_tablet_id, new_tablet_loc))) {
LOG_WARN("extended new tablet location failed", K(ret), K(new_tablet_id));
}
}
} else {
//direct write delete row to storage
old_tablet_loc = MY_INPUT.get_tablet_loc();
new_tablet_loc = old_tablet_loc;
}
return ret;
}
OB_INLINE int ObTableUpdateOp::update_row_to_das()
{
int ret = OB_SUCCESS;
for (int64_t i = 0; OB_SUCC(ret) && i < MY_SPEC.upd_ctdefs_.count(); ++i) {
const ObTableUpdateSpec::UpdCtDefArray &ctdefs = MY_SPEC.upd_ctdefs_.at(i);
UpdRtDefArray &rtdefs = upd_rtdefs_.at(i);
for (int64_t j = 0; OB_SUCC(ret) && j < ctdefs.count(); ++j) {
//update each table with fetched row
const ObUpdCtDef &upd_ctdef = *ctdefs.at(j);
ObUpdRtDef &upd_rtdef = rtdefs.at(j);
ObDASTabletLoc *old_tablet_loc = nullptr;
ObDASTabletLoc *new_tablet_loc = nullptr;
bool is_skipped = false;
++upd_rtdef.cur_row_num_;
if (OB_FAIL(ObDMLService::process_update_row(upd_ctdef, upd_rtdef, is_skipped, *this))) {
LOG_WARN("process update row failed", K(ret));
} else if (OB_UNLIKELY(is_skipped)) {
//this row has been skipped, so can not write to DAS buffer(include its global index)
//so need to break this loop
break;
} else if (OB_FAIL(calc_tablet_loc(upd_ctdef, upd_rtdef, old_tablet_loc, new_tablet_loc))) {
LOG_WARN("calc partition key failed", K(ret));
} else if (OB_FAIL(TriggerHandle::do_handle_after_row(
*this, upd_ctdef.trig_ctdef_, upd_rtdef.trig_rtdef_, ObTriggerEvents::get_update_event()))) {
LOG_WARN("failed to handle after trigger", K(ret));
} else if (OB_FAIL(ObDMLService::update_row(upd_ctdef, upd_rtdef, old_tablet_loc, new_tablet_loc, dml_rtctx_))) {
LOG_WARN("insert row with das failed", K(ret));
} else {
++upd_rtdef.found_rows_;
}
} //end for global index ctdef loop
if (OB_SUCC(ret)) {
int64_t update_rows = rtdefs.at(0).is_row_changed_ ? 1 : 0;
if (OB_FAIL(merge_implict_cursor(0, update_rows, 0, 1))) {
LOG_WARN("merge implict cursor failed", K(ret));
}
}
} // end for table ctdef loop
if (is_error_logging_ &&
OB_SUCCESS != err_log_rt_def_.first_err_ret_ &&
should_catch_err(ret)) {
if (OB_FAIL(err_log_service_.insert_err_log_record(GET_MY_SESSION(ctx_),
MY_SPEC.upd_ctdefs_.at(0).at(0)->error_logging_ctdef_,
err_log_rt_def_,
ObDASOpType::DAS_OP_TABLE_UPDATE))) {
LOG_WARN("fail to insert_err_log_record", K(ret));
}
}
return ret;
}
int ObTableUpdateOp::check_update_affected_row()
{
int ret = OB_SUCCESS;
for (int64_t i = 0; OB_SUCC(ret) && i < upd_rtdefs_.count(); ++i) {
UpdRtDefArray &upd_rtdef_array = upd_rtdefs_.at(i);
const ObUpdCtDef *primary_upd_ctdef = MY_SPEC.upd_ctdefs_.at(i).at(0);
ObUpdRtDef &primary_upd_rtdef = upd_rtdef_array.at(0);
int64_t primary_write_rows = 0;
primary_write_rows += primary_upd_rtdef.dupd_rtdef_.affected_rows_;
if (primary_upd_rtdef.ddel_rtdef_ != nullptr) {
//update rows across partitions, need to add das delete op's affected rows
primary_write_rows += primary_upd_rtdef.ddel_rtdef_->affected_rows_;
}
if (primary_upd_rtdef.dlock_rtdef_ != nullptr) {
primary_write_rows += primary_upd_rtdef.dlock_rtdef_->affected_rows_;
}
for (int64_t j = 1; OB_SUCC(ret) && j < upd_rtdef_array.count(); ++j) {
int64_t index_write_rows = 0;
const ObUpdCtDef *index_upd_ctdef = MY_SPEC.upd_ctdefs_.at(i).at(j);
ObUpdRtDef &index_upd_rtdef = upd_rtdef_array.at(j);
index_write_rows += index_upd_rtdef.dupd_rtdef_.affected_rows_;
