Only three data types for Custom Connectors?


I'm building an internal custom connector for my company and everything is working except for the fact that the data is mostly composed of integers but the only data type available for numbers when creating a custom connector is DATA_TYPE_DOUBLE.  All the data shows up as decimals and it is a pain to change the data types every time I want to use the dataset in an ETL.  Are there other undocumented data types?  Since I can see 'whole number' data coming from other connectors I'm assuming that I'm missing something.


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