96 lines
3.1 KiB
Plaintext
96 lines
3.1 KiB
Plaintext
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set default_storage_engine=ndb;
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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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Warnings:
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Warning 1478 Table storage engine 'ndbcluster' does not support the create option 'Binlog of table with BLOB attribute and no PK'
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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], [1, 1], [2, 2]]}]
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drop table t2;
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create table t (c varchar(20));
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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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select group_concat(c order by c) from t;
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group_concat(c order by c)
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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)) from t;
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json_quote(group_concat(c order by c))
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"\b,\t,\n,\f,\r,\u0010,\",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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Warnings:
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Warning 1478 Table storage engine 'ndbcluster' does not support the create option 'Binlog of table with BLOB attribute and no PK'
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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));
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Warnings:
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Warning 1478 Table storage engine 'ndbcluster' does not support the create option 'Binlog of table with BLOB attribute and no PK'
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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=ndbcluster DEFAULT CHARSET=latin1
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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 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 2,2,7,7,[a,b,c]
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insert into t values (NULL, NULL);
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drop table t;
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