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add limit to solve slow compute_fd_item

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This commit is contained in:
akaError
2023-09-20 15:01:11 +00:00
committed by ob-robot
parent 9e7c29c68b
commit 8b4f1665de
7 changed files with 56 additions and 34 deletions
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5
src/sql/optimizer/ob_log_distinct.cpp
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@ -23,6 +23,7 @@
#include "ob_optimizer_util.h"
#include "ob_opt_selectivity.h"
#include "common/ob_smart_call.h"
#include "sql/rewrite/ob_transform_utils.h"
using namespace oceanbase;
using namespace sql;
@ -250,7 +251,9 @@ int ObLogDistinct::compute_fd_item_set()
LOG_WARN("failed to create fd item set", K(ret));
} else if (OB_FAIL(fd_item_set->assign(child->get_fd_item_set()))) {
LOG_WARN("failed to assign fd item set", K(ret));
} else if (OB_FAIL(my_plan_->get_fd_item_factory().create_table_fd_item(fd_item,
} else if (!ObTransformUtils::need_compute_fd_item_set(distinct_exprs_)) {
//do nothing
}else if (OB_FAIL(my_plan_->get_fd_item_factory().create_table_fd_item(fd_item,
true,
distinct_exprs_,
get_table_set()))) {