[Tile-serving] [osm2pgsql] Partitioning (#92)

[Paul Norman]

It would be **extremely** useful if it was possible to create partitioned tables on tag values to improve performance. The standard example of this is the polygon table and partitioning it on `building IS NULL`. This would achieve gains greater than a partial index `ON gist (way) WHERE building IS NULL`, which is already 11%. See https://github.com/gravitystorm/openstreetmap-carto/issues/207#issuecomment-25689455

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Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/osm2pgsql/issues/92
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