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# <a id="bitdrift.public.unary.workflows.v1.Operator"></a>Operator

| Name | Number | Description |
|---|---|---|
| EQUAL | 0 |  |
| NOT_EQUAL | 1 |  |
| GREATER_THAN | 2 |  |
| GREATER_THAN_OR_EQUAL | 3 |  |
| LESS_THAN | 4 |  |
| LESS_THAN_OR_EQUAL | 5 |  |
| REGEX | 6 |  |
| IN | 7 | The operator expects a list of the elements on the right side.  The API supports a single string as the value on the right side of the  operator so we follow a convention when you can provide multiple values  in a single string by separating them with a '~~' string. |
| NOT_IN | 8 | The operator expects a list of the elements on the right side.  The API supports a single string as the value on the right side of the  operator so we follow a convention when you can provide multiple values  in a single string by separating them with a '~~' string. |
| NOT_REGEX | 9 | An inversion of a regex. |
| WILDCARD | 10 | A simplified regex syntax, where '*' is the wildcard character and '?'  matches a single character and there are no other special characters.   Matches are always made against the entire string. |
| NOT_WILDCARD | 11 | A negation of the WILDCARD operator. |
| SET | 12 | The operator doesn't expect any value on the right side.  Matches if a value of a given field is set. |
| NOT_SET | 13 | The operator doesn't expect any value on the right side.  An inversion of a "SET" operator. |