mirror of
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333 lines
11 KiB
Plaintext
333 lines
11 KiB
Plaintext
--source include/not_embedded.inc
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--source include/have_sequence.inc
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--echo #enable optimizer_record_context
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--disable_replay testfile Don't replay a replay test
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set optimizer_record_context=ON;
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set @saved_opt_context_var_name_1= 'saved_opt_context_1';
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set @saved_opt_context_var_name_2= 'saved_opt_context_2';
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set @opt_context_var_name= 'opt_context';
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create database db1;
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use db1;
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create table t1
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(
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a int, b int,
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index t1_idx_a (a),
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index t1_idx_b (b),
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index t1_idx_ab (a, b)
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) ENGINE=MyISAM;
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insert into t1 select seq%5, seq%8 from seq_1_to_20;
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set session use_stat_tables='COMPLEMENTARY';
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analyze table t1 persistent for all;
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--echo #
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--echo # simple query after analyzing the table
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--echo # planner should pick the analyzed table stats
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--echo #
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select * from t1 where a < 3 and b > 6;
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--source include/opt_context_list_tables_and_ranges.inc
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set @saved_opt_context_1=@opt_context;
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set @saved_table_contexts= @table_contexts;
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set @saved_list_ranges_1=@list_ranges;
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--echo #
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--echo # load stats in JSON format into variable optimizer_replay_context
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--echo # and rerun the query.
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--echo # These loaded stats are same as the analyzed stats
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--echo #
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set optimizer_replay_context=@saved_opt_context_var_name_1;
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select * from t1 where a < 3 and b > 6;
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--source include/opt_context_save_in_var.inc
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select JSON_EQUALS(@saved_opt_context_1, @opt_context);
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--echo #
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--echo # set the variable optimizer_replay_context to blank data
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--echo # and rerun the query.
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--echo # Analyzed table stats should be used for query planning
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--echo #
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set optimizer_replay_context="";
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select * from t1 where a < 3 and b > 6;
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--source include/opt_context_save_in_var.inc
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select JSON_EQUALS(@saved_opt_context_1, @opt_context);
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--echo #
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--echo # now update the table without running analyze table, and then rerun the queries
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--echo #
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insert into t1 select seq%5, seq%8 from seq_1_to_20;
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--echo #
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--echo # Only range stats are different, as the table wasn't re-analyzed
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--echo #
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select * from t1 where a < 3 and b > 6;
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--source include/opt_context_save_in_var.inc
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select JSON_EQUALS(@saved_opt_context_1, @opt_context);
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set @list_ranges= (select JSON_DETAILED(
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JSON_EXTRACT(@opt_context,
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'$**.multi_range_read_info_const_calls')));
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set @saved_list_ranges_2 = @list_ranges;
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select JSON_EQUALS(@saved_list_ranges_2, @saved_list_ranges_1);
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select * from json_table(
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@list_ranges,
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'$[*][*]' columns(
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index_name text path '$.index_name',
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ranges json path '$.ranges',
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num_rows int path '$.num_rows',
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max_index_blocks int path '$.max_index_blocks',
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max_row_blocks int path '$.max_row_blocks'
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)
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) as jt;
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--echo #
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--echo # Now, load stats in JSON format into variable optimizer_replay_context
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--echo # and rerun the query.
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--echo # Loaded stats (including range stats) should be picked by the planner
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--echo #
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set optimizer_replay_context=@saved_opt_context_var_name_1;
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select * from t1 where a < 3 and b > 6;
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--source include/opt_context_save_in_var.inc
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select JSON_EQUALS(@saved_opt_context_1, @opt_context);
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--echo #
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--echo # with optimizer_record_context OFF,
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--echo # nothing gets printed to the trace
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--echo #
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set optimizer_record_context=OFF;
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select * from t1 where a < 3 and b > 6;
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--source include/opt_context_save_in_var.inc
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select @opt_context;
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--echo #
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--echo # Now, after re-enabling optimizer_record_context,
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--echo # Loaded stats should be picked by the planner instead of the analyzed table stats,
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--echo # as the optimizer_replay_context is still set to a valid json containing other stats
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--echo #
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set optimizer_record_context=ON;
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select * from t1 where a < 3 and b > 6;
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--source include/opt_context_save_in_var.inc
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select JSON_EQUALS(@saved_opt_context_1, @opt_context);
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--echo #
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--echo # Now, set the variable optimizer_replay_context to blank data
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--echo # and rerun the query.
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--echo # Analyzed stats with updated range stats should be picked by the planner
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--echo #
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set optimizer_replay_context="";
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select * from t1 where a < 3 and b > 6;
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--source include/opt_context_save_in_var.inc
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select JSON_EQUALS(@saved_opt_context_1, @opt_context);
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set @list_ranges= (select JSON_DETAILED(
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JSON_EXTRACT(@opt_context,
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'$**.multi_range_read_info_const_calls')));
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select JSON_EQUALS(@saved_list_ranges_2, @list_ranges);
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--echo #
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--echo # now re-analyze the table, and then rerun the queries
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--echo #
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analyze table t1 persistent for all;
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--echo #
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--echo # All the stats are updated as the table is re-analyzed
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--echo #
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select * from t1 where a < 3 and b > 6;
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--source include/opt_context_save_in_var.inc
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set @list_ranges= (select JSON_DETAILED(JSON_EXTRACT(@opt_context, '$**.multi_range_read_info_const_calls')));
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select JSON_EQUALS(@saved_list_ranges_2, @list_ranges);
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set @saved_opt_context_2 = @opt_context;
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--echo #
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--echo # Now, load stats in JSON format into variable optimizer_replay_context
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--echo # and rerun the query.
