Important
The SingleStore 9.1 release candidate (RC) is available now. It will be promoted to general availability (GA) soon and at that time it will be renamed to SingleStore 10.
In the interim, SingleStore 9.1 RC can be used to preview, evaluate, and provide feedback on the new and upcoming features in SingleStore 10, while SingleStore 9.0 is recommended for production workloads.
JSON_
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The JSON_ function is a set of three JSON functions, which add the given element to the end of a JSON array.
Arrays are of the form:
["alpha", "beta", "gamma"]
["alpha", 1, 2, 3]-
JSON_is for all numeric data.ARRAY_ PUSH_ DOUBLE Javascript has only one numeric type. -
JSON_is for all text and binary types.ARRAY_ PUSH_ STRING -
JSON_is for all valid Javascript types, includingARRAY_ PUSH_ JSON true,false, JSON maps, and lists.
JSON_ARRAY_PUSH_<type>(json, value)
Arguments
-
json: a valid JSON array, or the name of a JSON column. -
value: the value to add to the array.
Return Value
-
The complete array including the new element.
-
SQL NULL if json is not a valid JSON array.
Examples
SELECT JSON_ARRAY_PUSH_STRING('["alpha", "beta"]', 'gamma') AS add_letters;
+--------------------------+
| add_letters |
+--------------------------+
| ["alpha","beta","gamma"] |
+--------------------------+SELECT JSON_ARRAY_PUSH_STRING("0", "beta") AS add_letters;
+-------------+
| add_letters |
+-------------+
| NULL |
+-------------+SELECT JSON_ARRAY_PUSH_DOUBLE('[1, 2, 3]', 'delta') AS position;
+-----------+
| position |
+-----------+
| [1,2,3,0] |
+-----------+SELECT JSON_ARRAY_PUSH_JSON('["alpha", false]', '{"beta":"gamma"}') AS add_map;
+-------------------+
| add_map |
+-------------------+
| ["alpha",false, |
| {"beta":"gamma"}] |
+-------------------+Last modified: