Hi all, I was just testing the VACUUM truncation logic, and bumped into what looks like a corrupted btree index. Here is a reproducer: create table aa (a int primary key, b bool); insert into aa values (generate_series(1,1000000), false); checkpoint; update aa set b = false where a > 500000; -- Dirties a set of shared buffers delete from aa where a > 750000; -- Delete a set of rows vacuum aa; delete from aa where a > 10; vacuum aa; -- error on btree with right sibling
And here is the actual failure when the second vacuum: ERROR: XX000: right sibling 4132 of block 2128 is not next child 5396 of block 412 in index "aa_pkey" LOCATION: _bt_mark_page_halfdead, nbtpage.c:1564 This works on REL_10_STABLE, so I am adding an open item. I have not investigated the exact problem yet, but bisect is showing me covering indexes as the culprit (8224de4). Thanks, -- Michael
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