GIN logging GIN_SEGMENT_UNMODIFIED actions?

From: Andres Freund <andres(at)anarazel(dot)de>
To: pgsql-hackers(at)postgresql(dot)org
Subject: GIN logging GIN_SEGMENT_UNMODIFIED actions?
Date: 2016-05-09 19:46:45
Message-ID: 20160509194645.7lewnpw647zegx2m@alap3.anarazel.de
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Hi,

trying to debug something I saw the following in pg_xlogdump output:

rmgr: Gin len (rec/tot): 0/ 274, tx: 0, lsn: 1C/DF28AEB0, prev 1C/DF289858, desc: VACUUM_DATA_LEAF_PAGE 3 segments: 5 unknown action 0 ???, blkref #0: rel 1663/16384/16435 blk 310982

note the "segments: 5 unknown action 0 ???" bit. That doesn't seem
right, given:
#define GIN_SEGMENT_UNMODIFIED 0 /* no action (not used in WAL records) */

Greetings,

Andres Freund

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