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[SCN REFACTOR] replace flash back snapshot and remove read snapshot session

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This commit is contained in:
wangt1xiuyi
2022-11-28 01:54:50 +00:00
committed by ob-robot
parent c4c13f6296
commit 11485d6a98
268 changed files with 6763 additions and 7737 deletions
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61
src/sql/optimizer/ob_log_table_scan.cpp
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@ -1202,6 +1202,9 @@ int ObLogTableScan::print_used_hint(planText &plan_text)
} else if (NULL != table_hint->parallel_hint_ && table_hint->parallel_hint_->get_parallel() > 1
&& OB_FAIL(table_hint->parallel_hint_->print_hint(plan_text))) {
LOG_WARN("failed to print table parallel hint", K(ret));
} else if (NULL != table_hint->use_das_hint_ && (table_hint->use_das_hint_->is_enable_hint() ? use_das() : !use_das())
&& OB_FAIL(table_hint->use_das_hint_->print_hint(plan_text))) {
LOG_WARN("failed to print table parallel hint", K(ret));
} else if (table_hint->index_list_.empty()) {
/*do nothing*/
} else if (OB_UNLIKELY(table_hint->index_list_.count() != table_hint->index_hints_.count()
@ -1247,31 +1250,24 @@ int ObLogTableScan::print_outline_data(planText &plan_text)
int64_t &pos = plan_text.pos;
TableItem *table_item = NULL;
ObString qb_name;
ObItemType index_type = ref_table_id_ == index_table_id_ ? T_FULL_HINT: T_INDEX_HINT;
const ObDMLStmt *stmt = NULL;
const ObTableParallelHint *parallel_hint = NULL;
if (OB_ISNULL(get_plan()) || OB_ISNULL(stmt = get_plan()->get_stmt())
|| OB_ISNULL(stmt->get_query_ctx())) {
if (OB_ISNULL(get_plan()) || OB_ISNULL(stmt = get_plan()->get_stmt())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpected NULl", K(ret), K(get_plan()), K(stmt));
} else if (OB_FAIL(stmt->get_query_ctx()->get_qb_name(stmt->get_stmt_id(), qb_name))) {
} else if (OB_FAIL(stmt->get_qb_name(qb_name))) {
LOG_WARN("fail to get qb_name", K(ret), K(stmt->get_stmt_id()));
} else if (OB_ISNULL(table_item = stmt->get_table_item_by_id(table_id_))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("fail to get table item", K(ret), "table_id", table_id_);
} else if (T_FULL_HINT == index_type && // parallel hint
NULL != (parallel_hint = get_plan()->get_log_plan_hint().get_parallel_hint(table_id_)) &&
parallel_hint->get_parallel() > 1) {
if (OB_FAIL(BUF_PRINTF("%s%s(@\"%.*s\" ",
ObQueryHint::get_outline_indent(plan_text.is_oneline_),
ObHint::get_hint_name(T_TABLE_PARALLEL),
qb_name.length(),
qb_name.ptr()))) {
LOG_WARN("fail to print index hint", K(ret));
} else if (OB_FAIL(get_plan()->print_outline_table(plan_text, table_item))) {
LOG_WARN("fail to print index hint table", K(ret));
} else if (OB_FAIL(BUF_PRINTF(" %ld)", parallel_hint->get_parallel()))) {
LOG_WARN("fail print parallel", K(ret), K_(parallel));
} else if (NULL != (parallel_hint = get_plan()->get_log_plan_hint().get_parallel_hint(table_id_)) &&
parallel_hint->get_parallel() > 1) { // parallel hint
ObTableParallelHint temp_hint;
temp_hint.set_parallel(parallel_hint->get_parallel());
temp_hint.set_qb_name(qb_name);
temp_hint.get_table().set_table(*table_item);
if (OB_FAIL(temp_hint.print_hint(plan_text))) {
LOG_WARN("failed to print table parallel hint", K(ret));
}
}
@ -1287,19 +1283,24 @@ int ObLogTableScan::print_outline_data(planText &plan_text)
&& log_op_def::LOG_JOIN == get_parent()->get_type()
&& static_cast<ObLogJoin*>(get_parent())->is_late_mat()) {
// late materialization right table, do not print index hint.
} else if (OB_FAIL(BUF_PRINTF("%s%s(@\"%.*s\" ",
ObQueryHint::get_outline_indent(plan_text.is_oneline_),
ObHint::get_hint_name(index_type),
qb_name.length(),
qb_name.ptr()))) {
LOG_WARN("fail to print index hint", K(ret));
} else if (OB_FAIL(get_plan()->print_outline_table(plan_text, table_item))) {
LOG_WARN("fail to print index hint table", K(ret));
} else if (T_INDEX_HINT == index_type &&
OB_FAIL(BUF_PRINTF(" \"%.*s\"", get_index_name().length(), get_index_name().ptr()))) {
LOG_WARN("fail to print index name", K(ret));
} else if (OB_FAIL(BUF_PRINTF(")"))) {
} else { /*do nothing*/ }
} else {
ObIndexHint index_hint(ref_table_id_ == index_table_id_ ? T_FULL_HINT: T_INDEX_HINT);
index_hint.set_qb_name(qb_name);
index_hint.get_table().set_table(*table_item);
if (T_INDEX_HINT == index_hint.get_hint_type()) {
index_hint.get_index_name().assign(get_index_name().ptr(), get_index_name().length());
}
if (OB_FAIL(index_hint.print_hint(plan_text))) {
LOG_WARN("failed to print index hint", K(ret));
} else if (use_das()) {
ObIndexHint use_das_hint(T_USE_DAS_HINT);
use_das_hint.set_qb_name(qb_name);
use_das_hint.get_table().set_table(*table_item);
if (OB_FAIL(use_das_hint.print_hint(plan_text))) {
LOG_WARN("failed to print use das hint", K(ret));
}
}
}
return ret;
}