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1ad294e064
execution of PS
GROUP_CONCAT() with ORDER BY column position may crash server on PS reexecution.
The problem was that arguments array of GROUP_CONCAT() was adjusted to point to
temporary elements (resolved ORDER BY fields) during first execution.
This patch expands rev. 08763096cb to restore original arguments array as well.
1121 lines
47 KiB
Text
1121 lines
47 KiB
Text
drop table if exists t1, t2;
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create table t1 (grp int, a bigint unsigned, c char(10) not null, d char(10) not null);
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insert into t1 values (1,1,"a","a");
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insert into t1 values (2,2,"b","a");
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insert into t1 values (2,3,"c","b");
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insert into t1 values (3,4,"E","a");
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insert into t1 values (3,5,"C","b");
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insert into t1 values (3,6,"D","b");
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insert into t1 values (3,7,"d","d");
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insert into t1 values (3,8,"d","d");
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insert into t1 values (3,9,"D","c");
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select grp,group_concat(c) from t1 group by grp;
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grp group_concat(c)
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1 a
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2 b,c
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3 E,C,D,d,d,D
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explain extended select grp,group_concat(c) from t1 group by grp;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 9 100.00 Using filesort
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Warnings:
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Note 1003 select `test`.`t1`.`grp` AS `grp`,group_concat(`test`.`t1`.`c` separator ',') AS `group_concat(c)` from `test`.`t1` group by `test`.`t1`.`grp`
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select grp,group_concat(a,c) from t1 group by grp;
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grp group_concat(a,c)
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1 1a
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2 2b,3c
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3 4E,5C,6D,7d,8d,9D
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select grp,group_concat("(",a,":",c,")") from t1 group by grp;
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grp group_concat("(",a,":",c,")")
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1 (1:a)
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2 (2:b),(3:c)
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3 (4:E),(5:C),(6:D),(7:d),(8:d),(9:D)
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select grp,group_concat(c separator ",") from t1 group by grp;
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grp group_concat(c separator ",")
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1 a
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2 b,c
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3 E,C,D,d,d,D
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select grp,group_concat(c separator "---->") from t1 group by grp;
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grp group_concat(c separator "---->")
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1 a
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2 b---->c
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3 E---->C---->D---->d---->d---->D
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select grp,group_concat(c order by c) from t1 group by grp;
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grp group_concat(c order by c)
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1 a
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2 b,c
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3 C,D,d,d,D,E
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select grp,group_concat(c order by c desc) from t1 group by grp;
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grp group_concat(c order by c desc)
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1 a
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2 c,b
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3 E,D,d,d,D,C
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select grp,group_concat(d order by a) from t1 group by grp;
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grp group_concat(d order by a)
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1 a
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2 a,b
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3 a,b,b,d,d,c
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select grp,group_concat(d order by a desc) from t1 group by grp;
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grp group_concat(d order by a desc)
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1 a
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2 b,a
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3 c,d,d,b,b,a
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select grp,group_concat(a order by a,d+c-ascii(c)-a) from t1 group by grp;
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grp group_concat(a order by a,d+c-ascii(c)-a)
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1 1
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2 2,3
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3 4,5,6,7,8,9
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select grp,group_concat(a order by d+c-ascii(c),a) from t1 group by grp;
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grp group_concat(a order by d+c-ascii(c),a)
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1 1
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2 3,2
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3 7,8,4,6,9,5
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select grp,group_concat(c order by 1) from t1 group by grp;
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grp group_concat(c order by 1)
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1 a
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2 b,c
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3 C,D,d,d,D,E
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select grp,group_concat(distinct c order by c) from t1 group by grp;
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grp group_concat(distinct c order by c)
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1 a
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2 b,c
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3 C,D,E
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select grp,group_concat(distinct c order by c desc) from t1 group by grp;
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grp group_concat(distinct c order by c desc)
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1 a
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2 c,b
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3 E,D,C
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explain extended select grp,group_concat(distinct c order by c desc) from t1 group by grp;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 9 100.00 Using filesort
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Warnings:
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Note 1003 select `test`.`t1`.`grp` AS `grp`,group_concat(distinct `test`.`t1`.`c` order by `test`.`t1`.`c` DESC separator ',') AS `group_concat(distinct c order by c desc)` from `test`.`t1` group by `test`.`t1`.`grp`
