[postgis-tickets] [PostGIS] #4490: PG12: Review MVT functions cost

[PostGIS]

#4490: PG12: Review MVT functions cost
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 Reporter:  Algunenano   |      Owner:  Algunenano
     Type:  enhancement  |     Status:  assigned
 Priority:  medium       |  Milestone:  PostGIS 3.0.0
Component:  postgis      |    Version:  trunk
 Keywords:               |
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 The current cost (`procost+ ) of ST_AsMVTGeom is the C default (1). Since
 it's a function that can have a really high CPU usage we should consider
 raising its cost to improve parallelization.

 I think we should review it together with the ST_AsMVT, since they are
 usually called together and the aggregation might also have a high cost
 (depends on the how the hash table is populated).

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4490>
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