ECSqlReader can see uncommitted changes on primary connection. #1012
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itwinjs-core: iTwin/itwinjs-core#7740
Editing application need to read changes as present on primary connection.
ECSqlReaderuses concurrent queries to read data which uses separate connection which does not see current changes on primary db.This can be solved with
usePrimaryConnoption but we lose the concurrency in doing so.An alternative method is to use
PRAGMA read_uncommitted=1which only works if shared cache is on. So, this PR enables read_uncommitted from concurrent query and enables shared cache by default.