Error Messages Relating to Unions
| Code | 159400 |
| Severity | Error |
| Message | Stream {0} specifies a Union clause along with a local declare block. This is not supported. |
| Description | Stream definitions using Union clause cannot have an associated local declare block. |
| Code | 159401 |
| Severity | Error |
| Message | Attempt to Union streams with incompatible schema for union stream {0}. |
| Description | No additional information available. |
| Code | 159402 |
| Severity | Error |
| Message | Cannot find Primary Union Node. |
| Description | No additional information available. |
| Code | 159403 |
| Severity | Error |
| Message | Sources in the SELECT clauses of the Union primitive {0} overlap. This is currently not supported. |
| Description | Union Streams/Windows do not support Self-Joins. |