Start logical decoding from any lsn present in the wal segment

From: sanyam jain <sanyamjain22(at)live(dot)in>
To: Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Start logical decoding from any lsn present in the wal segment
Date: 2017-06-29 08:32:19
Message-ID: BM1PR01MB101143E890CBBA640F6AC607C0D20@BM1PR01MB1011.INDPRD01.PROD.OUTLOOK.COM
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Hi,

Currently logical decoding finds a consistent point by generating a snapshot and stream changes after consistent point.I want to change this behaviour to something which stream changes from a lsn in the past provided its present in wal segment.Can this behaviour be implemented and if yes, what are the steps i should perform to implement the same.

Thanks,

Sanyam Jain

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