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select grp,group_concat(c order by c separator ",") from t1 group by grp;
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grp group_concat(c order by c separator ",")
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1 a
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2 b,c
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3 C,D,d,d,D,E
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select grp,group_concat(c order by c desc separator ",") from t1 group by grp;
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grp group_concat(c order by c desc separator ",")
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1 a
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2 c,b
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3 E,D,d,d,D,C
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select grp,group_concat(distinct c order by c separator ",") from t1 group by grp;
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grp group_concat(distinct c order by c separator ",")
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1 a
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2 b,c
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3 C,D,E
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explain extended select grp,group_concat(distinct c order by c separator ",") from t1 group by grp;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 9 100.00 Using filesort
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Warnings:
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Note 1003 select `test`.`t1`.`grp` AS `grp`,group_concat(distinct `test`.`t1`.`c` order by `test`.`t1`.`c` ASC separator ',') AS `group_concat(distinct c order by c separator ",")` from `test`.`t1` group by `test`.`t1`.`grp`
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select grp,group_concat(distinct c order by c desc separator ",") from t1 group by grp;
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grp group_concat(distinct c order by c desc separator ",")
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1 a
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2 c,b
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3 E,D,C
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select grp,group_concat(c order by grp desc) from t1 group by grp order by grp;
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grp group_concat(c order by grp desc)
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1 a
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2 c,b
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3 D,d,d,D,C,E
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select grp, group_concat(a separator "")+0 from t1 group by grp;
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grp group_concat(a separator "")+0
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1 1
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2 23
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3 456789
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select grp, group_concat(a separator "")+0.0 from t1 group by grp;
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grp group_concat(a separator "")+0.0
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1 1.0
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2 23.0
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3 456789.0
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select grp, ROUND(group_concat(a separator "")) from t1 group by grp;
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grp ROUND(group_concat(a separator ""))
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1 1
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2 23
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3 456789
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drop table t1;
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create table t1 (grp int, c char(10));
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insert into t1 values (1,NULL),(2,"b"),(2,NULL),(3,"E"),(3,NULL),(3,"D"),(3,NULL),(3,NULL),(3,"D"),(4,""),(5,NULL);
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select grp,group_concat(c order by c) from t1 group by grp;
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grp group_concat(c order by c)
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1 NULL
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2 b
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3 D,D,E
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4
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5 NULL
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set group_concat_max_len = 4;
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select grp,group_concat(c) from t1 group by grp;
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grp group_concat(c)
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1 NULL
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2 b
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3 D,D,
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4
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5 NULL
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Warnings:
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Warning 1260 Row 4 was cut by GROUP_CONCAT()
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show warnings;
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Level Code Message
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Warning 1260 Row 4 was cut by GROUP_CONCAT()
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set group_concat_max_len = 1024;
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select group_concat(sum(c)) from t1 group by grp;
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ERROR HY000: Invalid use of group function
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select grp,group_concat(c order by 2) from t1 group by grp;
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ERROR 42S22: Unknown column '2' in 'order clause'
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drop table t1;
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create table t1 ( URL_ID int(11), URL varchar(80));
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create table t2 ( REQ_ID int(11), URL_ID int(11));
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insert into t1 values (4,'www.host.com'), (5,'www.google.com'),(5,'www.help.com');
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insert into t2 values (1,4), (5,4), (5,5);
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select REQ_ID, Group_Concat(URL) as URL from t1, t2 where
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t2.URL_ID = t1.URL_ID group by REQ_ID;
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REQ_ID URL
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1 X
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5 X,X,X
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select REQ_ID, Group_Concat(URL) as URL, Min(t1.URL_ID) urll,
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Max(t1.URL_ID) urlg from t1, t2 where t2.URL_ID = t1.URL_ID group by REQ_ID;
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REQ_ID URL urll urlg
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1 X 4 4
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5 X,X,X 4 5
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drop table t1;
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drop table t2;
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create table t1 (id int, name varchar(16));
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insert into t1 values (1,'longername'),(1,'evenlongername');
