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Name	Size	Permission
json_agg.result	34.15 KB	-rw-r--r--
json_client_innodb.result	1.29 KB	-rw-r--r--
json_client_ndb.result	1.43 KB	-rw-r--r--
json_conversions.result	1.57 MB	-rw-r--r--
json_ddl_innodb.result	2.86 KB	-rw-r--r--
json_ddl_ndb.result	3.54 KB	-rw-r--r--
json_fulltext_innodb.result	7 KB	-rw-r--r--
json_functions_innodb.result	260.05 KB	-rw-r--r--
json_functions_ndb.result	271.62 KB	-rw-r--r--
json_gcol_innodb.result	10.8 KB	-rw-r--r--
json_group_concat_innodb.resul...	3.02 KB	-rw-r--r--
json_group_concat_ndb.result	3.09 KB	-rw-r--r--
json_innodb.result	8.52 KB	-rw-r--r--
json_insert_innodb.result	71.19 KB	-rw-r--r--
json_insert_ndb.result	71.59 KB	-rw-r--r--
json_no_table.result	174.17 KB	-rw-r--r--

Code Editor : json_agg.result

#
# Setup test.
#
CREATE TABLE t1 (a int, k int, b VARCHAR(10));
INSERT INTO t1 VALUES
(1, 1, "alfa"),
(1, 2, null),
(2, 3, "doi"),
(1, 4, "unu"),
(3, 5, "trei"),
(4, 6, null),
(4, 7, null),
(1, 8, "one");
#
# Test JSON_ARRAYAGG.
#
FLUSH STATUS;
SELECT a, JSON_ARRAYAGG(b) FROM t1 GROUP BY a;
a	JSON_ARRAYAGG(b)
1	["alfa", null, "unu", "one"]
2	["doi"]
3	["trei"]
4	[null, null]
SHOW SESSION STATUS LIKE 'Handler_update%';
Variable_name	Value
Handler_update	0
SELECT SQL_BIG_RESULT  a, JSON_ARRAYAGG(b) FROM t1 GROUP BY a;
a	JSON_ARRAYAGG(b)
1	["alfa", null, "unu", "one"]
2	["doi"]
3	["trei"]
4	[null, null]
SELECT SQL_SMALL_RESULT  a, JSON_ARRAYAGG(b) FROM t1 GROUP BY a;
a	JSON_ARRAYAGG(b)
1	["alfa", null, "unu", "one"]
2	["doi"]
3	["trei"]
4	[null, null]
SHOW SESSION STATUS LIKE 'Handler_update%';
Variable_name	Value
Handler_update	0
SELECT SQL_BUFFER_RESULT  a, JSON_ARRAYAGG(b) FROM t1 GROUP BY a;
a	JSON_ARRAYAGG(b)
1	["alfa", null, "unu", "one"]
2	["doi"]
3	["trei"]
4	[null, null]
SHOW SESSION STATUS LIKE 'Handler_update%';
Variable_name	Value
Handler_update	0
SELECT JSON_ARRAYAGG(b) FROM t1;
JSON_ARRAYAGG(b)
["alfa", null, "doi", "unu", "trei", null, null, "one"]
SELECT SQL_BIG_RESULT JSON_ARRAYAGG(b) FROM t1;
JSON_ARRAYAGG(b)
["alfa", null, "doi", "unu", "trei", null, null, "one"]
SELECT SQL_SMALL_RESULT JSON_ARRAYAGG(b) FROM t1;
JSON_ARRAYAGG(b)
["alfa", null, "doi", "unu", "trei", null, null, "one"]
SELECT SQL_BUFFER_RESULT JSON_ARRAYAGG(b) FROM t1;
JSON_ARRAYAGG(b)
["alfa", null, "doi", "unu", "trei", null, null, "one"]
PREPARE p1 FROM "SELECT a, JSON_ARRAYAGG(b) FROM t1 GROUP BY a";
EXECUTE p1;
a	JSON_ARRAYAGG(b)
1	["alfa", null, "unu", "one"]
2	["doi"]
3	["trei"]
4	[null, null]
EXECUTE p1;
a	JSON_ARRAYAGG(b)
1	["alfa", null, "unu", "one"]
2	["doi"]
3	["trei"]
4	[null, null]
deallocate prepare p1;
PREPARE p3 FROM
"SELECT SQL_BUFFER_RESULT  a, JSON_ARRAYAGG(b) FROM t1 GROUP BY a";
EXECUTE p3;
a	JSON_ARRAYAGG(b)
1	["alfa", null, "unu", "one"]
2	["doi"]
3	["trei"]
4	[null, null]
EXECUTE p3;
a	JSON_ARRAYAGG(b)
1	["alfa", null, "unu", "one"]
2	["doi"]
3	["trei"]
4	[null, null]
deallocate prepare p3;
PREPARE p4 FROM "SELECT JSON_ARRAYAGG(b) FROM t1";
EXECUTE p4;
JSON_ARRAYAGG(b)
["alfa", null, "doi", "unu", "trei", null, null, "one"]
EXECUTE p4;
JSON_ARRAYAGG(b)
["alfa", null, "doi", "unu", "trei", null, null, "one"]
deallocate prepare p4;
SELECT JSON_MERGE_PRESERVE(JSON_ARRAYAGG(b), '[true, false]') FROM t1;
JSON_MERGE_PRESERVE(JSON_ARRAYAGG(b), '[true, false]')
["alfa", null, "doi", "unu", "trei", null, null, "one", true, false]
PREPARE p1 FROM
"SELECT a, JSON_MERGE_PRESERVE(JSON_ARRAYAGG(b), '[true, false]') FROM t1 GROUP BY a";
EXECUTE p1;
a	JSON_MERGE_PRESERVE(JSON_ARRAYAGG(b), '[true, false]')
1	["alfa", null, "unu", "one", true, false]
2	["doi", true, false]
3	["trei", true, false]
4	[null, null, true, false]
EXECUTE p1;
a	JSON_MERGE_PRESERVE(JSON_ARRAYAGG(b), '[true, false]')
1	["alfa", null, "unu", "one", true, false]
2	["doi", true, false]
3	["trei", true, false]
4	[null, null, true, false]
deallocate prepare p1;
PREPARE p4 FROM
"SELECT JSON_MERGE_PRESERVE(JSON_ARRAYAGG(b), '[true, false]') FROM t1";
EXECUTE p4;
JSON_MERGE_PRESERVE(JSON_ARRAYAGG(b), '[true, false]')
["alfa", null, "doi", "unu", "trei", null, null, "one", true, false]
EXECUTE p4;
JSON_MERGE_PRESERVE(JSON_ARRAYAGG(b), '[true, false]')
["alfa", null, "doi", "unu", "trei", null, null, "one", true, false]
deallocate prepare p4;
ANALYZE TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
EXPLAIN SELECT a, JSON_ARRAYAGG(b) FROM t1 GROUP BY a;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	NULL	ALL	NULL	NULL	NULL	NULL	8	100.00	Using filesort
Warnings:
Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,json_arrayagg(`test`.`t1`.`b`) AS `JSON_ARRAYAGG(b)` from `test`.`t1` group by `test`.`t1`.`a`
EXPLAIN SELECT JSON_ARRAYAGG(b) FROM t1;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	NULL	ALL	NULL	NULL	NULL	NULL	8	100.00	NULL
Warnings:
Note	1003	/* select#1 */ select json_arrayagg(`test`.`t1`.`b`) AS `JSON_ARRAYAGG(b)` from `test`.`t1`
EXPLAIN FORMAT=json SELECT a, JSON_ARRAYAGG(b) FROM t1 GROUP BY a;
EXPLAIN
{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "10.60"
    },
    "grouping_operation": {
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "8.00"
      },
      "table": {
        "table_name": "t1",
        "access_type": "ALL",
        "rows_examined_per_scan": 8,
        "rows_produced_per_join": 8,
        "filtered": "100.00",
        "cost_info": {
          "read_cost": "1.00",
          "eval_cost": "1.60",
          "prefix_cost": "2.60",
          "data_read_per_join": "192"
        },
        "used_columns": [
          "a",
          "b"
        ]
      }
    }
  }
}
Warnings:
Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,json_arrayagg(`test`.`t1`.`b`) AS `JSON_ARRAYAGG(b)` from `test`.`t1` group by `test`.`t1`.`a`
