diff options
Diffstat (limited to 'mysql-test/r/query_cache.result.es')
-rw-r--r-- | mysql-test/r/query_cache.result.es | 925 |
1 files changed, 0 insertions, 925 deletions
diff --git a/mysql-test/r/query_cache.result.es b/mysql-test/r/query_cache.result.es deleted file mode 100644 index 7e75a3cee4c..00000000000 --- a/mysql-test/r/query_cache.result.es +++ /dev/null @@ -1,925 +0,0 @@ -set GLOBAL query_cache_size=1355776; -flush query cache; -flush query cache; -reset query cache; -flush status; -drop table if exists t1,t2,t3,t4,t11,t21; -drop database if exists mysqltest; -create table t1 (a int not null); -insert into t1 values (1),(2),(3); -select * from t1; -a -1 -2 -3 -select * from t1; -a -1 -2 -3 -select sql_no_cache * from t1; -a -1 -2 -3 -select length(now()) from t1; -length(now()) -19 -19 -19 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 1 -show status like "Qcache_inserts"; -Variable_name Value -Qcache_inserts 1 -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 1 -drop table t1; -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -create table t1 (a int not null); -insert into t1 values (1),(2),(3); -create table t2 (a int not null); -insert into t2 values (4),(5),(6); -create table t3 (a int not null) engine=MERGE UNION=(t1,t2) INSERT_METHOD=FIRST; -select * from t3; -a -1 -2 -3 -4 -5 -6 -select * from t3; -a -1 -2 -3 -4 -5 -6 -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 2 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 1 -insert into t2 values (7); -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -select * from t1; -a -1 -2 -3 -select * from t1; -a -1 -2 -3 -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 3 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 1 -insert into t3 values (8); -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -select * from t3; -a -1 -2 -3 -8 -4 -5 -6 -7 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 1 -update t2 set a=9 where a=7; -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -select * from t1; -a -1 -2 -3 -8 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 1 -update t3 set a=10 where a=1; -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -select * from t3; -a -10 -2 -3 -8 -4 -5 -6 -9 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 1 -delete from t2 where a=9; -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -select * from t1; -a -10 -2 -3 -8 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 1 -delete from t3 where a=10; -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -drop table t1, t2, t3; -create table t1 (a int not null); -insert into t1 values (1),(2),(3); -create table t2 (a int not null); -insert into t2 values (1),(2),(3); -select * from t1; -a -1 -2 -3 -select * from t2; -a -1 -2 -3 -insert into t1 values (4); -show status like "Qcache_free_blocks"; -Variable_name Value -Qcache_free_blocks 2 -flush query cache; -show status like "Qcache_free_blocks"; -Variable_name Value -Qcache_free_blocks 1 -drop table t1, t2; -create table t1 (a text not null); -create table t11 (a text not null); -create table t2 (a text not null); -create table t21 (a text not null); -create table t3 (a text not null); -insert into t1 values("1111111111111111111111111111111111111111111111111111"); -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t11 select * from t1; -insert into t21 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t3 select * from t1; -insert into t3 select * from t2; -insert into t3 select * from t1; -select * from t11; -select * from t21; -show status like "Qcache_total_blocks"; -Variable_name Value -Qcache_total_blocks 7 -show status like "Qcache_free_blocks"; -Variable_name Value -Qcache_free_blocks 1 -insert into t11 values(""); -select * from t3; -show status like "Qcache_total_blocks"; -Variable_name Value -Qcache_total_blocks 8 -show status like "Qcache_free_blocks"; -Variable_name Value -Qcache_free_blocks 2 -flush query cache; -show status like "Qcache_total_blocks"; -Variable_name Value -Qcache_total_blocks 7 -show status like "Qcache_free_blocks"; -Variable_name Value -Qcache_free_blocks 1 -drop table t1, t2, t3, t11, t21; -set query_cache_type=demand; -create table t1 (a int not null); -insert into t1 values (1),(2),(3); -select * from t1; -a -1 -2 -3 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -select sql_cache * from t1 union select * from t1; -a -1 -2 -3 -set query_cache_type=2; -select sql_cache * from t1 union select * from t1; -a -1 -2 -3 -select * from t1 union select sql_cache * from t1; -a -1 -2 -3 -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 4 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 2 -set