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select ifnull(group_concat(concat(t1.id, ':', t1.name)), 'shortname') as 'without distinct: how it should be' from t1;
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without distinct: how it should be
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1:longername,1:evenlongername
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select distinct ifnull(group_concat(concat(t1.id, ':', t1.name)), 'shortname') as 'with distinct: cutoff at length of shortname' from t1;
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with distinct: cutoff at length of shortname
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1:longername,1:evenlongername
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drop table t1;
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create table t1(id int);
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create table t2(id int);
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insert into t1 values(0),(1);
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select group_concat(t1.id) FROM t1,t2;
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group_concat(t1.id)
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NULL
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drop table t1;
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drop table t2;
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create table t1 (bar varchar(32));
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insert into t1 values('test1'),('test2');
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select group_concat(bar order by concat(bar,bar)) from t1;
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group_concat(bar order by concat(bar,bar))
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test1,test2
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select group_concat(bar order by concat(bar,bar) desc) from t1;
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group_concat(bar order by concat(bar,bar) desc)
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test2,test1
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select bar from t1 having group_concat(bar)='';
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bar
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select bar from t1 having instr(group_concat(bar), "test") > 0;
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bar
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test1
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select bar from t1 having instr(group_concat(bar order by concat(bar,bar) desc), "test2,test1") > 0;
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bar
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test1
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drop table t1;
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create table t1 (a int, a1 varchar(10));
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create table t2 (a0 int);
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insert into t1 values (0,"a"),(0,"b"),(1,"c");
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insert into t2 values (1),(2),(3);
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select group_concat(a1 order by (t1.a IN (select a0 from t2))) from t1;
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group_concat(a1 order by (t1.a IN (select a0 from t2)))
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b,a,c
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select group_concat(a1 order by (t1.a)) from t1;
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group_concat(a1 order by (t1.a))
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b,a,c
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drop table t1, t2;
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CREATE TABLE t1 (id1 tinyint(4) NOT NULL, id2 tinyint(4) NOT NULL);
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INSERT INTO t1 VALUES (1, 1),(1, 2),(1, 3),(1, 4),(1, 5),(2, 1),(2, 2),(2, 3);
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CREATE TABLE t2 (id1 tinyint(4) NOT NULL);
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INSERT INTO t2 VALUES (1),(2),(3),(4),(5);
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SELECT t1.id1, GROUP_CONCAT(t1.id2 ORDER BY t1.id2 ASC) AS concat_id FROM t1, t2 WHERE t1.id1 = t2.id1 AND t1.id1=1 GROUP BY t1.id1;
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id1 concat_id
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1 1,2,3,4,5
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SELECT t1.id1, GROUP_CONCAT(t1.id2 ORDER BY t1.id2 ASC) AS concat_id FROM t1, t2 WHERE t1.id1 = t2.id1 GROUP BY t1.id1;
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id1 concat_id
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1 1,2,3,4,5
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2 1,2,3
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SELECT t1.id1, GROUP_CONCAT(t1.id2 ORDER BY t1.id2 DESC) AS concat_id FROM t1, t2 WHERE t1.id1 = t2.id1 GROUP BY t1.id1;
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id1 concat_id
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1 5,4,3,2,1
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2 3,2,1
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SELECT t1.id1, GROUP_CONCAT(t1.id2 ORDER BY 6-t1.id2 ASC) AS concat_id FROM t1, t2 WHERE t1.id1 = t2.id1 GROUP BY t1.id1;
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id1 concat_id
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1 5,4,3,2,1
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2 3,2,1
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SELECT t1.id1, GROUP_CONCAT(t1.id2,6-t1.id2 ORDER BY 6-t1.id2 ASC) AS concat_id FROM t1, t2 WHERE t1.id1 = t2.id1 GROUP BY t1.id1;
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id1 concat_id
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1 51,42,33,24,15
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2 33,24,15
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SELECT t1.id1, GROUP_CONCAT(t1.id2,6-t1.id2 ORDER BY 6-t1.id2 ASC) AS concat_id FROM t1, t2 WHERE t1.id1 = t2.id1 GROUP BY t1.id1;
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id1 concat_id
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1 51,42,33,24,15
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2 33,24,15
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SELECT t1.id1, GROUP_CONCAT(t1.id2,"/",6-t1.id2 ORDER BY 1+0,6-t1.id2,t1.id2 ASC) AS concat_id FROM t1, t2 WHERE t1.id1 = t2.id1 GROUP BY t1.id1;
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id1 concat_id
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1 5/1,4/2,3/3,2/4,1/5
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2 3/3,2/4,1/5
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drop table t1,t2;
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create table t1 (s1 char(10), s2 int not null);
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insert into t1 values ('a',2),('b',2),('c',1),('a',3),('b',4),('c',4);
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select distinct s1 from t1 order by s2,s1;
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s1
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c
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a
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b
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select group_concat(distinct s1) from t1;
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group_concat(distinct s1)
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a,b,c
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select group_concat(distinct s1 order by s2) from t1 where s2 < 4;
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group_concat(distinct s1 order by s2)
