Currently there is no way user can keep the dsm segments if he wants for postmaster lifetime, so I have exposed a new API dsm_keep_segment() to implement the same.
The specs and need for this API is already discussed in thread: http://www.postgresql.org/message-id/ca+tgmoakogujqbedgeykysxud9eaidqx77j2_hxzrgfo3hr...@mail.gmail.com I had used dsm_demo (hacked it a bit) module used during initial tests for dsm API's to verify the working on Windows. So one idea could be that I can extend that module to use this new API, so that it can be tested by others as well or if you have any other better way, please do let me know. As the discussion about its specs and need is already discussed in above mentioned thread, so I will upload this patch to CF unless there is any Objection. With Regards, Amit Kapila. EnterpriseDB: http://www.enterprisedb.com
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