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CREATE TABLE test (val JSON)
SELECT '[1]' val UNION ALL
SELECT '[1,2,3]' UNION ALL
SELECT '[1,5,10]'UNION ALL
SELECT '[2,2,3]' UNION ALL
SELECT '[2,5,10]'UNION ALL
SELECT '[123,5,10]';
SELECT CAST(val AS CHAR) FROM test;
SELECT val->"$[0]" + 0, COUNT(*) FROM test GROUP BY 1;
Records: 6 Duplicates: 0 Warnings: 0
| CAST(val AS CHAR) |
|---|
| [1] |
| [1, 2, 3] |
| [1, 5, 10] |
| [2, 2, 3] |
| [2, 5, 10] |
| [123, 5, 10] |
| val->"$[0]" + 0 | COUNT(*) |
|---|---|
| 1 | 3 |
| 2 | 2 |
| 123 | 1 |