query_cache_type=on; -reset query cache; -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -select sql_no_cache * from t1; -a -1 -2 -3 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -drop table t1; -create table t1 (a text not null); -select CONNECTION_ID() from t1; -CONNECTION_ID() -select FOUND_ROWS(); -FOUND_ROWS() -0 -select NOW() from t1; -NOW() -select CURDATE() from t1; -CURDATE() -select CURTIME() from t1; -CURTIME() -select DATABASE() from t1; -DATABASE() -select ENCRYPT("test") from t1; -ENCRYPT("test") -select LAST_INSERT_ID() from t1; -LAST_INSERT_ID() -select RAND() from t1; -RAND() -select UNIX_TIMESTAMP() from t1; -UNIX_TIMESTAMP() -select USER() from t1; -USER() -select benchmark(1,1) from t1; -benchmark(1,1) -explain extended select benchmark(1,1) from t1; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 system NULL NULL NULL NULL 0 const row not found -Warnings: -Note 1003 select sql_no_cache benchmark(1,1) AS `benchmark(1,1)` from test.t1 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -create table t2 (a text not null); -insert into t1 values("1111111111111111111111111111111111111111111111111111"); -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 4 -show status like "Qcache_lowmem_prunes"; -Variable_name Value -Qcache_lowmem_prunes 0 -select a as a1, a as a2 from t1; -select a as a2, a as a3 from t1; -select a as a3, a as a4 from t1; -select a as a1, a as a2 from t1; -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 4 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 2 -show status like "Qcache_lowmem_prunes"; -Variable_name Value -Qcache_lowmem_prunes 2 -reset query cache; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -insert into t2 select * from t1; -insert into t1 select * from t2; -select * from t1; -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -drop table t1,t2; -create database mysqltest; -create table mysqltest.t1 (i int not null auto_increment, a int, primary key (i)); -insert into mysqltest.t1 (a) values (1); -select * from mysqltest.t1 where i is null; -i a -1 1 -create table t1(a int); -select * from t1; -a -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 2 -select * from mysqltest.t1; -i a -1 1 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 3 -drop database mysqltest; -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 1 -drop table t1; -create table t1 (a char(1) not null collate koi8r_general_ci); -insert into t1 values(_koi8r"á"); -set CHARACTER SET koi8r; -select * from t1; -a -á -set CHARACTER SET cp1251_koi8; -select * from t1; -a -À -set CHARACTER SET DEFAULT; -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 2 -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 4 -drop table t1; -create database if not exists mysqltest; -create table mysqltest.t1 (i int not null); -create table t1 (i int not null); -insert into mysqltest.t1 (i) values (1); -insert into t1 (i) values (2); -select * from t1; -i -2 -use mysqltest; -select * from t1; -i -1 -select * from t1; -i -1 -use test; -select * from t1; -i -2 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 2 -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 6 -drop database mysqltest; -drop table t1; -create table t1 (i int not null); -insert into t1 (i) values (1),(2),(3),(4); -select SQL_CALC_FOUND_ROWS * from t1 limit 2; -i -1 -2 -select FOUND_ROWS(); -FOUND_ROWS() -4 -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 6 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 1 -select * from t1 where i=1; -i -1 -select FOUND_ROWS(); -FOUND_ROWS() -1 -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 6 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 2 -select SQL_CALC_FOUND_ROWS * from t1 limit 2; -i -1 -2 -select FOUND_ROWS(); -FOUND_ROWS() -4 -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 7 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 2 -select * from t1 where i=1; -i -1 -select FOUND_ROWS(); -FOUND_ROWS() -1 -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 8 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 2 -drop table t1; -flush query cache; -reset query cache; -create table t1 (a int not null); -insert into t1 values (1),(2),(3); -select * from t1; -a -1 -2 -3 -select * from t1; -a -1 -2 -3 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 1 -insert delayed into t1 values (4); -select a from t1; -a -1 -2 -3 -4 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 1 -drop table t1; -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -show global variables like "query_cache_min_res_unit"; -Variable_name Value -query_cache_min_res_unit 4096 -set GLOBAL query_cache_min_res_unit=1001; -show