| ERROR | datatype mismatch between virtual column and expression |
| CAUSE | virtual column expression was changed after column was created |
| ACTION | change the underlying expression to return datatype that conforms to the virtual column |
| ERROR | datatype mismatch between virtual column and expression |
| CAUSE | virtual column expression was changed after column was created |
| ACTION | change the underlying expression to return datatype that conforms to the virtual column |