How wildfire deal with the concurrent?


how wildfire deal with the concurrent?

for example ,if two resources add the same contact,or the persons add each other at the same time.



I don’'t think that Wildfire neads to deal with these problems. The worst thing which can happen are that

a) an INSERT does fail with something like “PK does already exist” - and “concurrent” updates are an issue b) all but one of the concurrent UPDATEs fail with an exception.

So I wouldn’'t expect any data loss or corruption.