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A stats object ought to have a dependency on each individual column it reads, not the entire table. Doing this honestly lets us get rid of the hard-wired logic in RemoveStatisticsExt, which seems to have been misguidedly modeled on RemoveStatistics; and it will be far easier to extend to multiple tables later. Also, add overlooked dependency on owner, and make the dependency on schema be NORMAL like every other such dependency. There remains some unfinished work here, which is to allow statistics objects to be extension members. That takes more effort than just adding the dependency call, though, so I left it out for now. initdb forced because this changes the set of pg_depend records that should exist for a statistics object. Discussion: https://postgr.es/m/22676.1494557205@sss.pgh.pa.us |
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