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

[FEAT MERGE]: online optimizer stats gather.

Browse Source 
Co-authored-by: obdev <obdev@oceanbase.com>
This commit is contained in:
Monk-Liu
2023-01-28 13:54:38 +08:00
committed by ob-robot
parent 735401c8d7
commit 9484175163
74 changed files with 3416 additions and 85 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
src/sql/resolver/dml/ob_hint.cpp
View File

@ -283,6 +283,7 @@ void ObGlobalHint::reset()
disable_cost_based_transform_ = false;
opt_params_.reset();
ob_ddl_schema_versions_.reuse();
osg_hint_.flags_ = 0;
}
int ObGlobalHint::merge_global_hint(const ObGlobalHint &other)
@ -305,6 +306,7 @@ int ObGlobalHint::merge_global_hint(const ObGlobalHint &other)
merge_opt_features_version_hint(other.opt_features_version_);
disable_transform_ |= other.disable_transform_;
disable_cost_based_transform_ |= other.disable_cost_based_transform_;
osg_hint_.flags_ |= other.osg_hint_.flags_;
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_))) {
@ -458,6 +460,32 @@ int ObGlobalHint::print_global_hint(planText &plan_text) const
if (OB_SUCC(ret) && OB_FAIL(opt_params_.print_opt_param_hint(plan_text))) {
LOG_WARN("failed to print opt param hint", K(ret));
}
if (OB_SUCC(ret) && OB_FAIL(osg_hint_.print_osg_hint(plan_text))) {
LOG_WARN("failed to print optimizer statistics gathering hint", K(ret));
}
return ret;
}
void ObGlobalHint::merge_osg_hint(int8_t flag) {
osg_hint_.flags_ |= flag;
}
int ObOptimizerStatisticsGatheringHint::print_osg_hint(planText &plan_text) const
{
int ret = OB_SUCCESS;
const char* outline_indent = ObQueryHint::get_outline_indent(plan_text.is_oneline_);
char *buf = plan_text.buf;
int64_t &buf_len = plan_text.buf_len;
int64_t &pos = plan_text.pos;
if ((flags_ & OB_NO_OPT_STATS_GATHER)) {
PRINT_GLOBAL_HINT_STR("NO_GATHER_OPTIMIZER_STATISTICS");
}
if (OB_SUCC(ret) && (flags_ & OB_OPT_STATS_GATHER)) {
PRINT_GLOBAL_HINT_STR("GATHER_OPTIMIZER_STATISTICS");
}
if (OB_SUCC(ret) && (flags_ & OB_APPEND_HINT)) {
PRINT_GLOBAL_HINT_STR("APPEND");
}
return ret;
}