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--echo # Loaded stats (including range stats) should be picked by the planner
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--echo #
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set optimizer_replay_context=@saved_opt_context_var_name_1;
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select * from t1 where a < 3 and b > 6;
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--source include/opt_context_save_in_var.inc
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select JSON_EQUALS(@saved_opt_context_1, @opt_context);
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--echo #
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--echo # Now, set the variable optimizer_replay_context to blank data
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--echo # and rerun the query.
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--echo # All the re-analyzed stats should be picked by the planner
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--echo #
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set optimizer_replay_context="";
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select * from t1 where a < 3 and b > 6;
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--source include/opt_context_save_in_var.inc
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select JSON_EQUALS(@saved_opt_context_2, @opt_context);
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--echo #
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--echo # The following tests check how Optimzer Context Parser reacts
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--echo # to JSON elements missing in the optimizer_replay_context variable
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--echo #
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set optimizer_replay_context=@opt_context_var_name;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].name');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].ddl');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].file_stat_records');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].indexes[0].index_name');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].indexes[0].rec_per_key');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].multi_range_read_info_const_calls[0].index_name');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].multi_range_read_info_const_calls[0].ranges');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].multi_range_read_info_const_calls[0].num_rows');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].multi_range_read_info_const_calls[0].cost');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].multi_range_read_info_const_calls[0].max_index_blocks');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].multi_range_read_info_const_calls[0].max_row_blocks');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].multi_range_read_info_const_calls[0].call_number');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].indexes[0]');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].multi_range_read_info_const_calls[0]');
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select * from t1 where a > 10;
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set character_set_results=utf8mb4;
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set lc_messages=hi_IN;
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set @opt_context=json_replace(@saved_opt_context_1, '$.tables[0].name', 'db2.t1');
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select * from t1 where a > 10;
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set lc_messages=default;
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set character_set_results=default;
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set optimizer_replay_context="";
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explain select tt1.a, tt2.b from t1 tt1, t1 tt2 where tt1.a = tt2.a;
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--source include/opt_context_save_in_var.inc
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set @saved_opt_context_1= @opt_context;
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set optimizer_replay_context=@opt_context_var_name;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].cost_for_index_read_calls[0].index_name');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].cost_for_index_read_calls[0].num_records');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].cost_for_index_read_calls[0].eq_ref');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].cost_for_index_read_calls[0].index_cost_io');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].cost_for_index_read_calls[0].index_cost_cpu');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].cost_for_index_read_calls[0].row_cost_io');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].cost_for_index_read_calls[0].row_cost_cpu');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].cost_for_index_read_calls[0].max_index_blocks');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].cost_for_index_read_calls[0].max_row_blocks');
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select * from t1 where a > 10;
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set @opt_context=json_remove(@saved_opt_context_1, '$.tables[0].cost_for_index_read_calls[0].copy_cost');
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select * from t1 where a > 10;
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drop table t1;
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drop database db1;
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use test;
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--echo #
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--echo # MDEV-41541 uninitialized memory read in optimizer replay
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--echo #
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create table t1 (a int, b int, index t1_idx_ab (a, b));
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insert into t1 select seq%5, seq%8 from seq_1_to_20;
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set session use_stat_tables='complementary';
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analyze table t1 persistent for all;
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select a+1, b+1 from t1 limit 5;
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select * from t1 where a<2 and b>4;
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set optimizer_record_context=ON;
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select * from t1 where a<3 and b>6;
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--source include/opt_context_save_in_var.inc
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set @opt_context_truncated= json_remove(@opt_context, '$.tables[0].indexes[0].rec_per_key[1]');
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set optimizer_replay_context='opt_context_truncated';
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select * from t1 where a<3 and b>6;
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--source include/opt_context_save_in_var.inc
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select hex(json_extract(@opt_context, '$.tables[0].indexes[0].rec_per_key[1]') + 0.0);
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drop table t1;
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--echo #
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--echo # Replay mismatch warnings print numbers as text
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--echo #
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set optimizer_replay_context='';
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create table t1 (a int, b int, key(a));
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insert into t1 select seq%10, seq from seq_1_to_100;
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explain select t1.b from t1, t1 t2 where t1.a = t2.a;
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--source include/opt_context_save_in_var.inc
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set @opt_context_mismatch= json_remove(@opt_context,
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'$.tables[0].cost_for_index_read_calls');
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set optimizer_replay_context='opt_context_mismatch';
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explain select t1.b from t1, t1 t2 where t1.a = t2.a;
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set optimizer_replay_context='';
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drop table t1;
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--echo # End of 13.1 tests
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