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fix some outline/hint bugs

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This commit is contained in:
chimyue
2023-12-27 03:13:13 +00:00
committed by ob-robot
parent 0afc9b886e
commit 2c9d21b7d9
46 changed files with 1370 additions and 638 deletions
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34
src/sql/optimizer/ob_join_order.cpp
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@ -7636,10 +7636,6 @@ int ObJoinOrder::generate_base_table_paths(PathHelper &helper)
LOG_WARN("failed to calc table location", K(ret));
} else if (OB_FAIL(estimate_size_for_base_table(helper, access_paths))) {
LOG_WARN("failed to estimate_size", K(ret));
} else if (!helper.is_inner_path_ && !is_virtual_table(ref_table_id)
&& EXTERNAL_TABLE != table_meta_info_.table_type_
&& OB_FAIL(compute_one_row_info_for_table_scan(access_paths))) {
LOG_WARN("failed to compute one row info", K(ret));
} else if (OB_FAIL(pruning_unstable_access_path(helper.table_opt_info_, access_paths))) {
LOG_WARN("failed to pruning unstable access path", K(ret));
} else if (OB_FAIL(get_plan()->select_location(tbl_part_infos))) {
@ -7677,6 +7673,12 @@ int ObJoinOrder::compute_base_table_property(uint64_t table_id,
ref_table_id,
get_restrict_infos()))) {
LOG_WARN("failed to extract fd item set", K(ret));
} else if (OB_FAIL(ObOptimizerUtil::is_exprs_unique(get_output_const_exprs(),
get_fd_item_set(),
get_output_equal_sets(),
get_output_const_exprs(),
is_at_most_one_row_))) {
LOG_WARN("failed to compute at most one row", K(ret));
} else if (OB_FAIL(compute_table_location(table_id,
ref_table_id,
false,
@ -13170,30 +13172,6 @@ int ObJoinOrder::compute_fd_item_set_for_subquery(const uint64_t table_id,
return ret;
}
int ObJoinOrder::compute_one_row_info_for_table_scan(ObIArray<AccessPath *> &access_paths)
{
int ret = OB_SUCCESS;
AccessPath *access_path = NULL;
is_at_most_one_row_ = false;
for (int64_t i = 0; OB_SUCC(ret) && !is_at_most_one_row_ && i < access_paths.count(); i++) {
bool is_one_row = false;
if (OB_ISNULL(access_path = access_paths.at(i)) ||
OB_ISNULL(access_path->pre_query_range_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret));
} else if (access_path->is_inner_path_) {
/*do nothing*/
} else if (OB_FAIL(access_path->pre_query_range_->is_at_most_one_row(is_one_row))) {
LOG_WARN("failed to check if is at most one row", K(ret));
} else if (is_one_row && (1 == access_path->est_cost_info_.ranges_.count())) {
is_at_most_one_row_ = true;
} else { /*do nothing*/ }
}
LOG_TRACE("succeed to compute one row info for table scan", K(is_at_most_one_row_),
K(table_id_));
return ret;
}
int ObJoinOrder::compute_one_row_info_for_join(const ObJoinOrder *left_tree,
const ObJoinOrder *right_tree,
const ObIArray<ObRawExpr*> &join_condition,