global variables like "query_cache_min_res_unit"; -Variable_name Value -query_cache_min_res_unit 1008 -create table t1 (a int not null); -insert into t1 values (1),(2),(3); -create table t2 (a int not null); -insert into t2 values (1),(2),(3); -select * from t1; -a -1 -2 -3 -select * from t1; -a -1 -2 -3 -select * from t2; -a -1 -2 -3 -select * from t2; -a -1 -2 -3 -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 11 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 2 -drop table t1; -select a from t2; -a -1 -2 -3 -select a from t2; -a -1 -2 -3 -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 12 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 2 -drop table t2; -set GLOBAL query_cache_min_res_unit=default; -show global variables like "query_cache_min_res_unit"; -Variable_name Value -query_cache_min_res_unit 4096 -create table t1 (a int not null); -insert into t1 values (1); -select "aaa" from t1; -aaa -aaa -select "AAA" from t1; -AAA -AAA -drop table t1; -create table t1 (a int); -set GLOBAL query_cache_size=1000; -show global variables like "query_cache_size"; -Variable_name Value -query_cache_size 0 -select * from t1; -a -set GLOBAL query_cache_size=1024; -Warnings: -Warning 1282 Query cache failed to set size 1024; new query cache size is 0 -show global variables like "query_cache_size"; -Variable_name Value -query_cache_size 0 -select * from t1; -a -set GLOBAL query_cache_size=10240; -Warnings: -Warning 1282 Query cache failed to set size 10240; new query cache size is 0 -show global variables like "query_cache_size"; -Variable_name Value -query_cache_size 0 -select * from t1; -a -set GLOBAL query_cache_size=20480; -Warnings: -Warning 1282 Query cache failed to set size 20480; new query cache size is 0 -show global variables like "query_cache_size"; -Variable_name Value -query_cache_size 0 -select * from t1; -a -set GLOBAL query_cache_size=40960; -Warnings: -Warning 1282 Query cache failed to set size 40960; new query cache size is 0 -show global variables like "query_cache_size"; -Variable_name Value -query_cache_size 0 -select * from t1; -a -set GLOBAL query_cache_size=51200; -show global variables like "query_cache_size"; -Variable_name Value -query_cache_size 51200 -select * from t1; -a -set GLOBAL query_cache_size=61440; -show global variables like "query_cache_size"; -Variable_name Value -query_cache_size 61440 -select * from t1; -a -set GLOBAL query_cache_size=81920; -show global variables like "query_cache_size"; -Variable_name Value -query_cache_size 81920 -select * from t1; -a -set GLOBAL query_cache_size=102400; -show global variables like "query_cache_size"; -Variable_name Value -query_cache_size 102400 -select * from t1; -a -drop table t1; -set GLOBAL query_cache_size=1048576; -create table t1 (i int not null); -create table t2 (i int not null); -select * from t1; -i -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 1 -create temporary table t3 (i int not null); -select * from t2; -i -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 2 -select * from t3; -i -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 2 -update t1 set i=(select distinct 1 from (select * from t2) a); -drop table t1, t2, t3; -use mysql; -select * from db; -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -use test; -select * from mysql.db; -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -create table t1(id int auto_increment primary key); -insert into t1 values (NULL), (NULL), (NULL); -select * from t1 where id=2; -id -2 -alter table t1 rename to t2; -select * from t1 where id=2; -ERROR 42S02: Table 'test.t1' doesn't exist -drop table t2; -select * from t1 where id=2; -ERROR 42S02: Table 'test.t1' doesn't exist -create table t1 (word char(20) not null); -select * from t1; -word -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 1 -load data infile 'TEST_DIR/std_data/words.dat' into table t1; -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -select count(*) from t1; -count(*) -70 -drop table t1; -create table t1 (a int); -insert into t1 values (1),(2),(3); -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -select * from t1 into outfile "query_cache.out.file"; -select * from t1 into outfile "query_cache.out.file"; -ERROR HY000: File 'query_cache.out.file' already exists -select * from t1 limit 1 into dumpfile "query_cache.dump.file"; -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -drop table t1; -create table t1 (a int); -insert into t1 values (1),(2); -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 0 -select * from t1; -a -1 -2 -SET OPTION SQL_SELECT_LIMIT=1; -select * from t1; -a -1 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 