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mariadb-columnstore-engine/dbcon/mysql/ha_mcs_sysvars.h
Roman Nozdrin 2c63258537 MCOL-2178 SH now allows to fallback to other pushdown handlers.
SH query execution migrated from SH::init() into create_SH().
There is a session variable columnstore_processing_handlers_fallback
that allows to fallback to DH, GBH if SH fails. DH now uses semantic
tree check for unsupported features to allow to fallback to GBH or
storage API.

Fixes GBH related bug when create_GBH() returns a handler for
queries with impossible WHERE/HAVING.

Fixed bug in FromSubquery::transform() where isUnion is set to true.

Enabled RTTI b/c server team enabled it for MDB.

Removed unused code supposed to be used with vtable.
2019-08-25 04:05:59 +03:00

104 lines
3.2 KiB
C

/* Copyright (C) 2014 InfiniDB, Inc.
Copyright (C) 2016 MariaDB Corporation
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; version 2 of
the License.
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
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA. */
#ifndef MCS_SYSVARS_H__
#define MCS_SYSVARS_H__
#include <my_config.h>
#include "idb_mysql.h"
extern st_mysql_sys_var* mcs_system_variables[];
// compression_type
enum mcs_compression_type_t {
NO_COMPRESSION = 0,
SNAPPY = 2
};
// simple setters/getters
const char* get_original_query(THD* thd);
void set_original_query(THD* thd, char* query);
mcs_compression_type_t get_compression_type(THD* thd);
void set_compression_type(THD* thd, ulong value);
void* get_fe_conn_info_ptr(THD* thd = NULL);
void set_fe_conn_info_ptr(void* ptr, THD* thd = NULL);
ulonglong get_original_optimizer_flags(THD* thd = NULL);
void set_original_optimizer_flags(ulonglong ptr, THD* thd = NULL);
bool get_select_handler(THD* thd);
void set_select_handler(THD* thd, bool value);
bool get_derived_handler(THD* thd);
void set_derived_handler(THD* thd, bool value);
bool get_group_by_handler(THD* thd);
void set_group_by_handler(THD* thd, bool value);
bool get_fallback_knob(THD* thd);
void set_fallback_knob(THD* thd, bool value);
bool get_use_decimal_scale(THD* thd);
void set_use_decimal_scale(THD* thd, bool value);
ulong get_decimal_scale(THD* thd);
void set_decimal_scale(THD* thd, ulong value);
bool get_ordered_only(THD* thd);
void set_ordered_only(THD* thd, bool value);
ulong get_string_scan_threshold(THD* thd);
void set_string_scan_threshold(THD* thd, ulong value);
ulong get_stringtable_threshold(THD* thd);
void set_stringtable_threshold(THD* thd, ulong value);
ulong get_diskjoin_smallsidelimit(THD* thd);
void set_diskjoin_smallsidelimit(THD* thd, ulong value);
ulong get_diskjoin_largesidelimit(THD* thd);
void set_diskjoin_largesidelimit(THD* thd, ulong value);
ulong get_diskjoin_bucketsize(THD* thd);
void set_diskjoin_bucketsize(THD* thd, ulong value);
ulong get_um_mem_limit(THD* thd);
void set_um_mem_limit(THD* thd, ulong value);
bool get_varbin_always_hex(THD* thd);
void set_varbin_always_hex(THD* thd, bool value);
bool get_double_for_decimal_math(THD* thd);
void set_double_for_decimal_math(THD* thd, bool value);
ulong get_local_query(THD* thd);
void set_local_query(THD* thd, ulong value);
bool get_use_import_for_batchinsert(THD* thd);
void set_use_import_for_batchinsert(THD* thd, bool value);
ulong get_import_for_batchinsert_delimiter(THD* thd);
void set_import_for_batchinsert_delimiter(THD* thd, ulong value);
ulong get_import_for_batchinsert_enclosed_by(THD* thd);
void set_import_for_batchinsert_enclosed_by(THD* thd, ulong value);
#endif