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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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11
src/sql/engine/ob_exec_context.cpp
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@ -719,10 +719,9 @@ int ObExecContext::init_physical_plan_ctx(const ObPhysicalPlan &plan)
{
int ret = OB_SUCCESS;
int64_t foreign_key_checks = 0;
if (OB_ISNULL(phy_plan_ctx_) || OB_ISNULL(my_session_)) {
ret = OB_NOT_INIT;
LOG_WARN("physical_plan or ctx is NULL", K_(phy_plan_ctx), K_(my_session), K(ret));
ret = OB_ERR_UNEXPECTED;
if (OB_ISNULL(phy_plan_ctx_) || OB_ISNULL(my_session_) || OB_ISNULL(sql_ctx_)) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("invalid argument", K_(phy_plan_ctx), K_(my_session), K(ret));
} else if (OB_FAIL(my_session_->get_foreign_key_checks(foreign_key_checks))) {
LOG_WARN("failed to get foreign_key_checks", K(ret));
} else {
@ -747,7 +746,9 @@ int ObExecContext::init_physical_plan_ctx(const ObPhysicalPlan &plan)
}
if (OB_SUCC(ret)) {
if (stmt::T_SELECT == plan.get_stmt_type()) { // select才有weak
if (OB_UNLIKELY(phy_plan_hint.read_consistency_ != INVALID_CONSISTENCY)) {
if (sql_ctx_->is_protocol_weak_read_) {
consistency = WEAK;
} else if (OB_UNLIKELY(phy_plan_hint.read_consistency_ != INVALID_CONSISTENCY)) {
consistency = phy_plan_hint.read_consistency_;
} else {
consistency = my_session_->get_consistency_level();