2 -SET OPTION SQL_SELECT_LIMIT=DEFAULT; -drop table t1; -flush query cache; -reset query cache; -flush status; -set GLOBAL query_cache_size=1048576; -create table t1 (a int not null); -insert into t1 values (1),(2),(3); -create table t2 (a text not null); -create table t3 (a text not null); -insert into t3 values("1111111111111111111111111111111111111111111111111111"); -insert into t2 select * from t3; -insert into t3 select * from t2; -insert into t2 select * from t3; -insert into t3 select * from t2; -insert into t2 select * from t3; -insert into t3 select * from t2; -insert into t2 select * from t3; -insert into t3 select * from t2; -insert into t2 select * from t3; -insert into t3 select * from t2; -drop table t2; -create table t2 (a int not null); -insert into t2 values (1),(2),(3); -create table t4 (a int not null); -insert into t4 values (1),(2),(3); -select * from t4; -select * from t2; -select * from t1 as tt, t1 as ttt where tt.a=1 and ttt.a=2; -select * from t2; -select * from t4; -select * from t1 as tt, t1 as ttt where tt.a=1 and ttt.a=2; -select * from t2; -select * from t4; -select * from t1 as tt, t1 as ttt where tt.a=1 and ttt.a=2; -delete from t2 where a=1; -flush query cache; -select * from t3; -delete from t4 where a=1; -flush query cache; -drop table t1,t2,t3,t4; -set query_cache_wlock_invalidate=1; -create table t1 (a int not null); -create table t2 (a int not null); -select * from t1; -a -select * from t2; -a -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 2 -lock table t1 write, t2 read; -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 1 -unlock table; -drop table t1,t2; -set query_cache_wlock_invalidate=default; -CREATE TABLE t1 (id INT PRIMARY KEY); -insert into t1 values (1),(2),(3); -select * from t1; -id -1 -2 -3 -create temporary table t1 (a int not null auto_increment -primary key); -select * from t1; -a -drop table t1; -drop table t1; -SET NAMES koi8r; -CREATE TABLE t1 (a char(1) character set koi8r); -INSERT INTO t1 VALUES (_koi8r'á'),(_koi8r'Á'); -SELECT a,'Â','â'='Â' FROM t1; -a  'â'='Â' -á  1 -Á  1 -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 6 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 1 -set collation_connection=koi8r_bin; -SELECT a,'Â','â'='Â' FROM t1; -a  'â'='Â' -á  0 -Á  0 -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 6 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 2 -set character_set_client=cp1251; -SELECT a,'Â','â'='Â' FROM t1; -a ÷ '×'='÷' -á ÷ 0 -Á ÷ 0 -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 6 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 3 -set character_set_results=cp1251; -SELECT a,'Â','â'='Â' FROM t1; -a  'â'='Â' -À  0 -à  0 -show status like "Qcache_hits"; -Variable_name Value -Qcache_hits 6 -show status like "Qcache_queries_in_cache"; -Variable_name Value -Qcache_queries_in_cache 4 -DROP TABLE t1; -CREATE TABLE t1 (a int(1)); -CREATE DATABASE mysqltest; -USE mysqltest; -DROP DATABASE mysqltest; -SELECT * FROM test.t1; -a -USE test; -DROP TABLE t1; -set character_set_results=null; -select @@character_set_results; -@@character_set_results -NULL -set character_set_results=default; -set GLOBAL query_cache_size=1355776; -create table t1 (id int auto_increment primary key, c char(25)); -insert into t1 set c = repeat('x',24); -insert into t1 set c = concat(repeat('x',24),'x'); -insert into t1 set c = concat(repeat('x',24),'w'); -insert into t1 set c = concat(repeat('x',24),'y'); -set max_sort_length=200; -select c from t1 order by c, id; -c -xxxxxxxxxxxxxxxxxxxxxxxx -xxxxxxxxxxxxxxxxxxxxxxxxw -xxxxxxxxxxxxxxxxxxxxxxxxx -xxxxxxxxxxxxxxxxxxxxxxxxy -reset query cache; -set max_sort_length=20; -select c from t1 order by c, id; -c -xxxxxxxxxxxxxxxxxxxxxxxx -xxxxxxxxxxxxxxxxxxxxxxxxx -xxxxxxxxxxxxxxxxxxxxxxxxw -xxxxxxxxxxxxxxxxxxxxxxxxy -set max_sort_length=200; -select c from t1 order by c, id; -c -xxxxxxxxxxxxxxxxxxxxxxxx -xxxxxxxxxxxxxxxxxxxxxxxxw -xxxxxxxxxxxxxxxxxxxxxxxxx -xxxxxxxxxxxxxxxxxxxxxxxxy -set max_sort_length=default; -select '1' || '3' from t1; -'1' || '3' -1 -1 -1 -1 -set SQL_MODE=oracle; -select '1' || '3' from t1; -'1' || '3' -13 -13 -13 -13 -set SQL_MODE=default; -drop table t1; -create table t1 (a varchar(20), b int); -insert into t1 values ('12345678901234567890', 1); -set group_concat_max_len=10; -select group_concat(a) FROM t1 group by b; -group_concat(a) -1234567890 -Warnings: -Warning 1260 1 line(s) were cut by GROUP_CONCAT() -set group_concat_max_len=1024; -select group_concat(a) FROM t1 group by b; -group_concat(a) -12345678901234567890 -set group_concat_max_len=default; -drop table t1; -SET GLOBAL query_cache_size=0; |