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/*
Copyright(C) 2019-2021 Sutou Kouhei <kou@clear-code.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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 GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include "grn_window_function.h"
#ifdef __cplusplus
extern "C" {
#endif
void
grn_window_function_executor_init_from_env(void);
struct _grn_window_function_executor {
grn_obj tag;
grn_obj tables;
grn_obj is_context_tables;
grn_obj source;
grn_obj sort_keys;
grn_obj group_keys;
grn_obj output_column_name;
struct {
grn_table_sort_key *sort_keys;
size_t n_sort_keys;
grn_table_sort_key *group_keys;
size_t n_group_keys;
grn_table_sort_key *window_sort_keys;
size_t n_window_sort_keys;
grn_obj key_columns;
grn_obj *sorted;
} context;
struct {
size_t n;
grn_obj *previous;
grn_obj *current;
} values;
grn_obj window_function_calls;
grn_obj output_columns;
grn_window window;
};
grn_rc
grn_window_function_executor_init(grn_ctx *ctx,
grn_window_function_executor *executor);
grn_rc
grn_window_function_executor_fin(grn_ctx *ctx,
grn_window_function_executor *executor);
#ifdef __cplusplus
}
#endif
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