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c,b,a
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select group_concat(distinct s1 order by s2) from t1;
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group_concat(distinct s1 order by s2)
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c,b,a
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drop table t1;
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create table t1 (a int, c int);
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insert into t1 values (1, 2), (2, 3), (2, 4), (3, 5);
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create table t2 (a int, c int);
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insert into t2 values (1, 5), (2, 4), (3, 3), (3,3);
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select group_concat(c) from t1;
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group_concat(c)
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2,3,4,5
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select group_concat(c order by (select c from t2 where t2.a=t1.a limit 1)) as grp from t1;
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grp
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5,4,3,2
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select group_concat(c order by (select mid(group_concat(c order by a),1,5) from t2 where t2.a=t1.a)) as grp from t1;
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grp
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5,4,3,2
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select group_concat(c order by (select mid(group_concat(c order by a),1,5) from t2 where t2.a=t1.a) desc) as grp from t1;
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grp
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2,4,3,5
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select t1.a, group_concat(c order by (select c from t2 where t2.a=t1.a limit 1)) as grp from t1 group by 1;
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a grp
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1 2
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2 4,3
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3 5
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select t1.a, group_concat(c order by (select mid(group_concat(c order by a),1,5) from t2 where t2.a=t1.a)) as grp from t1 group by 1;
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a grp
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1 2
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2 4,3
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3 5
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select t1.a, group_concat(c order by (select mid(group_concat(c order by a),1,5) from t2 where t2.a=t1.a) desc) as grp from t1 group by 1;
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a grp
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1 2
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2 4,3
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3 5
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select group_concat(c order by (select concat(5-t1.c,group_concat(c order by a)) from t2 where t2.a=t1.a)) as grp from t1;
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grp
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5,4,3,2
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select group_concat(c order by (select concat(t1.c,group_concat(c)) from t2 where a=t1.a)) as grp from t1;
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grp
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2,3,4,5
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select a,c,(select group_concat(c order by a) from t2 where a=t1.a) as grp from t1 order by grp;
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a c grp
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3 5 3,3
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2 3 4
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2 4 4
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1 2 5
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drop table t1,t2;
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CREATE TABLE t1 ( a int );
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CREATE TABLE t2 ( a int );
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INSERT INTO t1 VALUES (1), (2);
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INSERT INTO t2 VALUES (1), (2);
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SELECT GROUP_CONCAT(t1.a*t2.a ORDER BY t2.a) FROM t1, t2 GROUP BY t1.a;
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GROUP_CONCAT(t1.a*t2.a ORDER BY t2.a)
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1,2
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2,4
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DROP TABLE t1, t2;
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CREATE TABLE t1 (a char(4));
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INSERT INTO t1 VALUES ('John'), ('Anna'), ('Bill');
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SELECT GROUP_CONCAT(a SEPARATOR '||') AS names FROM t1
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HAVING names LIKE '%An%';
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names
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John||Anna||Bill
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SELECT GROUP_CONCAT(a SEPARATOR '###') AS names FROM t1
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HAVING LEFT(names, 1) ='J';
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names
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John###Anna###Bill
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DROP TABLE t1;
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CREATE TABLE t1 ( a int, b TEXT );
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INSERT INTO t1 VALUES (1,'First Row'), (2,'Second Row');
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SELECT GROUP_CONCAT(b ORDER BY b) FROM t1 GROUP BY a;
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GROUP_CONCAT(b ORDER BY b)
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First Row
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Second Row
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DROP TABLE t1;
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CREATE TABLE t1 (A_ID INT NOT NULL,A_DESC CHAR(3) NOT NULL,PRIMARY KEY (A_ID));
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INSERT INTO t1 VALUES (1,'ABC'), (2,'EFG'), (3,'HIJ');
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CREATE TABLE t2 (A_ID INT NOT NULL,B_DESC CHAR(3) NOT NULL,PRIMARY KEY (A_ID,B_DESC));
|
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INSERT INTO t2 VALUES (1,'A'),(1,'B'),(3,'F');
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SELECT t1.A_ID, GROUP_CONCAT(t2.B_DESC) AS B_DESC FROM t1 LEFT JOIN t2 ON t1.A_ID=t2.A_ID GROUP BY t1.A_ID ORDER BY t1.A_DESC;
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A_ID B_DESC
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1 A,B
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2 NULL
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3 F
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DROP TABLE t1;
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DROP TABLE t2;
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create table t1 (a int, b text);
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insert into t1 values (1, 'bb'), (1, 'ccc'), (1, 'a'), (1, 'bb'), (1, 'ccc');
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insert into t1 values (2, 'BB'), (2, 'CCC'), (2, 'A'), (2, 'BB'), (2, 'CCC');
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select group_concat(b) from t1 group by a;
