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Special field visitor for _ignored_source #131885

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@jordan-powers jordan-powers commented Jul 24, 2025

Code from #130676 patched to address the issues with loading multiple stored values or _ignored_source values.

Relates to #130886

jordan-powers and others added 2 commits July 24, 2025 13:01
* Parse sub field fields once in IgnoredSourceRowStrideReader instead of
  for each doc that gets read.
* Introduce a dedicated StoredFieldLoader for ignored source
  (IgnoredSourceFieldLoader). Which optimizes reading stored fields just
  for ignored source by avoiding relatively expensive set stuff (see
  CustomFieldsVisitor).

Co-authored-by: Martijn van Groningen <[email protected]>
@jordan-powers jordan-powers self-assigned this Jul 24, 2025
@jordan-powers jordan-powers added >non-issue :StorageEngine/Mapping The storage related side of mappings v9.2.0 labels Jul 24, 2025
@jordan-powers jordan-powers changed the title Unmapped fields special field visitor Special field visitor for _ignored_source Jul 24, 2025
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>non-issue :StorageEngine/Mapping The storage related side of mappings v9.2.0
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