EXPLAIN FORMAT=json SELECT SQL_BIG_RESULT  a, JSON_ARRAYAGG(b)
FROM t1
GROUP BY a;
EXPLAIN
{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "10.60"
    },
    "grouping_operation": {
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "8.00"
      },
      "table": {
        "table_name": "t1",
        "access_type": "ALL",
        "rows_examined_per_scan": 8,
        "rows_produced_per_join": 8,
        "filtered": "100.00",
        "cost_info": {
          "read_cost": "1.00",
          "eval_cost": "1.60",
          "prefix_cost": "2.60",
          "data_read_per_join": "192"
        },
        "used_columns": [
          "a",
          "b"
        ]
      }
    }
  }
}
Warnings:
Note	1003	/* select#1 */ select sql_big_result `test`.`t1`.`a` AS `a`,json_arrayagg(`test`.`t1`.`b`) AS `JSON_ARRAYAGG(b)` from `test`.`t1` group by `test`.`t1`.`a`
EXPLAIN FORMAT=json SELECT SQL_SMALL_RESULT  a, JSON_ARRAYAGG(b)
FROM t1
GROUP BY a;
EXPLAIN
{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "10.60"
    },
    "grouping_operation": {
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "8.00"
      },
      "table": {
        "table_name": "t1",
        "access_type": "ALL",
        "rows_examined_per_scan": 8,
        "rows_produced_per_join": 8,
        "filtered": "100.00",
        "cost_info": {
          "read_cost": "1.00",
          "eval_cost": "1.60",
          "prefix_cost": "2.60",
          "data_read_per_join": "192"
        },
        "used_columns": [
          "a",
          "b"
        ]
      }
    }
  }
}
Warnings:
Note	1003	/* select#1 */ select sql_small_result `test`.`t1`.`a` AS `a`,json_arrayagg(`test`.`t1`.`b`) AS `JSON_ARRAYAGG(b)` from `test`.`t1` group by `test`.`t1`.`a`
EXPLAIN FORMAT=json SELECT SQL_BUFFER_RESULT  a, JSON_ARRAYAGG(b)
FROM t1
GROUP BY a;
EXPLAIN
{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "10.60"
    },
    "grouping_operation": {
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "8.00"
      },
      "buffer_result": {
        "using_temporary_table": true,
        "table": {
          "table_name": "t1",
          "access_type": "ALL",
          "rows_examined_per_scan": 8,
          "rows_produced_per_join": 8,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "1.00",
            "eval_cost": "1.60",
            "prefix_cost": "2.60",
            "data_read_per_join": "192"
          },
          "used_columns": [
            "a",
            "b"
          ]
        }
      }
    }
  }
}
Warnings:
Note	1003	/* select#1 */ select sql_buffer_result `test`.`t1`.`a` AS `a`,json_arrayagg(`test`.`t1`.`b`) AS `JSON_ARRAYAGG(b)` from `test`.`t1` group by `test`.`t1`.`a`
EXPLAIN FORMAT=json SELECT JSON_ARRAYAGG(b) FROM t1;
EXPLAIN
{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "2.60"
    },
    "table": {
      "table_name": "t1",
      "access_type": "ALL",
      "rows_examined_per_scan": 8,
      "rows_produced_per_join": 8,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "1.00",
        "eval_cost": "1.60",
        "prefix_cost": "2.60",
        "data_read_per_join": "192"
      },
      "used_columns": [
        "b"
      ]
    }
  }
}
Warnings:
Note	1003	/* select#1 */ select json_arrayagg(`test`.`t1`.`b`) AS `JSON_ARRAYAGG(b)` from `test`.`t1`
EXPLAIN FORMAT=json SELECT SQL_BIG_RESULT JSON_ARRAYAGG(b) FROM t1;
EXPLAIN
{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "2.60"
    },
    "table": {
      "table_name": "t1",
      "access_type": "ALL",
      "rows_examined_per_scan": 8,
      "rows_produced_per_join": 8,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "1.00",
        "eval_cost": "1.60",
        "prefix_cost": "2.60",
        "data_read_per_join": "192"
      },
      "used_columns": [
        "b"
      ]
    }
  }
}
Warnings:
Note	1003	/* select#1 */ select sql_big_result json_arrayagg(`test`.`t1`.`b`) AS `JSON_ARRAYAGG(b)` from `test`.`t1`
EXPLAIN FORMAT=json SELECT SQL_SMALL_RESULT JSON_ARRAYAGG(b) FROM t1;
EXPLAIN
{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "2.60"
    },
    "table": {
      "table_name": "t1",
      "access_type": "ALL",
      "rows_examined_per_scan": 8,
      "rows_produced_per_join": 8,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "1.00",
        "eval_cost": "1.60",
        "prefix_cost": "2.60",
        "data_read_per_join": "192"
      },
      "used_columns": [
        "b"
      ]
    }
  }
}
Warnings:
Note	1003	/* select#1 */ select sql_small_result json_arrayagg(`test`.`t1`.`b`) AS `JSON_ARRAYAGG(b)` from `test`.`t1`
EXPLAIN FORMAT=json SELECT SQL_BUFFER_RESULT JSON_ARRAYAGG(b) FROM t1;
EXPLAIN
{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "2.60"
    },
    "buffer_result": {
      "using_temporary_table": true,
      "table": {
        "table_name": "t1",
        "access_type": "ALL",
        "rows_examined_per_scan": 8,
        "rows_produced_per_join": 8,
        "filtered": "100.00",
        "cost_info": {
          "read_cost": "1.00",
          "eval_cost": "1.60",
          "prefix_cost": "2.60",
          "data_read_per_join": "192"
        },
        "used_columns": [
          "b"
        ]
      }
    }
  }
}
Warnings:
Note	1003	/* select#1 */ select sql_buffer_result json_arrayagg(`test`.`t1`.`b`) AS `JSON_ARRAYAGG(b)` from `test`.`t1`
SELECT a, JSON_ARRAYAGG(b) FROM t1 GROUP BY a WITH ROLLUP;
a	JSON_ARRAYAGG(b)
1	["alfa", null, "unu", "one"]
2	["doi"]
3	["trei"]
4	[null, null]
NULL	["alfa", null, "unu", "one", "doi", "trei", null, null]
SELECT a, JSON_ARRAYAGG(b) as jarray
FROM t1
GROUP BY a
HAVING jarray= JSON_ARRAY("trei");
a	jarray
3	["trei"]
