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57 lines
1.7 KiB
C++
57 lines
1.7 KiB
C++
/* -*- c-basic-offset: 2 -*- */
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/*
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Copyright(C) 2016 Kouhei Sutou <kou@clear-code.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA
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*/
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#ifndef MRN_COUNT_SKIP_CHECKER_HPP_
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#define MRN_COUNT_SKIP_CHECKER_HPP_
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#include <mrn_mysql_compat.h>
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#include <item_cmpfunc.h>
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#include <groonga.h>
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namespace mrn {
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class CountSkipChecker {
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public:
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CountSkipChecker(grn_ctx *ctx,
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TABLE *table,
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SELECT_LEX *select_lex,
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KEY *key_info,
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key_part_map target_key_part_map,
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bool is_storage_mode);
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~CountSkipChecker();
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bool check();
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private:
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grn_ctx *ctx_;
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TABLE *table_;
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SELECT_LEX *select_lex_;
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KEY *key_info_;
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key_part_map target_key_part_map_;
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bool is_storage_mode_;
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bool is_skippable(Item *where);
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bool is_skippable(Item_cond *cond_item);
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bool is_skippable(Item_func *func_item);
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bool is_skippable(Item_field *field_item);
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};
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}
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#endif /* MRN_COUNT_SKIP_CHECKER_HPP_ */
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