hcq/oceanbase
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

set the initial value of wrs to scn min

Browse Source
This commit is contained in:
obdev
2022-11-28 02:55:06 +00:00
committed by ob-robot
parent 99d4f56fec
commit 87a9357186
406 changed files with 6473 additions and 50308 deletions
Download Patch File Download Diff File Expand all files Collapse all files

92
src/sql/resolver/dml/ob_hint.cpp
View File

@ -243,7 +243,6 @@ bool ObGlobalHint::has_hint_exclude_concurrent() const
|| -1 != topk_precision_
|| 0 != sharding_minimum_row_count_
|| UNSET_QUERY_TIMEOUT != query_timeout_
|| false != hotspot_
|| common::INVALID_CONSISTENCY != read_consistency_
|| OB_USE_PLAN_CACHE_INVALID != plan_cache_policy_
|| false != force_trace_log_
@ -266,7 +265,6 @@ void ObGlobalHint::reset()
topk_precision_ = -1;
sharding_minimum_row_count_ = 0;
query_timeout_ = UNSET_QUERY_TIMEOUT;
hotspot_ = false;
read_consistency_ = common::INVALID_CONSISTENCY;
plan_cache_policy_ = OB_USE_PLAN_CACHE_INVALID;
force_trace_log_ = false;
@ -282,6 +280,7 @@ void ObGlobalHint::reset()
dops_.reuse();
opt_features_version_ = UNSET_OPT_FEATURES_VERSION;
disable_transform_ = false;
disable_cost_based_transform_ = false;
opt_params_.reset();
ob_ddl_schema_versions_.reuse();
}
@ -289,7 +288,6 @@ void ObGlobalHint::reset()
int ObGlobalHint::merge_global_hint(const ObGlobalHint &other)
{
int ret = OB_SUCCESS;
hotspot_ |= other.hotspot_;
merge_read_consistency_hint(other.read_consistency_, other.frozen_version_);
merge_topk_hint(other.topk_precision_, other.sharding_minimum_row_count_);
merge_query_timeout_hint(other.query_timeout_);
@ -306,6 +304,7 @@ int ObGlobalHint::merge_global_hint(const ObGlobalHint &other)
merge_param_option_hint(other.param_option_);
merge_opt_features_version_hint(other.opt_features_version_);
disable_transform_ |= other.disable_transform_;
disable_cost_based_transform_ |= other.disable_cost_based_transform_;
if (OB_FAIL(merge_monitor_hints(other.monitoring_ids_))) {
LOG_WARN("failed to merge monitor hints", K(ret));
} else if (OB_FAIL(merge_dop_hint(other.dops_))) {
@ -324,7 +323,9 @@ int ObGlobalHint::assign(const ObGlobalHint &other)
return merge_global_hint(other);
}
// zhanyue todo: add some hint
// hints below not print
// MAX_CONCURRENT
// ObDDLSchemaVersionHint
int ObGlobalHint::print_global_hint(planText &plan_text) const
{
int ret = OB_SUCCESS;
@ -333,12 +334,6 @@ int ObGlobalHint::print_global_hint(planText &plan_text) const
int64_t &pos = plan_text.pos;
const char* outline_indent = ObQueryHint::get_outline_indent(plan_text.is_oneline_);
const char *HOTSPOT = "HOTSPOT";
const char *TOPK = "TOPK";
const char *MAX_CONCURRENT = "MAX_CONCURRENT";
const char *TRACING_HINT = "TRACING";
const char *STAT_HINT = "STAT";
#define PRINT_GLOBAL_HINT_STR(hint_str) \
if (OB_FAIL(BUF_PRINTF("%s%s", outline_indent, hint_str))) { \
LOG_WARN("failed to print hint", K(ret), K(hint_str)); } \
@ -347,6 +342,30 @@ int ObGlobalHint::print_global_hint(planText &plan_text) const
if (OB_FAIL(BUF_PRINTF("%s%s(%ld)", outline_indent, hint_name, num))) { \
LOG_WARN("failed to print hint", K(ret), K(hint_name)); } \
//TOPK