#
# Test JSON_OBJECTAGG.
#
FLUSH STATUS;
SELECT a, JSON_OBJECTAGG(k, b) FROM t1 GROUP BY a;
a	JSON_OBJECTAGG(k, b)
1	{"1": "alfa", "2": null, "4": "unu", "8": "one"}
2	{"3": "doi"}
3	{"5": "trei"}
4	{"6": null, "7": null}
SHOW SESSION STATUS LIKE 'Handler_update%';
Variable_name	Value
Handler_update	0
SELECT JSON_OBJECTAGG(k, b) FROM t1;
JSON_OBJECTAGG(k, b)
{"1": "alfa", "2": null, "3": "doi", "4": "unu", "5": "trei", "6": null, "7": null, "8": "one"}
SHOW SESSION STATUS LIKE 'Handler_update%';
Variable_name	Value
Handler_update	0
PREPARE p1 FROM "SELECT a, JSON_OBJECTAGG(k, b) FROM t1 GROUP BY a";
EXECUTE p1;
a	JSON_OBJECTAGG(k, b)
1	{"1": "alfa", "2": null, "4": "unu", "8": "one"}
2	{"3": "doi"}
3	{"5": "trei"}
4	{"6": null, "7": null}
EXECUTE p1;
a	JSON_OBJECTAGG(k, b)
1	{"1": "alfa", "2": null, "4": "unu", "8": "one"}
2	{"3": "doi"}
3	{"5": "trei"}
4	{"6": null, "7": null}
deallocate prepare p1;
PREPARE p4 FROM "SELECT JSON_OBJECTAGG(k, b) FROM t1";
EXECUTE p4;
JSON_OBJECTAGG(k, b)
{"1": "alfa", "2": null, "3": "doi", "4": "unu", "5": "trei", "6": null, "7": null, "8": "one"}
EXECUTE p4;
JSON_OBJECTAGG(k, b)
{"1": "alfa", "2": null, "3": "doi", "4": "unu", "5": "trei", "6": null, "7": null, "8": "one"}
deallocate prepare p4;
SELECT a, JSON_MERGE_PRESERVE(JSON_OBJECTAGG(k, b), '[true, false]') FROM t1 GROUP BY a;
a	JSON_MERGE_PRESERVE(JSON_OBJECTAGG(k, b), '[true, false]')
1	[{"1": "alfa", "2": null, "4": "unu", "8": "one"}, true, false]
2	[{"3": "doi"}, true, false]
3	[{"5": "trei"}, true, false]
4	[{"6": null, "7": null}, true, false]
SELECT JSON_MERGE_PRESERVE(JSON_OBJECTAGG(k, b), '[true, false]') FROM t1;
JSON_MERGE_PRESERVE(JSON_OBJECTAGG(k, b), '[true, false]')
[{"1": "alfa", "2": null, "3": "doi", "4": "unu", "5": "trei", "6": null, "7": null, "8": "one"}, true, false]
PREPARE p1 FROM
"SELECT a, JSON_MERGE_PRESERVE(JSON_OBJECTAGG(k, b), '[true, false]')
FROM t1
GROUP BY a";
EXECUTE p1;
a	JSON_MERGE_PRESERVE(JSON_OBJECTAGG(k, b), '[true, false]')
1	[{"1": "alfa", "2": null, "4": "unu", "8": "one"}, true, false]
2	[{"3": "doi"}, true, false]
3	[{"5": "trei"}, true, false]
4	[{"6": null, "7": null}, true, false]
EXECUTE p1;
a	JSON_MERGE_PRESERVE(JSON_OBJECTAGG(k, b), '[true, false]')
1	[{"1": "alfa", "2": null, "4": "unu", "8": "one"}, true, false]
2	[{"3": "doi"}, true, false]
3	[{"5": "trei"}, true, false]
4	[{"6": null, "7": null}, true, false]
deallocate prepare p1;
PREPARE p4 FROM
"SELECT JSON_MERGE_PRESERVE(JSON_OBJECTAGG(k, b), '[true, false]') FROM t1";
EXECUTE p4;
JSON_MERGE_PRESERVE(JSON_OBJECTAGG(k, b), '[true, false]')
[{"1": "alfa", "2": null, "3": "doi", "4": "unu", "5": "trei", "6": null, "7": null, "8": "one"}, true, false]
EXECUTE p4;
JSON_MERGE_PRESERVE(JSON_OBJECTAGG(k, b), '[true, false]')
[{"1": "alfa", "2": null, "3": "doi", "4": "unu", "5": "trei", "6": null, "7": null, "8": "one"}, true, false]
deallocate prepare p4;
ANALYZE TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
EXPLAIN SELECT a, JSON_OBJECTAGG(k, b) FROM t1 GROUP BY a;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	NULL	ALL	NULL	NULL	NULL	NULL	8	100.00	Using filesort
Warnings:
Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,json_objectagg(`test`.`t1`.`k`,`test`.`t1`.`b`) AS `JSON_OBJECTAGG(k, b)` from `test`.`t1` group by `test`.`t1`.`a`
EXPLAIN SELECT JSON_OBJECTAGG(k, b) FROM t1;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	NULL	ALL	NULL	NULL	NULL	NULL	8	100.00	NULL
Warnings:
Note	1003	/* select#1 */ select json_objectagg(`test`.`t1`.`k`,`test`.`t1`.`b`) AS `JSON_OBJECTAGG(k, b)` from `test`.`t1`
EXPLAIN FORMAT=json SELECT a, JSON_OBJECTAGG(k, b) FROM t1 GROUP BY a;
EXPLAIN
{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "10.60"
    },
    "grouping_operation": {
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "8.00"
      },
      "table": {
        "table_name": "t1",
        "access_type": "ALL",
        "rows_examined_per_scan": 8,
        "rows_produced_per_join": 8,
        "filtered": "100.00",
        "cost_info": {
          "read_cost": "1.00",
          "eval_cost": "1.60",
          "prefix_cost": "2.60",
          "data_read_per_join": "192"
        },
        "used_columns": [
          "a",
          "k",
          "b"
        ]
      }
    }
  }
}
Warnings:
Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,json_objectagg(`test`.`t1`.`k`,`test`.`t1`.`b`) AS `JSON_OBJECTAGG(k, b)` from `test`.`t1` group by `test`.`t1`.`a`