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group_concat(b)
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bb,ccc,a,bb,ccc
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BB,CCC,A,BB,CCC
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select group_concat(distinct b) from t1 group by a;
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group_concat(distinct b)
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bb,ccc,a
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BB,CCC,A
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select group_concat(b order by b) from t1 group by a;
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group_concat(b order by b)
|
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a,bb,bb,ccc,ccc
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A,BB,BB,CCC,CCC
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select group_concat(distinct b order by b) from t1 group by a;
|
||
group_concat(distinct b order by b)
|
||
a,bb,ccc
|
||
A,BB,CCC
|
||
set local group_concat_max_len=4;
|
||
select group_concat(b) from t1 group by a;
|
||
group_concat(b)
|
||
bb,c
|
||
BB,C
|
||
Warnings:
|
||
Warning 1260 Row 2 was cut by GROUP_CONCAT()
|
||
Warning 1260 Row 4 was cut by GROUP_CONCAT()
|
||
select group_concat(distinct b) from t1 group by a;
|
||
group_concat(distinct b)
|
||
bb,c
|
||
BB,C
|
||
Warnings:
|
||
Warning 1260 Row 2 was cut by GROUP_CONCAT()
|
||
Warning 1260 Row 4 was cut by GROUP_CONCAT()
|
||
select group_concat(b order by b) from t1 group by a;
|
||
group_concat(b order by b)
|
||
a,bb
|
||
A,BB
|
||
Warnings:
|
||
Warning 1260 Row 3 was cut by GROUP_CONCAT()
|
||
Warning 1260 Row 6 was cut by GROUP_CONCAT()
|
||
select group_concat(distinct b order by b) from t1 group by a;
|
||
group_concat(distinct b order by b)
|
||
a,bb
|
||
A,BB
|
||
Warnings:
|
||
Warning 1260 Row 3 was cut by GROUP_CONCAT()
|
||
Warning 1260 Row 6 was cut by GROUP_CONCAT()
|
||
insert into t1 values (1, concat(repeat('1', 300), '2')),
|
||
(1, concat(repeat('1', 300), '2')), (1, concat(repeat('0', 300), '1')),
|
||
(2, concat(repeat('1', 300), '2')), (2, concat(repeat('1', 300), '2')),
|
||
(2, concat(repeat('0', 300), '1'));
|
||
set local group_concat_max_len=1024;
|
||
select group_concat(b) from t1 group by a;
|
||
group_concat(b)
|
||
bb,ccc,a,bb,ccc,1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112,1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112,0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
|
||
BB,CCC,A,BB,CCC,1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112,1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112,0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
|
||
select group_concat(distinct b) from t1 group by a;
|
||
group_concat(distinct b)
|
||
bb,ccc,a,1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112,0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
|
||
BB,CCC,A,1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112,0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
|
||
select group_concat(b order by b) from t1 group by a;
|
||
group_concat(b order by b)
|
||
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001,1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112,1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112,a,bb,bb,ccc,ccc
|
||
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001,1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112,1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112,A,BB,BB,CCC,CCC
|
||
select group_concat(distinct b order by b) from t1 group by a;
|
||
group_concat(distinct b order by b)
|
||
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001,1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112,a,bb,ccc
|
||
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001,1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112,A,BB,CCC
|
||
set local group_concat_max_len=400;
|
||
select group_concat(b) from t1 group by a;
|
||
group_concat(b)
|
||
bb,ccc,a,bb,ccc,1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112,1111111111111111111111111111111111111111111111111111111111111111111111111111111111
|
||
BB,CCC,A,BB,CCC,1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112,1111111111111111111111111111111111111111111111111111111111111111111111111111111111
|
||
Warnings:
|
||
Warning 1260 Row 7 was cut by GROUP_CONCAT()
|
||
Warning 1260 Row 14 was cut by GROUP_CONCAT()
|
||
select group_concat(distinct b) from t1 group by a;
|
||
group_concat(distinct b)
|
||
bb,ccc,a,1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112,00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
|
||
BB,CCC,A,1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112,00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
|
||
Warnings:
|
||
Warning 1260 Row 5 was cut by GROUP_CONCAT()
|
||
Warning 1260 Row 10 was cut by GROUP_CONCAT()
|
||
select group_concat(b order by b) from t1 group by a;
|
||
group_concat(b order by b)
|
||
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001,11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
|
||
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001,11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
|
||
Warnings:
|
||
Warning 1260 Row 2 was cut by GROUP_CONCAT()
|
||
Warning 1260 Row 4 was cut by GROUP_CONCAT()
|
||
select group_concat(distinct b order by b) from t1 group by a;
|
||
group_concat(distinct b order by b)
|
||
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001,11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
|
||
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001,11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
|
||
Warnings:
|
||
Warning 1260 Row 2 was cut by GROUP_CONCAT()
|
||
Warning 1260 Row 4 was cut by GROUP_CONCAT()
|
||
drop table t1;
|
||
create table t1 (a varchar(255) character set cp1250 collate cp1250_general_ci,
|
||
b varchar(255) character set koi8r);
|
||
insert into t1 values ('xxx','yyy');
|
||
select collation(a) from t1;
|
||
collation(a)
|
||
cp1250_general_ci
|
||
select collation(group_concat(a)) from t1;
|
||
collation(group_concat(a))
|
||
cp1250_general_ci
|
||
create table t2 select group_concat(a) as a from t1;
|
||
show create table t2;
|
||
Table Create Table
|
||
t2 CREATE TABLE `t2` (
|
||
`a` varchar(400) CHARACTER SET cp1250 DEFAULT NULL
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
select collation(group_concat(a,_koi8r'test')) from t1;
|
||
collation(group_concat(a,_koi8r'test'))
|
||
cp1250_general_ci
|
||
select collation(group_concat(a,_koi8r 0xC1C2)) from t1;
|
||
ERROR HY000: Illegal mix of collations (cp1250_general_ci,IMPLICIT) and (koi8r_general_ci,COERCIBLE) for operation 'group_concat'
|
||
select collation(group_concat(a,b)) from t1;
|
||
ERROR HY000: Illegal mix of collations (cp1250_general_ci,IMPLICIT) and (koi8r_general_ci,IMPLICIT) for operation 'group_concat'
|
||
drop table t1;
|
||
drop table t2;
|
||
CREATE TABLE t1 (a CHAR(10) CHARACTER SET cp850);
|
||
INSERT INTO t1 VALUES ('<27>');
|
||
SELECT a FROM t1;
|
||
a
|
||
<EFBFBD>
|
||
SELECT GROUP_CONCAT(a) FROM t1;
|
||
GROUP_CONCAT(a)
|
||
<EFBFBD>
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (id int);
|
||
SELECT GROUP_CONCAT(id) AS gc FROM t1 HAVING gc IS NULL;
|
||
gc
|
||
NULL
|
||
DROP TABLE t1;
|
||
create table t2 (a int, b int);
|
||
insert into t2 values (1,1), (2,2);
|
||
select b x, (select group_concat(x) from t2) from t2;
|
||
x (select group_concat(x) from t2)
|
||
1 1,1
|
||
2 2,2
|
||
drop table t2;
|
||
create table t1 (d int not null auto_increment,primary key(d), a int, b int, c int);
|
||
insert into t1(a,b) values (1,3), (1,4), (1,2), (2,7), (1,1), (1,2), (2,3), (2,3);
|
||
select d,a,b from t1 order by a;
|
||
d a b
|
||
1 1 3
|
||
2 1 4
|
||
3 1 2
|
||
5 1 1
|
