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3fabf01e93
Disabled 4th if block in buildOuterJoin to handle non-optimized MDB query
structures.
Broke getSelectPlan into pieces: processFrom, processWhere.
MCOL-3593 UNION processing depends on two flags isUnion that comes as
arg of getSelectPlan and unionSel that is a local variable in
getSelectPlan. Modularization of getSelectPlan broke the mechanizm.
This patch is supposed to partially fix it.
MCOL-3593 Removed unused if condition from buildOuterJoin that allows
unsupported construct subquery in ON expression.
Fixed an improper if condition that ignors tableMap entries w/o condition
in external_lock thus external_lock doesn't clean up when the query
finishes.
Fixed wrong logging for queries processed in tableMode. Now rnd_init
properly sends queryText down to ExeMgr to be logged.
MCOL-3593 Unused attribute FromSubQuery::fFromSub was removed.
getSelectPlan has been modularized into: setExecutionParams,
processFrom, processWhere. SELECT, HAVING, GROUP BY, ORDER BY
still lives in getSelectPlan.
Copied optimization function simplify_joins_ into our pushdown
code to provide the plugin code with some rewrites from MDB it
expects.
The columnstore_processing_handlers_fallback session variable
has been removed thus CS can't fallback from SH to partial
execution paths, e.g. DH, GBH or plugin API.
MCOL-3602 Moved MDB optimizer rewrites into a separate file.
Add SELECT_LEX::optimize_unflattened_subqueries() call to fix IN
into EXISTS rewrite for semi-JOINs with subqueries.
disable_indices_for_CEJ() add index related hints to disable
index access methods in Cross Engine Joins.
create_SH() now flattens JOIN that has both physical tables and
views. This fixes most of views related tests in the regression.
110 lines
3.4 KiB
C
110 lines
3.4 KiB
C
/* Copyright (C) 2014 InfiniDB, Inc.
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Copyright (C) 2016 MariaDB Corporation
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#ifndef MCS_SYSVARS_H__
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#define MCS_SYSVARS_H__
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#include <my_config.h>
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#include "idb_mysql.h"
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extern st_mysql_sys_var* mcs_system_variables[];
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extern st_mysql_show_var mcs_status_variables[];
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extern char cs_version[];
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extern char cs_commit_hash[];
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// compression_type
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enum mcs_compression_type_t {
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NO_COMPRESSION = 0,
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SNAPPY = 2
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};
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// simple setters/getters
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const char* get_original_query(THD* thd);
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void set_original_query(THD* thd, char* query);
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mcs_compression_type_t get_compression_type(THD* thd);
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void set_compression_type(THD* thd, ulong value);
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void* get_fe_conn_info_ptr(THD* thd = NULL);
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void set_fe_conn_info_ptr(void* ptr, THD* thd = NULL);
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ulonglong get_original_optimizer_flags(THD* thd = NULL);
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void set_original_optimizer_flags(ulonglong ptr, THD* thd = NULL);
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bool get_select_handler(THD* thd);
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void set_select_handler(THD* thd, bool value);
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bool get_derived_handler(THD* thd);
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void set_derived_handler(THD* thd, bool value);
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bool get_group_by_handler(THD* thd);
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void set_group_by_handler(THD* thd, bool value);
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uint get_orderby_threads(THD* thd);
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void set_orderby_threads(THD* thd, uint value);
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bool get_use_decimal_scale(THD* thd);
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void set_use_decimal_scale(THD* thd, bool value);
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ulong get_decimal_scale(THD* thd);
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void set_decimal_scale(THD* thd, ulong value);
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bool get_ordered_only(THD* thd);
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void set_ordered_only(THD* thd, bool value);
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ulong get_string_scan_threshold(THD* thd);
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void set_string_scan_threshold(THD* thd, ulong value);
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ulong get_stringtable_threshold(THD* thd);
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void set_stringtable_threshold(THD* thd, ulong value);
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ulong get_diskjoin_smallsidelimit(THD* thd);
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void set_diskjoin_smallsidelimit(THD* thd, ulong value);
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ulong get_diskjoin_largesidelimit(THD* thd);
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void set_diskjoin_largesidelimit(THD* thd, ulong value);
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ulong get_diskjoin_bucketsize(THD* thd);
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void set_diskjoin_bucketsize(THD* thd, ulong value);
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ulong get_um_mem_limit(THD* thd);
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void set_um_mem_limit(THD* thd, ulong value);
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bool get_varbin_always_hex(THD* thd);
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void set_varbin_always_hex(THD* thd, bool value);
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bool get_double_for_decimal_math(THD* thd);
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void set_double_for_decimal_math(THD* thd, bool value);
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ulong get_local_query(THD* thd);
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void set_local_query(THD* thd, ulong value);
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bool get_use_import_for_batchinsert(THD* thd);
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void set_use_import_for_batchinsert(THD* thd, bool value);
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ulong get_import_for_batchinsert_delimiter(THD* thd);
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void set_import_for_batchinsert_delimiter(THD* thd, ulong value);
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ulong get_import_for_batchinsert_enclosed_by(THD* thd);
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void set_import_for_batchinsert_enclosed_by(THD* thd, ulong value);
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bool get_replication_slave(THD* thd);
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void set_replication_slave(THD* thd, bool value);
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#endif
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