EXPLAIN FORMAT=json SELECT JSON_OBJECTAGG(k, b) FROM t1;
EXPLAIN
{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "2.60"
    },
    "table": {
      "table_name": "t1",
      "access_type": "ALL",
      "rows_examined_per_scan": 8,
      "rows_produced_per_join": 8,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "1.00",
        "eval_cost": "1.60",
        "prefix_cost": "2.60",
        "data_read_per_join": "192"
      },
      "used_columns": [
        "k",
        "b"
      ]
    }
  }
}
Warnings:
Note	1003	/* select#1 */ select json_objectagg(`test`.`t1`.`k`,`test`.`t1`.`b`) AS `JSON_OBJECTAGG(k, b)` from `test`.`t1`
SELECT a, JSON_OBJECTAGG(k, b) FROM t1 GROUP BY a WITH ROLLUP;
a	JSON_OBJECTAGG(k, b)
1	{"1": "alfa", "2": null, "4": "unu", "8": "one"}
2	{"3": "doi"}
3	{"5": "trei"}
4	{"6": null, "7": null}
NULL	{"1": "alfa", "2": null, "3": "doi", "4": "unu", "5": "trei", "6": null, "7": null, "8": "one"}
SELECT a, JSON_OBJECTAGG(k, b) as jobject
FROM t1
GROUP BY a
HAVING jobject = JSON_OBJECT(3, "doi");
a	jobject
2	{"3": "doi"}
#
# NULL values.
#
SELECT a, JSON_ARRAYAGG(null) FROM t1 GROUP BY a;
a	JSON_ARRAYAGG(null)
1	[null, null, null, null]
2	[null]
3	[null]
4	[null, null]
SELECT JSON_ARRAYAGG(null) FROM t1;
JSON_ARRAYAGG(null)
[null, null, null, null, null, null, null, null]
SELECT a, JSON_OBJECTAGG(k, null) FROM t1 GROUP BY a;
a	JSON_OBJECTAGG(k, null)
1	{"1": null, "2": null, "4": null, "8": null}
2	{"3": null}
3	{"5": null}
4	{"6": null, "7": null}
SELECT JSON_OBJECTAGG(k, null) FROM t1;
JSON_OBJECTAGG(k, null)
{"1": null, "2": null, "3": null, "4": null, "5": null, "6": null, "7": null, "8": null}
SELECT a, JSON_OBJECTAGG(null, b) FROM t1 GROUP BY a;
ERROR 22032: JSON documents may not contain NULL member names.
SELECT JSON_OBJECTAGG(null, b) FROM t1;
ERROR 22032: JSON documents may not contain NULL member names.
#
# Coverage test for fix_fields: Disable_semijoin_flattening.
#
CREATE TABLE t(a INT);
ANALYZE TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
EXPLAIN format=json SELECT (SELECT 1 FROM t WHERE JSON_ARRAYAGG(1 IN (SELECT 1 FROM t)));
EXPLAIN
{
  "query_block": {
    "select_id": 1,
    "message": "No tables used",
    "optimized_away_subqueries": [
      {
        "dependent": true,
        "cacheable": false,
        "query_block": {
          "select_id": 2,
          "cost_info": {
            "query_cost": "1.20"
          },
          "table": {
            "table_name": "t",
            "access_type": "ALL",
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 1,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "1.00",
              "eval_cost": "0.20",
              "prefix_cost": "1.20",
              "data_read_per_join": "8"
            },
            "attached_condition": "json_arrayagg(<in_optimizer>(1,<exists>(/* select#3 */ select 1 from `test`.`t` where 1)))"
          },
          "optimized_away_subqueries": [
            {
              "dependent": false,
              "cacheable": true,
              "query_block": {
                "select_id": 3,
                "cost_info": {
                  "query_cost": "1.20"
                },
                "table": {
                  "table_name": "t",
                  "access_type": "ALL",
                  "rows_examined_per_scan": 1,
                  "rows_produced_per_join": 1,
                  "filtered": "100.00",
                  "cost_info": {
                    "read_cost": "1.00",
                    "eval_cost": "0.20",
                    "prefix_cost": "1.20",
                    "data_read_per_join": "8"
                  }
                }
              }
            }
          ]
        }
      }
    ]
  }
}
Warnings:
Note	1003	/* select#1 */ select (/* select#2 */ select 1 from `test`.`t` where json_arrayagg(<in_optimizer>(1,<exists>(/* select#3 */ select 1 from `test`.`t` where 1)))) AS `(SELECT 1 FROM t WHERE JSON_ARRAYAGG(1 IN (SELECT 1 FROM t)))`
SELECT (SELECT 1 FROM t WHERE JSON_ARRAYAGG(1 IN (SELECT 1 FROM t)));
(SELECT 1 FROM t WHERE JSON_ARRAYAGG(1 IN (SELECT 1 FROM t)))
NULL
DROP TABLE t;
#
# Coverage test for fix_fields: check_cols.
#
SELECT JSON_ARRAYAGG((SELECT 1, 1));
ERROR 21000: Operand should contain 1 column(s)
#
# Coverage test for fix_fields: resolve_type.
#
CREATE TABLE t2(gid int, a int);
SELECT JSON_ARRAYAGG(ST_PointFromText('POINT(10 10)')) FROM t2;
