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authorHeikki Linnakangas <heikki.linnakangas@iki.fi>2015-07-27 18:54:09 +0300
committerHeikki Linnakangas <heikki.linnakangas@iki.fi>2015-07-27 18:54:09 +0300
commit820d1ced1b308702b3f811647810b4030f974d89 (patch)
treeb3d26eb27e7b88aaae0fafdefabd8436ad878f59 /src/tutorial/basics.source
parent61a65c53bd3e48e7ff7661a528d1791dfd956957 (diff)
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Don't assume that PageIsEmpty() returns true on an all-zeros page.
It does currently, and I don't see us changing that any time soon, but we don't make that assumption anywhere else. Per Tom Lane's suggestion. Backpatch to 9.2, like the previous patch that added this assumption.
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