mirror of
https://github.com/MariaDB/server.git
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5e36f5dd00
Changed the function append_range_all_keyparts to use sel_arg_range_seq_init / sel_arg_range_seq_next to produce ranges.
Also adjusted to print format for the ranges, now the ranges are printed as:
(keypart1_min, keypart2_min,..) OP (keypart1_name,keypart2_name, ..) OP (keypart1_max,keypart2_max, ..)
Also added more tests for range and index merge access for optimizer trace
133 lines
3.9 KiB
Text
133 lines
3.9 KiB
Text
--source include/not_embedded.inc
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set @tmp_opt_switch= @@optimizer_switch;
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set optimizer_switch='index_merge_sort_intersection=on';
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set optimizer_trace='enabled=on';
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create table t0 (a int);
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insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t1 (a int, b int, c int, filler char(100),
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key(a), key(b), key(c));
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insert into t1 select
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A.a * B.a*10 + C.a*100,
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A.a * B.a*10 + C.a*100,
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A.a,
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'filler'
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from t0 A, t0 B, t0 C;
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--echo This should use union:
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explain select * from t1 where a=1 or b=1;
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select * from information_schema.OPTIMIZER_TRACE;
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drop table t0,t1;
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set optimizer_trace="enabled=off";
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set @@optimizer_switch= @tmp_opt_switch;
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--echo # More tests added index_merge access
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--enable_warnings
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create table t1
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(
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/* Field names reflect value(rowid) distribution, st=STairs, swt= SaWTooth */
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st_a int not null default 0,
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swt1a int not null default 0,
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swt2a int not null default 0,
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st_b int not null default 0,
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swt1b int not null default 0,
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swt2b int not null default 0,
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/* fields/keys for row retrieval tests */
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key1 int,
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key2 int,
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key3 int,
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key4 int,
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/* make rows much bigger then keys */
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filler1 char (200),
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filler2 char (200),
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filler3 char (200),
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filler4 char (200),
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filler5 char (200),
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filler6 char (200),
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/* order of keys is important */
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key sta_swt12a(st_a,swt1a,swt2a),
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key sta_swt1a(st_a,swt1a),
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key sta_swt2a(st_a,swt2a),
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key sta_swt21a(st_a,swt2a,swt1a),
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key st_a(st_a),
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key stb_swt1a_2b(st_b,swt1b,swt2a),
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key stb_swt1b(st_b,swt1b),
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key st_b(st_b),
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key(key1),
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key(key2),
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key(key3),
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key(key4)
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) ;
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# Fill table
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create table t0 as select * from t1;
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--disable_query_log
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--echo # Printing of many insert into t0 values (....) disabled.
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let $cnt=1000;
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while ($cnt)
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{
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eval insert into t0 values (1, 2, 3, 1, 2, 3, 0, 0, 0, 0, 'data1', 'data2', 'data3', 'data4', 'data5', 'data6');
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dec $cnt;
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}
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--enable_query_log
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alter table t1 disable keys;
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--disable_query_log
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--echo # Printing of many insert into t1 select .... from t0 disabled.
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let $1=4;
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while ($1)
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{
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let $2=4;
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while ($2)
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{
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let $3=4;
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while ($3)
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{
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eval insert into t1 select $1, $2, $3, $1 ,$2, $3, key1, key2, key3, key4, filler1, filler2, filler3, filler4, filler5, filler6 from t0;
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dec $3;
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}
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dec $2;
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}
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dec $1;
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}
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--echo # Printing of many insert into t1 (...) values (....) disabled.
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# Row retrieval tests
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# -1 is used for values 'out of any range we are using'
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# insert enough rows for index intersection to be used for (key1,key2)
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insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, 100, 100,'key1-key2-key3-key4');
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let $cnt=400;
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while ($cnt)
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{
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eval insert into t1 (key1, key2, key3, key4, filler1) values (100, -1, 100, -1,'key1-key3');
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dec $cnt;
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}
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let $cnt=400;
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while ($cnt)
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{
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eval insert into t1 (key1, key2, key3, key4, filler1) values (-1, 100, -1, 100,'key2-key4');
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dec $cnt;
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}
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--enable_query_log
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alter table t1 enable keys;
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insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, -1, -1, 'key1-key2');
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insert into t1 (key1, key2, key3, key4, filler1) values (-1, -1, 100, 100, 'key4-key3');
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set optimizer_trace='enabled=on';
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--echo # 3-way ROR-intersection
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explain select key1,key2,key3 from t1 where key1=100 and key2=100 and key3=100;
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select JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives')) from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
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select JSON_DETAILED(JSON_EXTRACT(trace, '$**.chosen_range_access_summary')) from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
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--echo # ROR-union(ROR-intersection, ROR-range)
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explain select key1,key2,key3,key4 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
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select JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives')) from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
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select JSON_DETAILED(JSON_EXTRACT(trace, '$**.chosen_range_access_summary')) from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
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drop table t0,t1;
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set optimizer_trace="enabled=off";
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