ERROR HY000: Incorrect arguments to json_arrayagg(
#
# Coverage test for fix_fields: check_sum_func.
#
SELECT (SELECT JSON_ARRAYAGG(COUNT(a)) FROM t2)  FROM t1;
ERROR HY000: Invalid use of group function
DROP TABLE t2;
#
# Empty table.
#
TRUNCATE TABLE t1;
SELECT a, JSON_ARRAYAGG(b) FROM t1 GROUP BY a;
a	JSON_ARRAYAGG(b)
SELECT JSON_ARRAYAGG(b) FROM t1;
JSON_ARRAYAGG(b)
NULL
SELECT a, JSON_OBJECTAGG(k, b) FROM t1 GROUP BY a;
a	JSON_OBJECTAGG(k, b)
SELECT JSON_OBJECTAGG(k, b) FROM t1;
JSON_OBJECTAGG(k, b)
NULL
#
# Tests for max_allowed_packet.
#
CREATE TABLE t(id INT PRIMARY KEY AUTO_INCREMENT, x INT);
INSERT INTO t(x) VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
INSERT INTO t(x) SELECT t1.x from t t1, t t2, t t3;
SET GLOBAL net_buffer_length = 1024;
SET GLOBAL max_allowed_packet = 1024;
SELECT JSON_ARRAYAGG(x) FROM t;
JSON_ARRAYAGG(x)
NULL
Warnings:
Warning	1301	Result of json_arrayagg(() was larger than max_allowed_packet (1024) - truncated
SELECT JSON_OBJECTAGG(id, x) FROM t;
JSON_OBJECTAGG(id, x)
NULL
Warnings:
Warning	1301	Result of json_objectagg(() was larger than max_allowed_packet (1024) - truncated
SELECT id % 2 AS i, JSON_ARRAYAGG(x) FROM t GROUP BY i;
i	JSON_ARRAYAGG(x)
0	NULL
1	NULL
Warnings:
Warning	1301	Result of json_arrayagg(() was larger than max_allowed_packet (1024) - truncated
Warning	1301	Result of json_arrayagg(() was larger than max_allowed_packet (1024) - truncated
SELECT id % 2 AS i, JSON_OBJECTAGG(id, x) FROM t GROUP BY i;
i	JSON_OBJECTAGG(id, x)
0	NULL
1	NULL
Warnings:
Warning	1301	Result of json_objectagg(() was larger than max_allowed_packet (1024) - truncated
Warning	1301	Result of json_objectagg(() was larger than max_allowed_packet (1024) - truncated
SET GLOBAL max_allowed_packet = default;
SET GLOBAL net_buffer_length = default;
DROP TABLE t;
#
# Cleanup test.
#
DROP TABLE t1;
#
# Bug #24368053
# WL#7987: ASSERTION `!TABLE || (!TABLE->WRITE_SET || BITMAP_IS_SET(TABLE-> ...
#
CREATE TABLE C(col_int int);
CREATE TABLE CC(col_int int);
INSERT INTO CC VALUES (1),(2),(3);
SELECT JSON_OBJECTAGG(table1.`col_int` ,table1.`col_int`) AS field2,
(SELECT JSON_ARRAYAGG(SUBQUERY2_t1.`col_int`)
FROM CC AS SUBQUERY2_t1
WHERE SUBQUERY2_t1.`col_int` <> table1.`col_int`) AS field5
FROM (CC AS table1)
WHERE (table1.`col_int` <> ALL (SELECT SUBQUERY4_t1.`col_int`
       FROM (CC AS SUBQUERY4_t1 STRAIGHT_JOIN C)))
GROUP BY
field5;
field2	field5
{"3": 3}	[1, 2]
{"2": 2}	[1, 3]
{"1": 1}	[2, 3]
Warnings:
Warning	1235	This version of MySQL doesn't yet support 'sorting of non-scalar JSON values'
DROP TABLE C;
DROP TABLE CC;
#
# Bug #24367384
# WL#7987: INNODB: ASSERTION FAILURE: ROW0SEL.CC:2558:FIELD->PREFIX_LEN > 0 ...
#
CREATE TABLE BB (pk INT AUTO_INCREMENT PRIMARY KEY, col_varchar_key VARCHAR(1));
INSERT INTO BB VALUES(1,'a');
SELECT (SELECT JSON_ARRAYAGG(`pk`) FROM BB as t1
WHERE t1.`col_varchar_key` <> t2.`col_varchar_key`) AS field2
FROM BB as t2
GROUP BY field2;
field2
NULL
SELECT (SELECT JSON_ARRAYAGG(`pk`) FROM BB as t1
WHERE t1.`col_varchar_key` = t2.`col_varchar_key`) AS field2
FROM BB as t2
GROUP BY field2;
field2
[1]
Warnings:
Warning	1235	This version of MySQL doesn't yet support 'sorting of non-scalar JSON values'
DROP TABLE BB;
#
# Bug #24365264
# WL#7987: SIG 11 IN ITEM::MARK_FIELD_IN_MAP|SQL/ITEM.H
#
CREATE TABLE C (col_int int);
INSERT INTO C VALUES  (1);
SELECT *
FROM C WHERE col_int < (SELECT JSON_ARRAYAGG(col_int) FROM C )
ORDER BY col_int ;
col_int
1
DROP TABLE C;
#
# Bug #24366341
# WL#7987: SIG 6 IN JSON_WRAPPER::TYPE|SQL/JSON_DOM.CC
#
CREATE TABLE CC(col_varchar_key varchar(1));
INSERT INTO CC VALUES ('a');
SELECT JSON_ARRAYAGG(col_varchar_key) AS field1 FROM CC HAVING field1 > 9;
field1
["a"]
