108 lines
3.5 KiB
Plaintext
108 lines
3.5 KiB
Plaintext
set default_storage_engine=innodb;
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# ----------------------------------------------------------------------
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# Test of aggregate function GROUP_CONCAT
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# ----------------------------------------------------------------------
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create table t2(j json);
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insert into t2 values (json_array(ST_GeomFromText('LineString(0 0, 1 1, 2 2)')));
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select group_concat(j order by j) from t2;
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group_concat(j order by j)
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[{"type": "LineString", "coordinates": [[0.0, 0.0], [1.0, 1.0], [2.0, 2.0]]}]
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drop table t2;
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create table t (c varchar(20)) charset utf8mb4;
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insert into t values ('\\');
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select char_length(c) from t;
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char_length(c)
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1
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insert into t values (X'0C');
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select sum(char_length(c)) from t;
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sum(char_length(c))
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2
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insert into t values ('"');
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select sum(char_length(c)) from t;
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sum(char_length(c))
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3
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insert into t values ('\a');
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select sum(char_length(c)) from t;
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sum(char_length(c))
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4
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insert into t values ('\b');
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select sum(char_length(c)) from t;
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sum(char_length(c))
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5
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insert into t values ('\t');
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select sum(char_length(c)) from t;
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sum(char_length(c))
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6
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insert into t values ('\n');
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select sum(char_length(c)) from t;
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sum(char_length(c))
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7
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insert into t values ('\r');
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select sum(char_length(c)) from t;
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sum(char_length(c))
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8
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insert into t values (X'10');
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select sum(char_length(c)) from t;
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sum(char_length(c))
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9
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# '\b' and X'10' order equal in the default collation, so order on
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# hex(c) as a tie-breaker to get stable results.
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select group_concat(c order by c, hex(c)) from t;
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group_concat(c order by c, hex(c))
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,, ,
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, ,
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,",\,a
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select char_length(group_concat(c)) from t;
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char_length(group_concat(c))
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17
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select json_quote(group_concat(c order by c, hex(c))) from t;
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json_quote(group_concat(c order by c, hex(c)))
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"\b,\u0010,\t,\n,\f,\r,\",\\,a"
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select char_length(json_quote(group_concat(c))) from t;
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char_length(json_quote(group_concat(c)))
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31
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select convert(group_concat(c) using utf8mb4) =
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json_unquote(group_concat(c)) as should_be_equal from t;
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should_be_equal
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1
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delete from t;
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alter table t add column (j json);
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insert into t values (NULL, NULL);
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select json_quote(c), json_quote(j) from t;
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json_quote(c) json_quote(j)
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NULL NULL
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select json_unquote(c), json_unquote(j) from t;
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json_unquote(c) json_unquote(j)
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NULL NULL
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drop table t;
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create table t(j json, c varchar(20)) charset utf8mb4;
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show create table t;
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Table Create Table
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t CREATE TABLE `t` (
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`j` json DEFAULT NULL,
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`c` varchar(20) DEFAULT NULL
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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insert into t values (cast('[1,2,3]' as json), '[a,b,c]');
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insert into t values (cast(7 as json), '7'), (cast(2 as json), '2');
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insert into t values (cast(7 as json), '7'), (cast(2 as json), '2');
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select group_concat(j), group_concat(distinct j), group_concat(c) from t;
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group_concat(j) group_concat(distinct j) group_concat(c)
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[1, 2, 3],7,2,7,2 [1, 2, 3],2,7 [a,b,c],7,2,7,2
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select group_concat(j order by j), group_concat(distinct j order by j), group_concat(c order by c) from t;
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group_concat(j order by j) group_concat(distinct j order by j) group_concat(c order by c)
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[1, 2, 3],2,2,7,7 [1, 2, 3],2,7 [a,b,c],2,2,7,7
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insert into t values (NULL, NULL);
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select group_concat(j), group_concat(distinct j), group_concat(c) from t;
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group_concat(j) group_concat(distinct j) group_concat(c)
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[1, 2, 3],7,2,7,2 [1, 2, 3],2,7 [a,b,c],7,2,7,2
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#
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# Bug#22992666 NULL VALUE IN JSON COLUMN CORRUPTS GROUP_CONCAT
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# WITH ORDER BY CLAUSE
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#
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SELECT GROUP_CONCAT(j ORDER BY j) AS c1,
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GROUP_CONCAT(DISTINCT j ORDER BY j) AS c2,
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GROUP_CONCAT(c ORDER BY c) AS c3
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FROM t;
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c1 c2 c3
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[1, 2, 3],2,2,7,7 [1, 2, 3],2,7 [a,b,c],2,2,7,7
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drop table t;
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