||
6 1 2
|
||
4 2 7
|
||
7 2 3
|
||
8 2 3
|
||
explain select a, group_concat(b) from t1 group by a with rollup;
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using filesort
|
||
select a, group_concat(b) from t1 group by a with rollup;
|
||
a group_concat(b)
|
||
1 3,4,2,1,2
|
||
2 7,3,3
|
||
NULL 3,4,2,1,2,7,3,3
|
||
select a, group_concat(distinct b) from t1 group by a with rollup;
|
||
a group_concat(distinct b)
|
||
1 3,4,2,1
|
||
2 7,3
|
||
NULL 3,4,2,1,7
|
||
select a, group_concat(b order by b) from t1 group by a with rollup;
|
||
a group_concat(b order by b)
|
||
1 1,2,2,3,4
|
||
2 3,3,7
|
||
NULL 1,2,2,3,3,3,4,7
|
||
select a, group_concat(distinct b order by b) from t1 group by a with rollup;
|
||
a group_concat(distinct b order by b)
|
||
1 1,2,3,4
|
||
2 3,7
|
||
NULL 1,2,3,4,7
|
||
drop table t1;
|
||
create table t1 (a char(3), b char(20), primary key (a, b));
|
||
insert into t1 values ('ABW', 'Dutch'), ('ABW', 'English');
|
||
select group_concat(a) from t1 group by b;
|
||
group_concat(a)
|
||
ABW
|
||
ABW
|
||
drop table t1;
|
||
CREATE TABLE t1 (
|
||
aID smallint(5) unsigned NOT NULL auto_increment,
|
||
sometitle varchar(255) NOT NULL default '',
|
||
bID smallint(5) unsigned NOT NULL,
|
||
PRIMARY KEY (aID),
|
||
UNIQUE KEY sometitle (sometitle)
|
||
);
|
||
INSERT INTO t1 SET sometitle = 'title1', bID = 1;
|
||
INSERT INTO t1 SET sometitle = 'title2', bID = 1;
|
||
CREATE TABLE t2 (
|
||
bID smallint(5) unsigned NOT NULL auto_increment,
|
||
somename varchar(255) NOT NULL default '',
|
||
PRIMARY KEY (bID),
|
||
UNIQUE KEY somename (somename)
|
||
);
|
||
INSERT INTO t2 SET somename = 'test';
|
||
SELECT COUNT(*), GROUP_CONCAT(DISTINCT t2.somename SEPARATOR ' |')
|
||
FROM t1 JOIN t2 ON t1.bID = t2.bID;
|
||
COUNT(*) GROUP_CONCAT(DISTINCT t2.somename SEPARATOR ' |')
|
||
2 test
|
||
INSERT INTO t2 SET somename = 'test2';
|
||
SELECT COUNT(*), GROUP_CONCAT(DISTINCT t2.somename SEPARATOR ' |')
|
||
FROM t1 JOIN t2 ON t1.bID = t2.bID;
|
||
COUNT(*) GROUP_CONCAT(DISTINCT t2.somename SEPARATOR ' |')
|
||
2 test
|
||
DELETE FROM t2 WHERE somename = 'test2';
|
||
SELECT COUNT(*), GROUP_CONCAT(DISTINCT t2.somename SEPARATOR ' |')
|
||
FROM t1 JOIN t2 ON t1.bID = t2.bID;
|
||
COUNT(*) GROUP_CONCAT(DISTINCT t2.somename SEPARATOR ' |')
|
||
2 test
|
||
DROP TABLE t1,t2;
|
||
select * from (select group_concat('c') from DUAL) t;
|
||
group_concat('c')
|
||
c
|
||
create table t1 ( a int not null default 0);
|
||
select * from (select group_concat(a) from t1) t2;
|
||
group_concat(a)
|
||
NULL
|
||
select group_concat('x') UNION ALL select 1;
|
||
group_concat('x')
|
||
x
|
||
1
|
||
drop table t1;
|
||
CREATE TABLE t1 (id int, a varchar(9));
|
||
INSERT INTO t1 VALUES
|
||
(2, ''), (1, ''), (2, 'x'), (1, 'y'), (3, 'z'), (3, '');
|
||
SELECT GROUP_CONCAT(a) FROM t1;
|
||
GROUP_CONCAT(a)
|
||
,,x,y,z,
|
||
SELECT GROUP_CONCAT(a ORDER BY a) FROM t1;
|
||
GROUP_CONCAT(a ORDER BY a)
|
||
,,,x,y,z
|
||
SELECT GROUP_CONCAT(a) FROM t1 GROUP BY id;
|
||
GROUP_CONCAT(a)
|
||
,y
|
||
,x
|
||
z,
|
||
SELECT GROUP_CONCAT(a ORDER BY a) FROM t1 GROUP BY id;
|
||
GROUP_CONCAT(a ORDER BY a)
|
||
,y
|
||
,x
|
||
,z
|
||
DROP TABLE t1;
|
||
create table t1(f1 int);
|
||
insert into t1 values(1),(2),(3);
|
||
select f1, group_concat(f1+1) from t1 group by f1 with rollup;
|
||
f1 group_concat(f1+1)
|
||
1 2
|
||
2 3
|
||
3 4
|
||
NULL 2,3,4
|
||
select count(distinct (f1+1)) from t1 group by f1 with rollup;
|
||
count(distinct (f1+1))
|
||
1
|
||
1
|
||
1
|
||
3
|
||
drop table t1;
|
||
create table t1 (f1 int unsigned, f2 varchar(255));
|
||
insert into t1 values (1,repeat('a',255)),(2,repeat('b',255));
|
||
select f2,group_concat(f1) from t1 group by f2;
|
||
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
|
||
def test t1 t1 f2 f2 253 255 255 Y 0 0 8
|
||
def group_concat(f1) 253 400 1 Y 0 0 8
|
||
f2 group_concat(f1)
|
||
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 1
|
||
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb 2
|
||
drop table t1;
|
||
set names latin1;
|
||
create table t1 (a char, b char);
|
||
insert into t1 values ('a', 'a'), ('a', 'b'), ('b', 'a'), ('b', 'b');
|
||
create table t2 select group_concat(b) as a from t1 where a = 'a';
|
||
create table t3 (select group_concat(a) as a from t1 where a = 'a') union
|
||
(select group_concat(b) as a from t1 where a = 'b');
|
||
select charset(a) from t2;
|
||
charset(a)
|
||
latin1
|
||
select charset(a) from t3;
|
||
charset(a)
|
||
latin1
|
||
latin1
|
||
drop table t1, t2, t3;
|
||
set names default;
|
||
create table t1 (c1 varchar(10), c2 int);
|
||
select charset(group_concat(c1 order by c2)) from t1;
|
||
charset(group_concat(c1 order by c2))
|
||
latin1
|
||
drop table t1;
|
||
CREATE TABLE t1 (a INT(10), b LONGTEXT, PRIMARY KEY (a));
|
||
SET GROUP_CONCAT_MAX_LEN = 20000000;
|
||
INSERT INTO t1 VALUES (1,REPEAT(CONCAT('A',CAST(CHAR(0) AS BINARY),'B'), 40000));
|
||
INSERT INTO t1 SELECT a + 1, b FROM t1;
|
||
SELECT a, CHAR_LENGTH(b) FROM t1;
|
||
a CHAR_LENGTH(b)
|
||
1 120000
|
||
2 120000
|
||
SELECT CHAR_LENGTH( GROUP_CONCAT(b) ) FROM t1;
|
||
CHAR_LENGTH( GROUP_CONCAT(b) )
|
||
240001
|
||
SET GROUP_CONCAT_MAX_LEN = 1024;
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (a int, b int);
|
||
INSERT INTO t1 VALUES (2,1), (1,2), (2,2), (1,3);
|
||
SELECT GROUP_CONCAT(a), x
|
||
FROM (SELECT a, GROUP_CONCAT(b) x FROM t1 GROUP BY a) AS s
|
||
GROUP BY x;
|
||
GROUP_CONCAT(a) x
|
||
2 1,2
|
||
1 2,3
|
||
DROP TABLE t1;
|
||
set names utf8;
|
||
create table t1
|
||
(
|
||
x text character set utf8 not null,
|
||
y integer not null
|
||
);
|
||
insert into t1 values (repeat('a', 1022), 0), (repeat(_utf8 0xc3b7, 4), 0);
|
||
set group_concat_max_len= 1022 + 10;
|
||
select @x:=group_concat(x) from t1 group by y;
|
||
select @@group_concat_max_len, length(@x), char_length(@x), right(@x,12), right(HEX(@x),12);
|
||
@@group_concat_max_len length(@x) char_length(@x) right(@x,12) right(HEX(@x),12)
|
||
1032 1031 1027 aaaaaaa,÷÷÷÷ C3B7C3B7C3B7
|
||
set group_concat_max_len= 1022 + 9;
|
||
select @x:=group_concat(x) from t1 group by y;
|
||
select @@group_concat_max_len, length(@x), char_length(@x), right(@x,12), right(HEX(@x),12);
|
||
@@group_concat_max_len length(@x) char_length(@x) right(@x,12) right(HEX(@x),12)
|
||
1031 1031 1027 aaaaaaa,÷÷÷÷ C3B7C3B7C3B7
|
||
set group_concat_max_len= 1022 + 8;
|
||
select @x:=group_concat(x) from t1 group by y;
|
||
select @@group_concat_max_len, length(@x), char_length(@x), right(@x,12), right(HEX(@x),12);
|
||
@@group_concat_max_len length(@x) char_length(@x) right(@x,12) right(HEX(@x),12)
|
||
1030 1029 1026 aaaaaaaa,÷÷÷ C3B7C3B7C3B7
|
||
set group_concat_max_len= 1022 + 7;
|
||
select @x:=group_concat(x) from t1 group by y;
|
||
select @@group_concat_max_len, length(@x), char_length(@x), right(@x,12), right(HEX(@x),12);
|
||
@@group_concat_max_len length(@x) char_length(@x) right(@x,12) right(HEX(@x),12)
|
||
1029 1029 1026 aaaaaaaa,÷÷÷ C3B7C3B7C3B7
|
||
set group_concat_max_len= 1022 + 6;
|
||
select @x:=group_concat(x) from t1 group by y;
|
||
select @@group_concat_max_len, length(@x), char_length(@x), right(@x,12), right(HEX(@x),12);
|
||
@@group_concat_max_len length(@x) char_length(@x) right(@x,12) right(HEX(@x),12)
|
||
1028 1027 1025 aaaaaaaaa,÷÷ 612CC3B7C3B7
|
||
set group_concat_max_len= 1022 + 5;
|
||
select @x:=group_concat(x) from t1 group by y;
|
||
select @@group_concat_max_len, length(@x), char_length(@x), right(@x,12), right(HEX(@x),12);
|
||
@@group_concat_max_len length(@x) char_length(@x) right(@x,12) right(HEX(@x),12)
|
||
1027 1027 1025 aaaaaaaaa,÷÷ 612CC3B7C3B7
|
||
set group_concat_max_len= 1022 + 4;
|
||
select @x:=group_concat(x) from t1 group by y;
|
||
select @@group_concat_max_len, length(@x), char_length(@x), right(@x,12), right(HEX(@x),12);
|
||