SELECT JSON_OBJECTAGG(col_varchar_key, col_varchar_key) AS field1 FROM  CC
HAVING (field1 <> 'a' AND field1 != 'e');
field1
{"a": "a"}
DROP TABLE CC;
#
# with ROLLUP + two/three groups
#
CREATE TABLE tg (g1 int, g2 int, k int, b VARCHAR(10));
INSERT INTO tg VALUES
(1, 1, 1, "alfa"),
(1, 2, 2, null),
(2, 3, 3, "doi"),
(1, 1, 4, "unu"),
(3, 2, 5, "trei"),
(4, 3, 6, null),
(4, 1, 7, null),
(1, 2, 8, "one");
SELECT g1, g2, JSON_ARRAYAGG(g2) FROM tg GROUP BY g1, g2 with rollup;
g1	g2	JSON_ARRAYAGG(g2)
1	1	[1, 1]
1	2	[2, 2]
1	NULL	[1, 1, 2, 2]
2	3	[3]
2	NULL	[3]
3	2	[2]
3	NULL	[2]
4	1	[1]
4	3	[3]
4	NULL	[1, 3]
NULL	NULL	[1, 1, 2, 2, 3, 2, 1, 3]
SELECT g1, g2, JSON_OBJECTAGG(k, g1) FROM tg GROUP BY g1, g2 with rollup;
g1	g2	JSON_OBJECTAGG(k, g1)
1	1	{"1": 1, "4": 1}
1	2	{"2": 1, "8": 1}
1	NULL	{"1": 1, "2": 1, "4": 1, "8": 1}
2	3	{"3": 2}
2	NULL	{"3": 2}
3	2	{"5": 3}
3	NULL	{"5": 3}
4	1	{"7": 4}
4	3	{"6": 4}
4	NULL	{"6": 4, "7": 4}
NULL	NULL	{"1": 1, "2": 1, "3": 2, "4": 1, "5": 3, "6": 4, "7": 4, "8": 1}
CREATE TABLE tg3 (g1 int, g2 int, g3 int, k int, b VARCHAR(10));
INSERT INTO tg3 VALUES
(1, 1, 1, 1, "1.1.1"),
(1, 1, 2, 2, "1.1.2"),
(1, 1, 3, 3, "1.1.3"),
(1, 2, 1, 4, "1.2.1"),
(1, 2, 2, 5, "1.2.2"),
(1, 2, 3, 6, "1.2.3"),
(1, 3, 1, 7, "1.3.1"),
(1, 3, 2, 8, "1.3.2"),
(1, 3, 3, 9, "1.3.3"),
(2, 1, 1, 10, "2.1.1"),
(2, 1, 2, 11, "2.1.2"),
(2, 1, 3, 12, "2.1.3"),
(2, 2, 1, 13, "2.2.1"),
(2, 2, 2, 14, "2.2.2"),
(2, 2, 3, 15, "2.2.3"),
(2, 3, 1, 16, "2.3.1"),
(2, 3, 2, 17, "2.3.2"),
(2, 3, 3, 18, "2.3.3"),
(3, 1, 1, 19, "3.1.1"),
(3, 1, 2, 20, "3.1.2"),
(3, 1, 3, 21, "3.1.3"),
(3, 2, 1, 22, "3.2.1"),
(3, 2, 2, 23, "3.2.2"),
(3, 2, 3, 24, "3.2.3"),
(3, 3, 1, 25, "3.3.1"),
(3, 3, 2, 26, "3.3.2"),
(3, 3, 3, 27, "3.3.3");
SELECT g1, g2, g3, JSON_ARRAYAGG(b) FROM tg3 GROUP BY g1, g2, g3 with rollup;
g1	g2	g3	JSON_ARRAYAGG(b)
1	1	1	["1.1.1"]
1	1	2	["1.1.2"]
1	1	3	["1.1.3"]
1	1	NULL	["1.1.1", "1.1.2", "1.1.3"]
1	2	1	["1.2.1"]
1	2	2	["1.2.2"]
1	2	3	["1.2.3"]
1	2	NULL	["1.2.1", "1.2.2", "1.2.3"]
1	3	1	["1.3.1"]
1	3	2	["1.3.2"]
1	3	3	["1.3.3"]
1	3	NULL	["1.3.1", "1.3.2", "1.3.3"]
1	NULL	NULL	["1.1.1", "1.1.2", "1.1.3", "1.2.1", "1.2.2", "1.2.3", "1.3.1", "1.3.2", "1.3.3"]
2	1	1	["2.1.1"]
2	1	2	["2.1.2"]
2	1	3	["2.1.3"]
2	1	NULL	["2.1.1", "2.1.2", "2.1.3"]
2	2	1	["2.2.1"]
2	2	2	["2.2.2"]
2	2	3	["2.2.3"]
2	2	NULL	["2.2.1", "2.2.2", "2.2.3"]
2	3	1	["2.3.1"]
2	3	2	["2.3.2"]
2	3	3	["2.3.3"]
2	3	NULL	["2.3.1", "2.3.2", "2.3.3"]
2	NULL	NULL	["2.1.1", "2.1.2", "2.1.3", "2.2.1", "2.2.2", "2.2.3", "2.3.1", "2.3.2", "2.3.3"]
3	1	1	["3.1.1"]
3	1	2	["3.1.2"]
3	1	3	["3.1.3"]
3	1	NULL	["3.1.1", "3.1.2", "3.1.3"]
3	2	1	["3.2.1"]
3	2	2	["3.2.2"]
3	2	3	["3.2.3"]
3	2	NULL	["3.2.1", "3.2.2", "3.2.3"]
3	3	1	["3.3.1"]
3	3	2	["3.3.2"]
3	3	3	["3.3.3"]
3	3	NULL	["3.3.1", "3.3.2", "3.3.3"]
3	NULL	NULL	["3.1.1", "3.1.2", "3.1.3", "3.2.1", "3.2.2", "3.2.3", "3.3.1", "3.3.2", "3.3.3"]
NULL	NULL	NULL	["1.1.1", "1.1.2", "1.1.3", "1.2.1", "1.2.2", "1.2.3", "1.3.1", "1.3.2", "1.3.3", "2.1.1", "2.1.2", "2.1.3", "2.2.1", "2.2.2", "2.2.3", "2.3.1", "2.3.2", "2.3.3", "3.1.1", "3.1.2", "3.1.3", "3.2.1", "3.2.2", "3.2.3", "3.3.1", "3.3.2", "3.3.3"]
SELECT g1, g2, g3, JSON_OBJECTAGG(k, b) FROM tg3 GROUP BY g1, g2, g3 with rollup;
g1	g2	g3	JSON_OBJECTAGG(k, b)
1	1	1	{"1": "1.1.1"}
1	1	2	{"2": "1.1.2"}
1	1	3	{"3": "1.1.3"}
1	1	NULL	{"1": "1.1.1", "2": "1.1.2", "3": "1.1.3"}
1	2	1	{"4": "1.2.1"}
1	2	2	{"5": "1.2.2"}
1	2	3	{"6": "1.2.3"}
1	2	NULL	{"4": "1.2.1", "5": "1.2.2", "6": "1.2.3"}
1	3	1	{"7": "1.3.1"}
1	3	2	{"8": "1.3.2"}
1	3	3	{"9": "1.3.3"}
1	3	NULL	{"7": "1.3.1", "8": "1.3.2", "9": "1.3.3"}
1	NULL	NULL	{"1": "1.1.1", "2": "1.1.2", "3": "1.1.3", "4": "1.2.1", "5": "1.2.2", "6": "1.2.3", "7": "1.3.1", "8": "1.3.2", "9": "1.3.3"}
2	1	1	{"10": "2.1.1"}
