Niels Charlier ( 
https://osgeo-org.atlassian.net/secure/ViewProfile.jspa?accountId=557058%3A1d2c4019-de4e-4624-8b27-2486941601cf
 ) *created* an issue

GeoServer ( 
https://osgeo-org.atlassian.net/browse/GEOS?atlOrigin=eyJpIjoiZDI2NTU2NDVjM2YzNDk4MmE3YWUxNGU3YzhmZWI5NmYiLCJwIjoiaiJ9
 ) / Bug ( 
https://osgeo-org.atlassian.net/browse/GEOS-9594?atlOrigin=eyJpIjoiZDI2NTU2NDVjM2YzNDk4MmE3YWUxNGU3YzhmZWI5NmYiLCJwIjoiaiJ9
 ) GEOS-9594 ( 
https://osgeo-org.atlassian.net/browse/GEOS-9594?atlOrigin=eyJpIjoiZDI2NTU2NDVjM2YzNDk4MmE3YWUxNGU3YzhmZWI5NmYiLCJwIjoiaiJ9
 ) CSW: performance issue: every page loads entire catalog ( 
https://osgeo-org.atlassian.net/browse/GEOS-9594?atlOrigin=eyJpIjoiZDI2NTU2NDVjM2YzNDk4MmE3YWUxNGU3YzhmZWI5NmYiLCJwIjoiaiJ9
 )

Issue Type: Bug Assignee: Niels Charlier ( 
https://osgeo-org.atlassian.net/secure/ViewProfile.jspa?accountId=557058%3A1d2c4019-de4e-4624-8b27-2486941601cf
 ) Components: CSW Created: 29/Apr/20 11:29 AM Priority: Medium Reporter: Niels 
Charlier ( 
https://osgeo-org.atlassian.net/secure/ViewProfile.jspa?accountId=557058%3A1d2c4019-de4e-4624-8b27-2486941601cf
 )

If you have multiple pages in CSW, each page will load the entire catalog and 
apply post-filtering for paging.

This defeats the purpose of paging with large catalogues.

Geonetwork harvester uses paging, and it will take many hours to harvest a 
large catalog.

Prefiltering instead of postfiltering can solve this problem. Special attention 
needs to go to the combination of layergroups and layers in combination with 
filters and paging.

( 
https://osgeo-org.atlassian.net/browse/GEOS-9594#add-comment?atlOrigin=eyJpIjoiZDI2NTU2NDVjM2YzNDk4MmE3YWUxNGU3YzhmZWI5NmYiLCJwIjoiaiJ9
 ) Add Comment ( 
https://osgeo-org.atlassian.net/browse/GEOS-9594#add-comment?atlOrigin=eyJpIjoiZDI2NTU2NDVjM2YzNDk4MmE3YWUxNGU3YzhmZWI5NmYiLCJwIjoiaiJ9
 )

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