@@group_concat_max_len length(@x) char_length(@x) right(@x,12) right(HEX(@x),12)
|
||
1026 1025 1024 aaaaaaaaaa,÷ 6161612CC3B7
|
||
set group_concat_max_len= 1022 + 3;
|
||
select @x:=group_concat(x) from t1 group by y;
|
||
select @@group_concat_max_len, length(@x), char_length(@x), right(@x,12), right(HEX(@x),12);
|
||
@@group_concat_max_len length(@x) char_length(@x) right(@x,12) right(HEX(@x),12)
|
||
1025 1025 1024 aaaaaaaaaa,÷ 6161612CC3B7
|
||
set group_concat_max_len= 1022 + 2;
|
||
select @x:=group_concat(x) from t1 group by y;
|
||
select @@group_concat_max_len, length(@x), char_length(@x), right(@x,12), right(HEX(@x),12);
|
||
@@group_concat_max_len length(@x) char_length(@x) right(@x,12) right(HEX(@x),12)
|
||
1024 1023 1023 aaaaaaaaaaa, 61616161612C
|
||
set group_concat_max_len= 1022 + 1;
|
||
select @x:=group_concat(x) from t1 group by y;
|
||
select @@group_concat_max_len, length(@x), char_length(@x), right(@x,12), right(HEX(@x),12);
|
||
@@group_concat_max_len length(@x) char_length(@x) right(@x,12) right(HEX(@x),12)
|
||
1023 1023 1023 aaaaaaaaaaa, 61616161612C
|
||
drop table t1;
|
||
set group_concat_max_len=1024;
|
||
set names latin1;
|
||
create table t1 (f1 int unsigned, f2 varchar(255));
|
||
insert into t1 values (1,repeat('a',255)),(2,repeat('b',255));
|
||
select f2,group_concat(f1) from t1 group by f2;
|
||
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
|
||
def test t1 t1 f2 f2 253 255 255 Y 0 0 8
|
||
def group_concat(f1) 252 1024 1 Y 0 0 8
|
||
f2 group_concat(f1)
|
||
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 1
|
||
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb 2
|
||
drop table t1;
|
||
CREATE TABLE t1(a TEXT, b CHAR(20));
|
||
INSERT INTO t1 VALUES ("one.1","one.1"),("two.2","two.2"),("one.3","one.3");
|
||
SELECT GROUP_CONCAT(DISTINCT UCASE(a)) FROM t1;
|
||
GROUP_CONCAT(DISTINCT UCASE(a))
|
||
ONE.1,TWO.2,ONE.3
|
||
SELECT GROUP_CONCAT(DISTINCT UCASE(b)) FROM t1;
|
||
GROUP_CONCAT(DISTINCT UCASE(b))
|
||
ONE.1,TWO.2,ONE.3
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1( a VARCHAR( 10 ), b INT );
|
||
INSERT INTO t1 VALUES ( repeat( 'a', 10 ), 1),
|
||
( repeat( 'b', 10 ), 2);
|
||
SET group_concat_max_len = 20;
|
||
SELECT GROUP_CONCAT( a ) FROM t1;
|
||
GROUP_CONCAT( a )
|
||
aaaaaaaaaa,bbbbbbbbb
|
||
Warnings:
|
||
Warning 1260 Row 2 was cut by GROUP_CONCAT()
|
||
SELECT GROUP_CONCAT( DISTINCT a ) FROM t1;
|
||
GROUP_CONCAT( DISTINCT a )
|
||
aaaaaaaaaa,bbbbbbbbb
|
||
Warnings:
|
||
Warning 1260 Row 2 was cut by GROUP_CONCAT()
|
||
SELECT GROUP_CONCAT( a ORDER BY b ) FROM t1;
|
||
GROUP_CONCAT( a ORDER BY b )
|
||
aaaaaaaaaa,bbbbbbbbb
|
||
Warnings:
|
||
Warning 1260 Row 2 was cut by GROUP_CONCAT()
|
||
SELECT GROUP_CONCAT( DISTINCT a ORDER BY b ) FROM t1;
|
||
GROUP_CONCAT( DISTINCT a ORDER BY b )
|
||
aaaaaaaaaa,bbbbbbbbb
|
||
Warnings:
|
||
Warning 1260 Row 2 was cut by GROUP_CONCAT()
|
||
SET group_concat_max_len = DEFAULT;
|
||
DROP TABLE t1;
|
||
SET group_concat_max_len= 65535;
|
||
CREATE TABLE t1( a TEXT, b INTEGER );
|
||
INSERT INTO t1 VALUES ( 'a', 0 ), ( 'b', 1 );
|
||
SELECT GROUP_CONCAT( a ORDER BY b ) FROM t1;
|
||
GROUP_CONCAT( a ORDER BY b )
|
||
a,b
|
||
SELECT GROUP_CONCAT(DISTINCT a ORDER BY b) FROM t1;
|
||
GROUP_CONCAT(DISTINCT a ORDER BY b)
|
||
a,b
|
||
SELECT GROUP_CONCAT(DISTINCT a) FROM t1;
|
||
GROUP_CONCAT(DISTINCT a)
|
||
a,b
|
||
SET group_concat_max_len= 10;
|
||
SELECT GROUP_CONCAT(a ORDER BY b) FROM t1;
|
||
GROUP_CONCAT(a ORDER BY b)
|
||
a,b
|
||
SELECT GROUP_CONCAT(DISTINCT a ORDER BY b) FROM t1;
|
||
GROUP_CONCAT(DISTINCT a ORDER BY b)
|
||
a,b
|
||
SELECT GROUP_CONCAT(DISTINCT a) FROM t1;
|
||
GROUP_CONCAT(DISTINCT a)
|
||
a,b
|
||
SET group_concat_max_len= 65535;
|
||
CREATE TABLE t2( a TEXT );
|
||
INSERT INTO t2 VALUES( REPEAT( 'a', 5000 ) );
|
||
INSERT INTO t2 VALUES( REPEAT( 'b', 5000 ) );
|
||
INSERT INTO t2 VALUES( REPEAT( 'a', 5000 ) );
|
||
SELECT LENGTH( GROUP_CONCAT( DISTINCT a ) ) FROM t2;
|
||
LENGTH( GROUP_CONCAT( DISTINCT a ) )
|
||
10001
|
||
CREATE TABLE t3( a TEXT, b INT );
|
||
INSERT INTO t3 VALUES( REPEAT( 'a', 65534 ), 1 );
|
||
INSERT INTO t3 VALUES( REPEAT( 'a', 65535 ), 2 );
|
||
INSERT INTO t3 VALUES( REPEAT( 'a', 65536 ), 3 );
|
||
Warnings:
|
||
Warning 1265 Data truncated for column 'a' at row 1
|
||
SELECT LENGTH( GROUP_CONCAT( a ) ) FROM t3 WHERE b = 1;
|
||
LENGTH( GROUP_CONCAT( a ) )
|
||
65534
|
||
SELECT LENGTH( GROUP_CONCAT( a ) ) FROM t3 WHERE b = 2;
|
||
LENGTH( GROUP_CONCAT( a ) )
|
||
65535
|
||
SELECT LENGTH( GROUP_CONCAT( a ) ) FROM t3 WHERE b = 3;
|
||
LENGTH( GROUP_CONCAT( a ) )
|
||
65535
|
||
SET group_concat_max_len= DEFAULT;
|
||
DROP TABLE t1, t2, t3;
|
||
set names latin1;
|
||
create table t1 (id int, name varchar(20)) DEFAULT CHARSET=utf8;
|
||
insert into t1 (id, name) values (1, "<22>ra");
|
||
insert into t1 (id, name) values (2, "<22>ra");
|
||
select b.id, group_concat(b.name) from t1 a, t1 b group by b.id;
|
||
id group_concat(b.name)
|
||
1 <09>ra,<2C>ra
|
||
2 <09>ra,<2C>ra
|
||
drop table t1;
|
||
create table t1(a bit not null);
|
||
insert into t1 values (), (), ();
|
||
Warnings:
|
||
Warning 1364 Field 'a' doesn't have a default value
|
||
select group_concat(distinct a) from t1;
|
||
group_concat(distinct a)
|
||
0
|
||
select group_concat(distinct a order by a) from t1;
|
||
group_concat(distinct a order by a)
|
||
0
|
||
drop table t1;
|
||
create table t1(a bit(2) not null);
|
||
insert into t1 values (1), (0), (0), (3), (1);
|
||
select group_concat(distinct a) from t1;
|
||
group_concat(distinct a)
|
||
1,0,3
|
||
select group_concat(distinct a order by a) from t1;
|
||
group_concat(distinct a order by a)
|
||
0,1,3
|
||
select group_concat(distinct a order by a desc) from t1;
|
||
group_concat(distinct a order by a desc)
|
||
3,1,0
|
||
drop table t1;
|
||
create table t1(a bit(2), b varchar(10), c bit);
|
||
insert into t1 values (1, 'a', 0), (0, 'b', 1), (0, 'c', 0), (3, 'd', 1),
|
||
(1, 'e', 1), (3, 'f', 1), (0, 'g', 1);
|
||
select group_concat(distinct a, c) from t1;
|
||
group_concat(distinct a, c)
|
||
10,01,00,31,11
|
||
select group_concat(distinct a, c order by a) from t1;
|
||
group_concat(distinct a, c order by a)
|
||
00,01,11,10,31
|
||
select group_concat(distinct a, c) from t1;
|
||
group_concat(distinct a, c)
|
||
10,01,00,31,11
|
||
select group_concat(distinct a, c order by a, c) from t1;
|
||
group_concat(distinct a, c order by a, c)
|
||
00,01,10,11,31
|
||
select group_concat(distinct a, c order by a desc, c desc) from t1;
|
||
group_concat(distinct a, c order by a desc, c desc)
|
||
31,11,10,01,00
|
||
drop table t1;
|
||
create table t1 (f1 char(20));
|
||
insert into t1 values (''),('');
|
||
select group_concat(distinct f1) from t1;
|
||
group_concat(distinct f1)
|
||
|
||
select group_concat(f1) from t1;
|
||
group_concat(f1)
|
||
,
|
||
drop table t1;
|
||
CREATE TABLE t1 (a INT, b INT);
|
||
INSERT INTO t1 VALUES (1, 1), (2, 2), (2, 3);
|
||
SELECT GROUP_CONCAT(DISTINCT a ORDER BY b) FROM t1;
|
||
GROUP_CONCAT(DISTINCT a ORDER BY b)
|
||
1,2
|
||
SELECT GROUP_CONCAT(DISTINCT a ORDER BY b DESC) FROM t1;
|
||
GROUP_CONCAT(DISTINCT a ORDER BY b DESC)
|
||
2,1
|
||
SELECT GROUP_CONCAT(DISTINCT a) FROM t1;
|
||
GROUP_CONCAT(DISTINCT a)
|
||
1,2
|
||
SELECT GROUP_CONCAT(DISTINCT a + 1 ORDER BY 3 - b) FROM t1;
|
||
GROUP_CONCAT(DISTINCT a + 1 ORDER BY 3 - b)
|
||
3,2
|
||
SELECT GROUP_CONCAT(DISTINCT a + 1 ORDER BY b) FROM t1;
|
||
GROUP_CONCAT(DISTINCT a + 1 ORDER BY b)
|
||
2,3
|
||
SELECT GROUP_CONCAT(a ORDER BY 3 - b) FROM t1;
|
||
GROUP_CONCAT(a ORDER BY 3 - b)
|
||
2,2,1
|
||
CREATE TABLE t2 (a INT, b INT, c INT, d INT);
|
||
INSERT INTO t2 VALUES (1,1, 1,1), (1,1, 2,2), (1,2, 2,1), (2,1, 1,2);
|
||
SELECT GROUP_CONCAT(DISTINCT a, b ORDER BY c, d) FROM t2;
|
||
GROUP_CONCAT(DISTINCT a, b ORDER BY c, d)
