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[FEAT MERGE] implement dynamic sampling

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This commit is contained in:
wangt1xiuyi
2023-04-27 12:15:28 +00:00
committed by ob-robot
parent 56f85c9c76
commit f745b47cbc
86 changed files with 6754 additions and 2282 deletions
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26
src/share/system_variable/ob_system_variable_factory.cpp
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@ -278,6 +278,7 @@ const char *ObSysVarFactory::SYS_VAR_NAMES_SORTED_BY_NAME[] = {
"ob_trx_lock_timeout",
"ob_trx_timeout",
"optimizer_capture_sql_plan_baselines",
"optimizer_dynamic_sampling",
"optimizer_use_sql_plan_baselines",
"parallel_degree_limit",
"parallel_degree_policy",
@ -508,6 +509,7 @@ const ObSysVarClassType ObSysVarFactory::SYS_VAR_IDS_SORTED_BY_NAME[] = {
SYS_VAR_OB_TRX_LOCK_TIMEOUT,
SYS_VAR_OB_TRX_TIMEOUT,
SYS_VAR_OPTIMIZER_CAPTURE_SQL_PLAN_BASELINES,
SYS_VAR_OPTIMIZER_DYNAMIC_SAMPLING,
SYS_VAR_OPTIMIZER_USE_SQL_PLAN_BASELINES,
SYS_VAR_PARALLEL_DEGREE_LIMIT,
SYS_VAR_PARALLEL_DEGREE_POLICY,
@ -809,7 +811,8 @@ const char *ObSysVarFactory::SYS_VAR_NAMES_SORTED_BY_ID[] = {
"_force_order_preserve_set",
"parallel_degree_policy",
"parallel_degree_limit",
"parallel_min_scan_time_threshold"
"parallel_min_scan_time_threshold",
"optimizer_dynamic_sampling"
};
bool ObSysVarFactory::sys_var_name_case_cmp(const char *name1, const ObString &name2)
@ -1204,6 +1207,7 @@ int ObSysVarFactory::create_all_sys_vars()
+ sizeof(ObSysVarParallelDegreePolicy)
+ sizeof(ObSysVarParallelDegreeLimit)
+ sizeof(ObSysVarParallelMinScanTimeThreshold)
+ sizeof(ObSysVarOptimizerDynamicSampling)
;
void *ptr = NULL;
if (OB_ISNULL(ptr = allocator_.alloc(total_mem_size))) {
@ -3255,6 +3259,15 @@ int ObSysVarFactory::create_all_sys_vars()
ptr = (void *)((char *)ptr + sizeof(ObSysVarParallelMinScanTimeThreshold));
}
}
if (OB_SUCC(ret)) {
if (OB_ISNULL(sys_var_ptr = new (ptr)ObSysVarOptimizerDynamicSampling())) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_ERROR("fail to new ObSysVarOptimizerDynamicSampling", K(ret));
} else {
store_buf_[ObSysVarsToIdxMap::get_store_idx(static_cast<int64_t>(SYS_VAR_OPTIMIZER_DYNAMIC_SAMPLING))] = sys_var_ptr;
ptr = (void *)((char *)ptr + sizeof(ObSysVarOptimizerDynamicSampling));
}
}
}
return ret;
@ -5778,6 +5791,17 @@ int ObSysVarFactory::create_sys_var(ObSysVarClassType sys_var_id, ObBasicSysVar
}
break;
}
case SYS_VAR_OPTIMIZER_DYNAMIC_SAMPLING: {
void *ptr = NULL;
if (OB_ISNULL(ptr = allocator_.alloc(sizeof(ObSysVarOptimizerDynamicSampling)))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_ERROR("fail to alloc memory", K(ret), K(sizeof(ObSysVarOptimizerDynamicSampling)));
} else if (OB_ISNULL(sys_var_ptr = new (ptr)ObSysVarOptimizerDynamicSampling())) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_ERROR("fail to new ObSysVarOptimizerDynamicSampling", K(ret));
}
break;
}
default: {
ret = OB_ERR_UNEXPECTED;