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Various optimizations to help with layers with big number of fields #10787

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merged 3 commits into from
Sep 13, 2024

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@rouault rouault commented Sep 12, 2024

  • UnionLayer: avoid some potential O(n^2) issues with n=field_count
  • SQLite: avoid some potential O(n^2) issues with n=field_count
  • OGRFeature: optimizations while accessing field count

Fixes #10765

@rouault rouault added this to the 3.10.0 milestone Sep 12, 2024
@rouault rouault merged commit 2d5ef32 into OSGeo:master Sep 13, 2024
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OGRUnionLayer is slow on datasets with many columns
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