2	1	2	{"11": "2.1.2"}
2	1	3	{"12": "2.1.3"}
2	1	NULL	{"10": "2.1.1", "11": "2.1.2", "12": "2.1.3"}
2	2	1	{"13": "2.2.1"}
2	2	2	{"14": "2.2.2"}
2	2	3	{"15": "2.2.3"}
2	2	NULL	{"13": "2.2.1", "14": "2.2.2", "15": "2.2.3"}
2	3	1	{"16": "2.3.1"}
2	3	2	{"17": "2.3.2"}
2	3	3	{"18": "2.3.3"}
2	3	NULL	{"16": "2.3.1", "17": "2.3.2", "18": "2.3.3"}
2	NULL	NULL	{"10": "2.1.1", "11": "2.1.2", "12": "2.1.3", "13": "2.2.1", "14": "2.2.2", "15": "2.2.3", "16": "2.3.1", "17": "2.3.2", "18": "2.3.3"}
3	1	1	{"19": "3.1.1"}
3	1	2	{"20": "3.1.2"}
3	1	3	{"21": "3.1.3"}
3	1	NULL	{"19": "3.1.1", "20": "3.1.2", "21": "3.1.3"}
3	2	1	{"22": "3.2.1"}
3	2	2	{"23": "3.2.2"}
3	2	3	{"24": "3.2.3"}
3	2	NULL	{"22": "3.2.1", "23": "3.2.2", "24": "3.2.3"}
3	3	1	{"25": "3.3.1"}
3	3	2	{"26": "3.3.2"}
3	3	3	{"27": "3.3.3"}
3	3	NULL	{"25": "3.3.1", "26": "3.3.2", "27": "3.3.3"}
3	NULL	NULL	{"19": "3.1.1", "20": "3.1.2", "21": "3.1.3", "22": "3.2.1", "23": "3.2.2", "24": "3.2.3", "25": "3.3.1", "26": "3.3.2", "27": "3.3.3"}
NULL	NULL	NULL	{"1": "1.1.1", "2": "1.1.2", "3": "1.1.3", "4": "1.2.1", "5": "1.2.2", "6": "1.2.3", "7": "1.3.1", "8": "1.3.2", "9": "1.3.3", "10": "2.1.1", "11": "2.1.2", "12": "2.1.3", "13": "2.2.1", "14": "2.2.2", "15": "2.2.3", "16": "2.3.1", "17": "2.3.2", "18": "2.3.3", "19": "3.1.1", "20": "3.1.2", "21": "3.1.3", "22": "3.2.1", "23": "3.2.2", "24": "3.2.3", "25": "3.3.1", "26": "3.3.2", "27": "3.3.3"}
DROP TABLE tg;
DROP TABLE tg3;
#
# Tests duplicates for JSON_OBJECTAGG
#
CREATE TABLE t1 (a int, k int, b VARCHAR(10));
INSERT INTO t1 VALUES
(1, 1, "1.1"),
(1, 1, "1.2"),
(1, 1, "1.3"),
(2, 2, "2.1"),
(2, 2, "2.2"),
(2, 2, "2.3");
SELECT a, JSON_OBJECTAGG(k, b) FROM t1 GROUP BY a;
a	JSON_OBJECTAGG(k, b)
1	{"1": "1.1"}
2	{"2": "2.1"}
SELECT a, JSON_ARRAYAGG(b) FROM t1 GROUP BY a;
a	JSON_ARRAYAGG(b)
1	["1.1", "1.2", "1.3"]
2	["2.1", "2.2", "2.3"]
DROP TABLE t1;
#
# Tests with ORDER BY, DISTINCT
#
CREATE TABLE t1 (a int, k int, b VARCHAR(10));
INSERT INTO t1 VALUES
(2, 8, "2.3"),
(1, 7, "1.1"),
(3, 6, "3.2"),
(2, 5, "2.2"),
(3, 9, "3.1"),
(1, 4, "1.2"),
(3, 3, "3.3"),
(2, 2, "2.1"),
(1, 1, "1.3");
SELECT a, JSON_ARRAYAGG(b) FROM t1 GROUP BY a;
a	JSON_ARRAYAGG(b)
1	["1.1", "1.2", "1.3"]
2	["2.3", "2.2", "2.1"]
3	["3.2", "3.1", "3.3"]
SELECT DISTINCT a, JSON_ARRAYAGG(b) FROM t1 GROUP BY a;
a	JSON_ARRAYAGG(b)
1	["1.1", "1.2", "1.3"]
2	["2.3", "2.2", "2.1"]
3	["3.2", "3.1", "3.3"]
SELECT DISTINCT a, JSON_ARRAYAGG(b) FROM t1 GROUP BY a ORDER BY a ASC;
a	JSON_ARRAYAGG(b)
1	["1.1", "1.2", "1.3"]
2	["2.3", "2.2", "2.1"]
3	["3.2", "3.1", "3.3"]
SELECT DISTINCT a, JSON_ARRAYAGG(b) FROM t1 GROUP BY a ORDER BY a DESC;
a	JSON_ARRAYAGG(b)
3	["3.2", "3.1", "3.3"]
2	["2.3", "2.2", "2.1"]
1	["1.1", "1.2", "1.3"]
SELECT a, JSON_OBJECTAGG(k, b) FROM t1 GROUP BY a;
a	JSON_OBJECTAGG(k, b)
1	{"1": "1.3", "4": "1.2", "7": "1.1"}
2	{"2": "2.1", "5": "2.2", "8": "2.3"}
3	{"3": "3.3", "6": "3.2", "9": "3.1"}
SELECT DISTINCT a, JSON_OBJECTAGG(k, b) FROM t1 GROUP BY a;
a	JSON_OBJECTAGG(k, b)
1	{"1": "1.3", "4": "1.2", "7": "1.1"}
2	{"2": "2.1", "5": "2.2", "8": "2.3"}
3	{"3": "3.3", "6": "3.2", "9": "3.1"}
SELECT DISTINCT a, JSON_OBJECTAGG(k, b) FROM t1 GROUP BY a ORDER BY a ASC;
a	JSON_OBJECTAGG(k, b)
1	{"1": "1.3", "4": "1.2", "7": "1.1"}
2	{"2": "2.1", "5": "2.2", "8": "2.3"}
3	{"3": "3.3", "6": "3.2", "9": "3.1"}
SELECT DISTINCT a, JSON_OBJECTAGG(k, b) FROM t1 GROUP BY a ORDER BY a DESC;
a	JSON_OBJECTAGG(k, b)
3	{"3": "3.3", "6": "3.2", "9": "3.1"}
2	{"2": "2.1", "5": "2.2", "8": "2.3"}
1	{"1": "1.3", "4": "1.2", "7": "1.1"}
DROP TABLE t1;
#
# Tests with joins
#
CREATE TABLE t(id INT PRIMARY KEY AUTO_INCREMENT, t1 INT, t2 INT);
CREATE TABLE p(id INT PRIMARY KEY AUTO_INCREMENT, p1 INT, p2 INT);
