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author | Svilen Mihaylov <svilen.mihaylov@mongodb.com> | 2022-07-08 07:59:17 +0000 |
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committer | Evergreen Agent <no-reply@evergreen.mongodb.com> | 2022-07-08 08:49:53 +0000 |
commit | 568fa8a001eb42e07214acf33fab48e9ad31ca98 (patch) | |
tree | 1916a4c007d5f5598584d7fd11e98583bdac54a4 /src/mongo/db/query/ce_mode_parameter.h | |
parent | ce0ac09cdb8f38148cffc5860e142e5073f66472 (diff) | |
download | mongo-568fa8a001eb42e07214acf33fab48e9ad31ca98.tar.gz |
SERVER-66957 Integrate CE prototype
Diffstat (limited to 'src/mongo/db/query/ce_mode_parameter.h')
-rw-r--r-- | src/mongo/db/query/ce_mode_parameter.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/mongo/db/query/ce_mode_parameter.h b/src/mongo/db/query/ce_mode_parameter.h new file mode 100644 index 00000000000..b267067747f --- /dev/null +++ b/src/mongo/db/query/ce_mode_parameter.h @@ -0,0 +1,47 @@ +/** + * Copyright (C) 2022-present MongoDB, Inc. + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the Server Side Public License, version 1, + * as published by MongoDB, Inc. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * Server Side Public License for more details. + * + * You should have received a copy of the Server Side Public License + * along with this program. If not, see + * <http://www.mongodb.com/licensing/server-side-public-license>. + * + * As a special exception, the copyright holders give permission to link the + * code of portions of this program with the OpenSSL library under certain + * conditions as described in each individual source file and distribute + * linked combinations including the program with the OpenSSL library. You + * must comply with the Server Side Public License in all respects for + * all of the code used other than as permitted herein. If you modify file(s) + * with this exception, you may extend this exception to your version of the + * file(s), but you are not obligated to do so. If you do not wish to do so, + * delete this exception statement from your version. If you delete this + * exception statement from all source files in the program, then also delete + * it in the license file. + */ + +#pragma once + +#include <string> + +#include "mongo/base/status.h" + +namespace mongo::ce { + +/** + * Defines cardinality estimation modes. + */ +const std::string kHeuristic = "heuristic"; +const std::string kHistogram = "histogram"; +const std::string kSampling = "sampling"; + +Status validateCEMode(const std::string& value); + +} // namespace mongo::ce |