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I have install the ODS 2.0.5, and configure a service on resource like this:
select tab.a,tab.b,tab.c from tab where row_id= :id;
when I query some row which tab.c is null ,there are only column a,b in JSON result. But I want to show column c : null <-(empty,not null in char)
Is there any way to get result like that?