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[FEAT MERGE] Support external table

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Co-authored-by: jingtaoye35 <1255153887@qq.com>
This commit is contained in:
wjhh2008
2023-04-29 15:11:49 +00:00
committed by ob-robot
parent ecb74a122c
commit 09ed904b58
164 changed files with 8074 additions and 667 deletions
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35
src/sql/optimizer/ob_access_path_estimation.cpp
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@ -74,6 +74,10 @@ int ObAccessPathEstimation::process_common_estimate_rowcount(ObOptimizerContext
if (OB_FAIL(process_vtable_default_estimation(paths.at(i)))) {
LOG_WARN("failed to process process vtable default estimation", K(ret));
}
} else if (EXTERNAL_TABLE == paths.at(i)->est_cost_info_.table_meta_info_->table_type_) {
if (OB_FAIL(process_external_table_estimation(paths.at(i)))) {
LOG_WARN("failed to process external table estimation", K(ret));
}
} else if (OB_FAIL(process_statistics_estimation(paths.at(i)))) {
LOG_WARN("failed to process statistics estimation", K(ret));
} else if (!use_storage_stat) {
@ -141,6 +145,32 @@ int ObAccessPathEstimation::check_path_can_use_stroage_estimate(const AccessPath
return ret;
}
int ObAccessPathEstimation::process_external_table_estimation(AccessPath *path)
{
//TODO [ExternalTable] need refine
int ret = OB_SUCCESS;
double output_row_count = 0.0;
if (OB_ISNULL(path)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("path is null", K(ret), K(path));
} else {
ObCostTableScanInfo &est_cost_info = path->est_cost_info_;
est_cost_info.batch_type_ = ObSimpleBatch::T_SCAN;
if (est_cost_info.table_meta_info_->has_opt_stat_) {
if (OB_FAIL(process_statistics_estimation(path))) {
LOG_WARN("failed to process statistics estimation", K(ret));
}
} else {
output_row_count = static_cast<double>(OB_EST_DEFAULT_VIRTUAL_TABLE_ROW_COUNT);
path->query_range_row_count_ = output_row_count;
path->phy_query_range_row_count_ = output_row_count;
path->index_back_row_count_ = 0;
path->output_row_count_ = output_row_count;
}
}
return ret;
}
int ObAccessPathEstimation::process_vtable_default_estimation(AccessPath *path)
{
int ret = OB_SUCCESS;
@ -1041,8 +1071,9 @@ int ObAccessPathEstimation::storage_estimate_full_table_rowcount(ObOptimizerCont
if (OB_ISNULL(ctx.get_session_info())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret));
} else if (is_virtual_table(meta.ref_table_id_) &&
!share::is_oracle_mapping_real_virtual_table(meta.ref_table_id_)) {
} else if ((is_virtual_table(meta.ref_table_id_) &&
!share::is_oracle_mapping_real_virtual_table(meta.ref_table_id_))
|| EXTERNAL_TABLE == meta.table_type_) {
// do nothing
} else if (OB_FAIL(ObSQLUtils::choose_best_replica_for_estimation(
part_loc_info,