if (OB_SUCC(ret) && (-1 < topk_precision_ || 0 < sharding_minimum_row_count_)) {
if (OB_FAIL(BUF_PRINTF("%sTOPK(%ld %ld)", outline_indent, topk_precision_,
sharding_minimum_row_count_))) {
LOG_WARN("failed to print topk hint", K(ret));
}
}
// TRACING & STAT
if (OB_SUCC(ret) && !monitoring_ids_.empty()) {
if (OB_FAIL(print_monitoring_hints(plan_text))) {
LOG_WARN("failed to print monitoring hints", K(ret));
}
}
//DOP
if (OB_SUCC(ret) && !dops_.empty()) {
for (int64_t i = 0; OB_SUCC(ret) && i < dops_.count(); ++i) {
if (OB_FAIL(BUF_PRINTF("%sDOP(%lu %lu)", outline_indent, dops_.at(i).dfo_, dops_.at(i).dop_))) {
LOG_WARN("failed to print dop hint", K(ret));
}
}
}
//READ_CONSISTENCY && FROZEN_VERSION
if (OB_SUCC(ret) && (read_consistency_ != UNSET_CONSISTENCY)) {
if (FROZEN == read_consistency_ && frozen_version_ != -1) {
@ -430,16 +449,67 @@ int ObGlobalHint::print_global_hint(planText &plan_text) const
} else if (OB_FAIL(BUF_PRINTF("\')"))) {
}
}
// OPTIMIZER_FEATURES_ENABLE
if (OB_SUCC(ret) && disable_query_transform()) {
PRINT_GLOBAL_HINT_STR("NO_QUERY_TRANSFORMATION");
}
if (OB_SUCC(ret) && disable_cost_based_transform()) {
PRINT_GLOBAL_HINT_STR("NO_COST_BASED_QUERY_TRANSFORMATION");
}
if (OB_SUCC(ret) && OB_FAIL(opt_params_.print_opt_param_hint(plan_text))) {
LOG_WARN("failed to print opt param hint", K(ret));
}
return ret;
}
int ObGlobalHint::print_monitoring_hints(planText &plan_text) const
{
int ret = OB_SUCCESS;
if (!monitoring_ids_.empty()) {
char *buf = plan_text.buf;
int64_t &buf_len = plan_text.buf_len;
int64_t &pos = plan_text.pos;
const char* outline_indent = ObQueryHint::get_outline_indent(plan_text.is_oneline_);
ObSEArray<uint64_t, 4> tracing_ids;
ObSEArray<uint64_t, 4> stat_ids;
for (int64_t i = 0; OB_SUCC(ret) && i < monitoring_ids_.count(); ++i) {
if ((monitoring_ids_.at(i).flags_ & ObMonitorHint::OB_MONITOR_TRACING)
&& OB_FAIL(tracing_ids.push_back(monitoring_ids_.at(i).id_))) {
LOG_WARN("failed to push back", K(ret));
} else if ((monitoring_ids_.at(i).flags_ & ObMonitorHint::OB_MONITOR_STAT)
&& OB_FAIL(stat_ids.push_back(monitoring_ids_.at(i).id_))) {
LOG_WARN("failed to push back", K(ret));
}
}
if (OB_SUCC(ret) && !tracing_ids.empty()) {
if (OB_FAIL(BUF_PRINTF("%sTRACING(%lu", outline_indent, tracing_ids.at(0)))) {
LOG_WARN("failed to print tracing hint", K(ret));
}
for (int64_t i = 1; OB_SUCC(ret) && i < tracing_ids.count(); ++i) {
if (OB_FAIL(BUF_PRINTF(" %lu", tracing_ids.at(i)))) {
LOG_WARN("failed to print tracing hint", K(ret));
}
}
if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("failed to print tracing hint", K(ret));
}
}
if (OB_SUCC(ret) && !stat_ids.empty()) {
if (OB_FAIL(BUF_PRINTF("%sSTAT(%lu", outline_indent, stat_ids.at(0)))) {
LOG_WARN("failed to print tracing hint", K(ret));
}
for (int64_t i = 1; OB_SUCC(ret) && i < stat_ids.count(); ++i) {
if (OB_FAIL(BUF_PRINTF(" %lu", stat_ids.at(i)))) {
LOG_WARN("failed to print tracing hint", K(ret));
}
}
if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("failed to print tracing hint", K(ret));
}
}
}
return ret;
}
DEFINE_ENUM_FUNC(ObOptParamHint::OptParamType, opt_param, OPT_PARAM_TYPE_DEF, ObOptParamHint::);
int ObOptParamHint::print_opt_param_hint(planText &plan_text) const