if (index_upd_rtdef.ddel_rtdef_ != nullptr) {
//update rows across partitions, need to add das delete op's affected rows
index_write_rows += index_upd_rtdef.ddel_rtdef_->affected_rows_;
}
if (index_upd_rtdef.dlock_rtdef_ != nullptr) {
index_write_rows += index_upd_rtdef.dlock_rtdef_->affected_rows_;
}
if (primary_write_rows != index_write_rows) {
ret = OB_ERR_DEFENSIVE_CHECK;
ObString func_name = ObString::make_string("check_update_affected_row");
LOG_USER_ERROR(OB_ERR_DEFENSIVE_CHECK, func_name.length(), func_name.ptr());
LOG_ERROR("Fatal Error!!! data table update affected row is not match with index table",
K(ret), K(primary_write_rows), K(index_write_rows),
KPC(primary_upd_ctdef), K(primary_upd_rtdef),
KPC(index_upd_ctdef), K(index_upd_rtdef));
}
}
if (OB_SUCC(ret) && !primary_upd_ctdef->dupd_ctdef_.is_ignore_) {
if (primary_upd_rtdef.found_rows_ != primary_write_rows) {
ret = OB_ERR_DEFENSIVE_CHECK;
ObString func_name = ObString::make_string("check_update_affected_row");
LOG_USER_ERROR(OB_ERR_DEFENSIVE_CHECK, func_name.length(), func_name.ptr());
LOG_ERROR("Fatal Error!!! data table update affected row is not match with found rows",
K(ret), K(primary_write_rows), K(primary_upd_rtdef.found_rows_),
KPC(primary_upd_ctdef), K(primary_upd_rtdef));
}
}
}
return ret;
}
OB_INLINE int ObTableUpdateOp::upd_rows_post_proc()
{
int ret = OB_SUCCESS;
ObPhysicalPlanCtx *plan_ctx = GET_PHY_PLAN_CTX(ctx_);
ObSQLSessionInfo *session = GET_MY_SESSION(ctx_);
int64_t found_rows = 0;
int64_t changed_rows = 0;
//iterator end, if das ref has task, need flush all task data to partition storage
if (dml_rtctx_.das_ref_.has_task()) {
if (OB_FAIL(dml_rtctx_.das_ref_.pick_del_task_to_first())) {
LOG_WARN("pick delete das task to first failed", K(ret));
} else if (OB_FAIL(submit_all_dml_task())) {
LOG_WARN("execute all update das task failed", K(ret));
}
}
for (int64_t i = 0; OB_SUCC(ret) && i < upd_rtdefs_.count(); ++i) {
ObUpdRtDef &upd_rtdef = upd_rtdefs_.at(i).at(0);
found_rows += upd_rtdef.found_rows_;
changed_rows += upd_rtdef.dupd_rtdef_.affected_rows_;
if (upd_rtdef.ddel_rtdef_ != nullptr) {
//update rows across partitions, need to add das delete op's affected rows
changed_rows += upd_rtdef.ddel_rtdef_->affected_rows_;
//insert new row to das after old row has been deleted in storage
//reference to: https://work.aone.alibaba-inc.com/issue/31915604
}
LOG_DEBUG("update rows post proc", K(ret), K(found_rows), K(changed_rows), K(upd_rtdef));
}
if (OB_SUCC(ret)) {
plan_ctx->add_row_matched_count(found_rows);
plan_ctx->add_row_duplicated_count(changed_rows);
plan_ctx->add_affected_rows(session->get_capability().cap_flags_.OB_CLIENT_FOUND_ROWS ?
found_rows : changed_rows);
}
if (OB_SUCC(ret) && GCONF.enable_defensive_check()) {
if (OB_FAIL(check_update_affected_row())) {
LOG_WARN("check index upd consistency failed", K(ret));
}
}
return ret;
}
OB_INLINE int ObTableUpdateOp::get_next_row_from_child()
{
int ret = OB_SUCCESS;
clear_evaluated_flag();
if (OB_FAIL(child_->get_next_row())) {
if (OB_ITER_END != ret) {
LOG_WARN("fail to get next row", K(ret));
}
} else {
LOG_TRACE("child output row", "row", ROWEXPR2STR(eval_ctx_, child_->get_spec().output_));
}
return ret;
}
} // end namespace sql
} // end namespace oceanbase
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