What is DDL look like in your VDB for representing the Numeric column? Here are all the supported data types in Teiid . When connected to the source systems like BigQuery, the native types of the source system are mapped to one of the types in the Teiid. Typically that done during the import of metadata of your source (BigQuery), which will become part of your VDB. Teiid does not have builtin translator for BigQuery, so you must have used alternative methods to define the VDB, and usage of the translator.