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Andrea Aime created an issue |
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Performance regression in DescribeFeatureType across all feature types |
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Created: |
21/Apr/23 7:40 PM |
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Reporter: |
Medium|
Performance of DescribeFeatureType returning the schema of all feature types dropped significantly when working against installations with many layers, as result of changes in https://osgeo-org.atlassian.net/browse/GEOS-10716 . The issue is not evident, but adding the new elements early to the containing schema, while still changing their contents, causes a large number of “patch” operations against the schema which in turn seem to be rebuilding entire sub-trees of the schema description. When many layers are processed, the performances drop significantly (20x times slowdown). We are going to address this by avoiding the early add, and rather post-process the attribute definition to add annotations, instead. |
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