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| author | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2014-01-24 10:42:38 +0200 |
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| committer | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2014-01-24 10:48:45 +0200 |
| commit | 398cf255ad50db86ca665b75582317d4e795242a (patch) | |
| tree | 3ee0fcb797d98273d0d14687e69542257a8f4724 /src/backend/utils/adt/float.c | |
| parent | fbe19ee3b87590f1006d072be5fecf8a33d4e9f5 (diff) | |
| download | postgresql-398cf255ad50db86ca665b75582317d4e795242a.tar.gz postgresql-398cf255ad50db86ca665b75582317d4e795242a.zip | |
In GIN recompression code, use mmemove rather than memcpy, for vacuum.
When vacuuming a data leaf page, any compressed posting lists that are not
modified, are copied back to the buffer from a later location in the same
buffer rather than from a palloc'd copy. IOW, they are just moved
downwards in the same buffer. Because the source and destination addresses
can overlap, we must use memmove rather than memcpy.
Report and fix by Alexander Korotkov.
Diffstat (limited to 'src/backend/utils/adt/float.c')
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