We have a custom object with a Formula field referncing the Amount field in the Opportunity object. In apex, we use dynamic SOQL to generate a query that includes this field. When the code executes in Winter 18 (Partial Sandbox), we are receiving this error when the query executes: System.UnexpectedException: common.exception.SfdcSqlException: ORA-00936: missing expression. 

Exact same code is working fine in Production (Summer 17). We tested in a Developer Sandbox running Winter 18 and it is working fine too. Compared the metadata between the two sandboxes and seems to be the same. Anyone else seeing problems with dynamic SOQL queries in Winter 18? 

We have a custom object with a Formula field referncing the Amount field in the Opportunity object. In apex, we use dynamic SOQL to generate a query that includes this field. When the code executes in Winter 18 (Partial Sandbox), we are receiving this error when the query executes: System.UnexpectedException: common.exception.SfdcSqlException: ORA-00936: missing expression. 

Exact same code is working fine in Production (Summer 17). We tested in a Developer Sandbox running Winter 18 and it is working fine too. Compared the metadata between the two sandboxes and seems to be the same. Anyone else seeing problems with dynamic SOQL queries in Winter 18?