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| FIND_IN_SET(1, '1, 4') |
|---|
| 1 |
| FIND_IN_SET('1', '1, 4') |
|---|
| 1 |
| FIND_IN_SET(' 1', '1, 4') |
|---|
| 0 |
| FIND_IN_SET(4, '1, 4') |
|---|
| 0 |
| FIND_IN_SET('4', '1, 4') |
|---|
| 0 |
| FIND_IN_SET(' 4', '1, 4') |
|---|
| 2 |