INSERT INTO t(t1, t2) VALUES (1, 1), (2, 1), (3,3), (1, 4);
INSERT INTO p(p1, p2) VALUES (2, 1), (1, 1), (3,3), (2, 4);
FLUSH STATUS;
SHOW SESSION STATUS LIKE 'Handler_update%';
Variable_name	Value
Handler_update	0
SELECT JSON_ARRAYAGG(t2) FROM t join p on t.t1=p.p1;
SHOW SESSION STATUS LIKE 'Handler_update%';
Variable_name	Value
Handler_update	0
SELECT t1, JSON_ARRAYAGG(t2) FROM t join p on t.t1=p.p1 group by t1;
SHOW SESSION STATUS LIKE 'Handler_update%';
Variable_name	Value
Handler_update	0
SELECT (SELECT 1 AS foo ORDER BY JSON_ARRAYAGG(t2)) AS x FROM t;
x
1
SELECT t1 FROM t ORDER BY (SELECT JSON_ARRAYAGG(t1) FROM t AS t2);
t1
1
2
3
1
SELECT JSON_ARRAYAGG(t1) FROM t
ORDER BY (SELECT JSON_ARRAYAGG(t1) FROM t AS t2);
JSON_ARRAYAGG(t1)
[1, 2, 3, 1]
SELECT (SELECT JSON_ARRAYAGG(t1_outer.t1) FROM t AS t1_inner LIMIT 1) as f
FROM t AS t1_outer GROUP BY t1_outer.t2;
f
[1, 2]
[3]
[1]
DROP TABLE t;
DROP TABLE p;
#
# Tests with JSON
#
CREATE TABLE t(id INT PRIMARY KEY AUTO_INCREMENT, k INT, j JSON);
INSERT INTO t(k, j) VALUES
(1, '[1,2,3,4]'),
(2, '{"prop1": 1}'),
(1, '[3]'),
(2, '{"prop2": 2, "prop10": 10}'),
(1, '[99]');
SELECT k, JSON_ARRAYAGG(j) FROM t GROUP BY k;
k	JSON_ARRAYAGG(j)
1	[[1, 2, 3, 4], [3], [99]]
2	[{"prop1": 1}, {"prop2": 2, "prop10": 10}]
SELECT k, JSON_OBJECTAGG(id, j) FROM t GROUP BY k;
k	JSON_OBJECTAGG(id, j)
1	{"1": [1, 2, 3, 4], "3": [3], "5": [99]}
2	{"2": {"prop1": 1}, "4": {"prop2": 2, "prop10": 10}}
DROP TABLE t;
#
# Coverage tests for val_* functions
#
CREATE TABLE t2(gid int, a int);
INSERT INTO t2(gid, a) VALUES (1, 1), (1, 2), (2, 4), (2, 8);
SELECT gid, 1.0 * JSON_ARRAYAGG(a) FROM t2 GROUP BY gid;
gid	1.0 * JSON_ARRAYAGG(a)
1	0.0
2	0.0
Warnings:
Warning	3156	Invalid JSON value for CAST to DOUBLE from column json_arrayagg( at row 3
Warning	3156	Invalid JSON value for CAST to DOUBLE from column json_arrayagg( at row 5
SELECT gid, 0x30 << JSON_ARRAYAGG(a) FROM t2 GROUP BY gid;
gid	0x30 << JSON_ARRAYAGG(a)
1	48
2	48
Warnings:
Warning	3156	Invalid JSON value for CAST to INTEGER from column json_arrayagg( at row 3
Warning	3156	Invalid JSON value for CAST to INTEGER from column json_arrayagg( at row 5
SELECT gid, DATE_ADD(JSON_ARRAYAGG(a), INTERVAL 31 DAY)
FROM t2 GROUP BY gid;
gid	DATE_ADD(JSON_ARRAYAGG(a), INTERVAL 31 DAY)
1	NULL
2	NULL
Warnings:
Warning	3156	Invalid JSON value for CAST to DATE/TIME/DATETIME/TIMESTAMP from column json_arrayagg( at row 3
Warning	3156	Invalid JSON value for CAST to DATE/TIME/DATETIME/TIMESTAMP from column json_arrayagg( at row 5
SELECT gid, ADDTIME(JSON_ARRAYAGG(a), '02:00:00.999998')
FROM t2 GROUP BY gid;
gid	ADDTIME(JSON_ARRAYAGG(a), '02:00:00.999998')
1	NULL
2	NULL
Warnings:
Warning	3156	Invalid JSON value for CAST to DATE/TIME/DATETIME/TIMESTAMP from column json_arrayagg( at row 3
Warning	3156	Invalid JSON value for CAST to DATE/TIME/DATETIME/TIMESTAMP from column json_arrayagg( at row 5
SELECT gid, SEC_TO_TIME(JSON_ARRAYAGG(a)) FROM t2 GROUP BY gid;
gid	SEC_TO_TIME(JSON_ARRAYAGG(a))
1	00:00:00
2	00:00:00
Warnings:
Warning	3156	Invalid JSON value for CAST to DECIMAL from column json_arrayagg( at row 3
Warning	3156	Invalid JSON value for CAST to DECIMAL from column json_arrayagg( at row 5
TRUNCATE TABLE t2;
SELECT 1.0 * JSON_ARRAYAGG(a) FROM t2;
1.0 * JSON_ARRAYAGG(a)
NULL
SELECT 0x30 << JSON_ARRAYAGG(a) FROM t2;
0x30 << JSON_ARRAYAGG(a)
NULL
SELECT DATE_ADD(JSON_ARRAYAGG(a), INTERVAL 31 DAY) FROM t2;
DATE_ADD(JSON_ARRAYAGG(a), INTERVAL 31 DAY)
NULL
SELECT ADDTIME(JSON_ARRAYAGG(a), '02:00:00.999998') FROM t2;
ADDTIME(JSON_ARRAYAGG(a), '02:00:00.999998')
NULL
SELECT SEC_TO_TIME(JSON_ARRAYAGG(a)) FROM t2;
SEC_TO_TIME(JSON_ARRAYAGG(a))
NULL
DROP TABLE t2;

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Code Editor : json_agg.result