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(parent: 2fa8ba3) | patch
Reuse all-zero pages in GIN.
authorHeikki Linnakangas <heikki.linnakangas@iki.fi>
Mon, 27 Jul 2015 09:30:26 +0000 (12:30 +0300)
committerHeikki Linnakangas <heikki.linnakangas@iki.fi>
Mon, 27 Jul 2015 09:31:05 +0000 (12:31 +0300)
commit202aea62a84135256c6aa394af2c4dbfa1700c85
treea11590e55d3eb32a4a2be59e684fdfd6cf70fde5tree | snapshot
parent2fa8ba34804211714a6e0a7fcf5512423c77f8ddcommit | diff
Reuse all-zero pages in GIN.

In GIN, an all-zeros page would be leaked forever, and never reused. Just
add them to the FSM in vacuum, and they will be reinitialized when grabbed
from the FSM. On master and 9.5, attempting to access the page's opaque
struct also caused an assertion failure, although that was otherwise
harmless.

Reported by Jeff Janes. Backpatch to all supported versions.
src/backend/access/gin/ginvacuum.c diff | blob | history
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