peiwangdb

**Describe the bug** If the user-specified _count is larger than max_count, the system does not check. Similarly, for each universal parameter, we should define checking rules and check the legitimacy...

data_connector: schema.json, adding description attribute for field definition?

1

Adding a description for the parameters will help the users understand how to specify values for each parameter. For example, the format of the longitude in Yelp.businesses table; the maximum...

Data_connector: redesign query API.

3

**Is your feature request related to a problem? Please describe.** Current dc API requires the user to initialize a class and call the member function to issue a query. **Describe...