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[FEAT MERGE] ELR & WeakRead feature enhancement

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This commit is contained in:
obdev
2022-12-27 05:08:57 +00:00
committed by ob-robot
parent 9f3038df4f
commit 5aed6bd3d8
61 changed files with 1664 additions and 142 deletions
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13
src/sql/ob_result_set.cpp
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@ -938,14 +938,17 @@ int ObResultSet::get_read_consistency(ObConsistencyLevel &consistency)
consistency = INVALID_CONSISTENCY;
int ret = OB_SUCCESS;
ObPhysicalPlan* physical_plan_ = static_cast<ObPhysicalPlan*>(cache_obj_guard_.get_cache_obj());
if (OB_ISNULL(physical_plan_)) {
ret = OB_NOT_INIT;
LOG_WARN("physical_plan", K_(physical_plan), K(ret));
ret = OB_ERR_UNEXPECTED;
if (OB_ISNULL(physical_plan_)
|| OB_ISNULL(exec_ctx_)
|| OB_ISNULL(exec_ctx_->get_sql_ctx())) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("physical_plan", K_(physical_plan), K(exec_ctx_->get_sql_ctx()), K(ret));
} else {
const ObPhyPlanHint &phy_hint = physical_plan_->get_phy_plan_hint();
if (stmt::T_SELECT == stmt_type_) { // select才有weak
if (OB_UNLIKELY(phy_hint.read_consistency_ != INVALID_CONSISTENCY)) {
if (exec_ctx_->get_sql_ctx()->is_protocol_weak_read_) {
consistency = WEAK;
} else if (OB_UNLIKELY(phy_hint.read_consistency_ != INVALID_CONSISTENCY)) {
consistency = phy_hint.read_consistency_;
} else {
consistency = my_session_.get_consistency_level();