Marek Lewczuk <newsy@xxxxxxxxxxx> writes: > Thanks for reply. You need a test case, but what it should include ? I > don't know in what situations this warning is thrown. My database is > quite large - hundreds of tables, tons of data... Where I should start ? I doubt it's got anything to do with your data; I'd look at complex PL functions. If you don't already know which queries trigger it, increase your logging to find out. regards, tom lane