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implement estimate table row count by meta table

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This commit is contained in:
wangt1xiuyi
2023-02-24 16:02:17 +00:00
committed by ob-robot
parent 780b56301a
commit f872513c5f
14 changed files with 420 additions and 68 deletions
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63
src/sql/ob_sql_utils.cpp
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@ -2618,7 +2618,7 @@ int ObSQLUtils::revise_hash_part_object(common::ObObj &obj,
* 4. other
*/
int ObSQLUtils::choose_best_replica_for_estimation(
const ObCandiTabletLocIArray &part_loc_info_array,
const ObCandiTabletLoc &phy_part_loc_info,
const ObAddr &local_addr,
const common::ObIArray<ObAddr> &addrs_list,
const bool no_use_remote,
@ -2626,42 +2626,37 @@ int ObSQLUtils::choose_best_replica_for_estimation(
{
int ret = OB_SUCCESS;
best_partition.reset();
if (OB_UNLIKELY(1 != part_loc_info_array.count())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("partition array count should be 1", K(ret), K(part_loc_info_array.count()));
} else {
const ObIArray<ObRoutePolicy::CandidateReplica> &replica_loc_array =
part_loc_info_array.at(0).get_partition_location().get_replica_locations();
bool found = false;
// 2. check whether best partition can find in local
for (int64_t i = -1; !found && i < addrs_list.count(); ++i) {
const ObAddr &addr = (i == -1? local_addr : addrs_list.at(i));
for (int64_t j = 0; !found && j < replica_loc_array.count(); ++j) {
if (addr == replica_loc_array.at(j).get_server() &&
0 != replica_loc_array.at(j).get_property().get_memstore_percent()) {
found = true;
best_partition.set(addr,
part_loc_info_array.at(0).get_partition_location().get_tablet_id(),
part_loc_info_array.at(0).get_partition_location().get_ls_id());
}
const ObIArray<ObRoutePolicy::CandidateReplica> &replica_loc_array =
phy_part_loc_info.get_partition_location().get_replica_locations();
bool found = false;
// 2. check whether best partition can find in local
for (int64_t i = -1; !found && i < addrs_list.count(); ++i) {
const ObAddr &addr = (i == -1? local_addr : addrs_list.at(i));
for (int64_t j = 0; !found && j < replica_loc_array.count(); ++j) {
if (addr == replica_loc_array.at(j).get_server() &&
0 != replica_loc_array.at(j).get_property().get_memstore_percent()) {
found = true;
best_partition.set(addr,
phy_part_loc_info.get_partition_location().get_tablet_id(),
phy_part_loc_info.get_partition_location().get_ls_id());
}
}
if (!found && !no_use_remote) {
// best partition not find in local
ObAddr remote_addr;
if (OB_FAIL(choose_best_partition_replica_addr(local_addr,
part_loc_info_array.at(0),
false,
remote_addr))) {
LOG_WARN("failed to get best partition replica addr", K(ret));
// choose partition replica failed doesn't affect execution, we will decide whether use
// storage estimation interface by (!use_local && remote_addr.is_valid()).
ret = OB_SUCCESS;
}
best_partition.set(remote_addr,
part_loc_info_array.at(0).get_partition_location().get_tablet_id(),
part_loc_info_array.at(0).get_partition_location().get_ls_id());
}
if (!found && !no_use_remote) {
// best partition not find in local
ObAddr remote_addr;
if (OB_FAIL(choose_best_partition_replica_addr(local_addr,
phy_part_loc_info,
false,
remote_addr))) {
LOG_WARN("failed to get best partition replica addr", K(ret));
// choose partition replica failed doesn't affect execution, we will decide whether use
// storage estimation interface by (!use_local && remote_addr.is_valid()).
ret = OB_SUCCESS;
}
best_partition.set(remote_addr,
phy_part_loc_info.get_partition_location().get_tablet_id(),
phy_part_loc_info.get_partition_location().get_ls_id());
}
return ret;
}