|
||
11,21,12
|
||
SELECT GROUP_CONCAT(DISTINCT a, b ORDER BY d, c) FROM t2;
|
||
GROUP_CONCAT(DISTINCT a, b ORDER BY d, c)
|
||
11,12,21
|
||
CREATE TABLE t3 (a INT, b INT, c INT);
|
||
INSERT INTO t3 VALUES (1, 1, 1), (2, 1, 2), (3, 2, 1);
|
||
SELECT GROUP_CONCAT(DISTINCT a, b ORDER BY b, c) FROM t3;
|
||
GROUP_CONCAT(DISTINCT a, b ORDER BY b, c)
|
||
11,21,32
|
||
SELECT GROUP_CONCAT(DISTINCT a, b ORDER BY c, b) FROM t3;
|
||
GROUP_CONCAT(DISTINCT a, b ORDER BY c, b)
|
||
11,32,21
|
||
SELECT GROUP_CONCAT(DISTINCT a, b ORDER BY a, b) FROM t1;
|
||
GROUP_CONCAT(DISTINCT a, b ORDER BY a, b)
|
||
11,22,23
|
||
SELECT GROUP_CONCAT(DISTINCT b, a ORDER BY a, b) FROM t1;
|
||
GROUP_CONCAT(DISTINCT b, a ORDER BY a, b)
|
||
11,22,32
|
||
SELECT GROUP_CONCAT(DISTINCT a, b ORDER BY b, a) FROM t1;
|
||
GROUP_CONCAT(DISTINCT a, b ORDER BY b, a)
|
||
11,22,23
|
||
SELECT GROUP_CONCAT(DISTINCT b, a ORDER BY a, b) FROM t1;
|
||
GROUP_CONCAT(DISTINCT b, a ORDER BY a, b)
|
||
11,22,32
|
||
SELECT GROUP_CONCAT(DISTINCT a ORDER BY a, b) FROM t1;
|
||
GROUP_CONCAT(DISTINCT a ORDER BY a, b)
|
||
1,2
|
||
SELECT GROUP_CONCAT(DISTINCT b ORDER BY b, a) FROM t1;
|
||
GROUP_CONCAT(DISTINCT b ORDER BY b, a)
|
||
1,2,3
|
||
SELECT GROUP_CONCAT(DISTINCT a, b ORDER BY a) FROM t1;
|
||
GROUP_CONCAT(DISTINCT a, b ORDER BY a)
|
||
11,23,22
|
||
SELECT GROUP_CONCAT(DISTINCT b, a ORDER BY b) FROM t1;
|
||
GROUP_CONCAT(DISTINCT b, a ORDER BY b)
|
||
11,22,32
|
||
DROP TABLE t1, t2, t3;
|
||
CREATE TABLE t1(a INT);
|
||
INSERT INTO t1 VALUES (),();
|
||
SELECT s1.d1 FROM
|
||
(
|
||
SELECT
|
||
t1.a as d1,
|
||
GROUP_CONCAT(DISTINCT t1.a) AS d2
|
||
FROM
|
||
t1 AS t1,
|
||
t1 AS t2
|
||
GROUP BY 1
|
||
) AS s1;
|
||
d1
|
||
NULL
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (a INT);
|
||
CREATE TABLE t2 (a INT);
|
||
INSERT INTO t1 VALUES(1);
|
||
SELECT GROUP_CONCAT(DISTINCT t2.a) FROM t1 LEFT JOIN t2 ON t2.a = t1.a GROUP BY t1.a;
|
||
GROUP_CONCAT(DISTINCT t2.a)
|
||
NULL
|
||
DROP TABLE t1, t2;
|
||
CREATE TABLE t1 (a INT, KEY(a));
|
||
CREATE TABLE t2 (b INT);
|
||
INSERT INTO t1 VALUES (NULL), (8), (2);
|
||
INSERT INTO t2 VALUES (4), (10);
|
||
SELECT 1 FROM t1 WHERE t1.a NOT IN
|
||
(
|
||
SELECT GROUP_CONCAT(DISTINCT t1.a)
|
||
FROM t1 WHERE t1.a IN
|
||
(
|
||
SELECT b FROM t2
|
||
)
|
||
AND NOT t1.a >= (SELECT t1.a FROM t1 LIMIT 1)
|
||
GROUP BY t1.a
|
||
);
|
||
1
|
||
1
|
||
1
|
||
1
|
||
DROP TABLE t1, t2;
|
||
CREATE TABLE t1 (f1 INT);
|
||
INSERT INTO t1 VALUES (),();
|
||
EXPLAIN EXTENDED SELECT 1 FROM
|
||
(SELECT DISTINCT GROUP_CONCAT(td.f1) FROM t1,t1 AS td GROUP BY td.f1) AS d,t1;
|
||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
|
||
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 4 100.00 Using join buffer (flat, BNL join)
|
||
2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort
|
||
2 DERIVED td ALL NULL NULL NULL NULL 2 100.00 Using join buffer (flat, BNL join)
|
||
Warnings:
|
||
Note 1003 select 1 AS `1` from (select distinct group_concat(`test`.`td`.`f1` separator ',') AS `GROUP_CONCAT(td.f1)` from `test`.`t1` join `test`.`t1` `td` group by `test`.`td`.`f1`) `d` join `test`.`t1`
|
||
SELECT 1 FROM
|
||
(SELECT DISTINCT GROUP_CONCAT(td.f1) FROM t1,t1 AS td GROUP BY td.f1) AS d,t1;
|
||
1
|
||
1
|
||
1
|
||
DROP TABLE t1;
|
||
End of 5.0 tests
|
||
#
|
||
# Bug #52397: another crash with explain extended and group_concat
|
||
#
|
||
CREATE TABLE t1 (a INT);
|
||
INSERT INTO t1 VALUES (0), (0);
|
||
EXPLAIN EXTENDED SELECT 1 FROM
|
||
(SELECT GROUP_CONCAT(t1.a ORDER BY t1.a ASC) FROM
|
||
t1 t2, t1 GROUP BY t1.a) AS d;
|
||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 4 100.00
|
||
2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort
|
||
2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using join buffer (flat, BNL join)
|
||
Warnings:
|
||
Note 1003 select 1 AS `1` from (select group_concat(`test`.`t1`.`a` order by `test`.`t1`.`a` ASC separator ',') AS `GROUP_CONCAT(t1.a ORDER BY t1.a ASC)` from `test`.`t1` `t2` join `test`.`t1` group by `test`.`t1`.`a`) `d`
|
||
DROP TABLE t1;
|
||
End of 5.0 tests
|
||
#
|
||
# Bug #54476: crash when group_concat and 'with rollup' in prepared statements
|
||
#
|
||
CREATE TABLE t1 (a INT);
|
||
INSERT INTO t1 VALUES (1), (2);
|
||
PREPARE stmt FROM "SELECT GROUP_CONCAT(t1.a ORDER BY t1.a) FROM t1 JOIN t1 t2 GROUP BY t1.a WITH ROLLUP";
|
||
EXECUTE stmt;
|
||
GROUP_CONCAT(t1.a ORDER BY t1.a)
|
||
1,1
|
||
2,2
|
||
1,1,2,2
|
||
EXECUTE stmt;
|
||
GROUP_CONCAT(t1.a ORDER BY t1.a)
|
||
1,1
|
||
2,2
|
||
1,1,2,2
|
||
DEALLOCATE PREPARE stmt;
|
||
DROP TABLE t1;
|
||
#
|
||
# Bug#57194 group_concat cause crash and/or invalid memory reads with type errors
|
||
#
|
||
CREATE TABLE t1(f1 int);
|
||
INSERT INTO t1 values (0),(0);
|
||
SELECT POLYGON((SELECT 1 FROM (SELECT 1 IN (GROUP_CONCAT(t1.f1)) FROM t1, t1 t GROUP BY t.f1 ) d));
|
||
ERROR 22007: Illegal non geometric '(select 1 from (select (1 = group_concat(`test`.`t1`.`f1` separator ',')) AS `1 IN (GROUP_CONCAT(t1.f1))` from `test`.`t1` join `test`.`t1` `t` group by `test`.`t`.`f1`) `d`)' value found during parsing
|
||
DROP TABLE t1;
|
||
#
|
||
# Bug#58396 group_concat and explain extended are still crashy
|
||
#
|
||
CREATE TABLE t1(a INT);
|
||
EXPLAIN EXTENDED SELECT UPDATEXML('1', a, '1')
|
||
FROM t1 ORDER BY (SELECT GROUP_CONCAT(1) FROM t1);
|
||
ERROR HY000: Only constant XPATH queries are supported
|
||
SHOW WARNINGS;
|
||
Level Code Message
|
||
Error 1105 Only constant XPATH queries are supported
|
||
DROP TABLE t1;
|
||
End of 5.1 tests
|
||
DROP TABLE IF EXISTS t1, t2;
|
||
CREATE TABLE t1 (a VARCHAR(6), b INT);
|
||
CREATE TABLE t2 (a VARCHAR(6), b INT);
|
||
INSERT INTO t1 VALUES ('111111', 1);
|
||
INSERT INTO t1 VALUES ('222222', 2);
|
||
INSERT INTO t1 VALUES ('333333', 3);
|
||
INSERT INTO t1 VALUES ('444444', 4);
|
||
INSERT INTO t1 VALUES ('555555', 5);
|
||
SET group_concat_max_len = 5;
|
||
SET @old_sql_mode = @@sql_mode, @@sql_mode = 'traditional';
|
||
SELECT GROUP_CONCAT(a), b FROM t1 GROUP BY b LIMIT 3;
|
||
GROUP_CONCAT(a) b
|
||
11111 1
|
||
22222 2
|
||
33333 3
|
||
Warnings:
|
||
Warning 1260 Row 1 was cut by GROUP_CONCAT()
|
||
Warning 1260 Row 2 was cut by GROUP_CONCAT()
|
||
Warning 1260 Row 3 was cut by GROUP_CONCAT()
|
||
INSERT INTO t2 SELECT GROUP_CONCAT(a), b FROM t1 GROUP BY b;
|
||
ERROR HY000: Row 1 was cut by GROUP_CONCAT()
|
||
UPDATE t1 SET a = '11111' WHERE b = 1;
|
||
UPDATE t1 SET a = '22222' WHERE b = 2;
|
||
INSERT INTO t2 SELECT GROUP_CONCAT(a), b FROM t1 GROUP BY b;
|
||
ERROR HY000: Row 3 was cut by GROUP_CONCAT()
|
||
SET group_concat_max_len = DEFAULT;
|
||
SET @@sql_mode = @old_sql_mode;
|
||
DROP TABLE t1, t2;
|
||
create table t1 (a char(1) character set utf8);
|
||
insert into t1 values ('a'),('b');
|
||
select 1 from t1 where a in (select group_concat(a) from t1);
|
||
1
|
||
drop table t1;
|
||
CREATE TABLE t1 (f1 VARCHAR(10)) ENGINE=MyISAM;
|
||
INSERT INTO t1 VALUES ('a'),('b');
|
||
CREATE TABLE t2 (f2 VARCHAR(10)) ENGINE=MyISAM;
|
||
INSERT INTO t2 VALUES ('c');
|
||
CREATE TABLE t3 (f3 VARCHAR(10)) ENGINE=MyISAM;
|
||
INSERT INTO t3 VALUES ('d'),('e');
|
||
SELECT GROUP_CONCAT( f2 ORDER BY ( f2 IN ( SELECT f1 FROM t1 WHERE f1 <= f2 ) ) ) AS field
|
||
FROM ( SELECT * FROM t2 ) AS sq2, t3
|
||
ORDER BY field;
|
||
field
|
||
c,c
|
||
drop table t3, t2, t1;
|
||
#
|
||
# MDEV-7821 - Server crashes in Item_func_group_concat::fix_fields on 2nd
|
||
# execution of PS
|
||
#
|
||
CREATE TABLE t1(a INT);
|
||
INSERT INTO t1 VALUES(1),(2);
|
||
PREPARE stmt FROM "SELECT GROUP_CONCAT(t1a.a ORDER BY 1, t1a.a=0) FROM t1 AS t1a, t1 AS t1b GROUP BY t1a.a";
|
||
EXECUTE stmt;
|
||
GROUP_CONCAT(t1a.a ORDER BY 1, t1a.a=0)
|
||
1,1
|
||
2,2
|
||
EXECUTE stmt;
|
||
GROUP_CONCAT(t1a.a ORDER BY 1, t1a.a=0)
|
||
1,1
|
||
2,2
|
||
DROP TABLE t1;
|