[openstreetmap/openstreetmap-website] Partition large tables (#2076)
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Wed Nov 28 17:23:58 UTC 2018
But you'd have to fragment them into a vast number of chunks to make them small enough that locks aren't an issue.
And are you really saying that rewriting a column doesn't need to lock the whole set of chunks anyway? Can it really cope with half the chunks being in the old schema and half in the new schema?
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