Enable exclude_source_vectors by default for new indices
#131907
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This commit sets `index.mapping.exclude_source_vectors` to `true` by default for newly created indices. When enabled, vector fields (`dense_vector`, `sparse_vector`, `rank_vector`) are excluded from `_source` on disk and are not returned in API responses unless explicitly requested. The change improves indexing performance, reduces storage size, and avoids unnecessary payload bloat in responses. Vector values continue to be rehydrated transparently for partial updates, reindex, and recovery. Existing indices are not affected and continue to store vectors in `_source` by default.
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Pinging @elastic/es-search-relevance (Team:Search Relevance) |
elasticsearchmachine
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Team:Search Relevance
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Hi @jimczi, I've created a changelog YAML for you. Note that since this PR is labelled |
…er than byte per byte if fields are synthetic
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This commit sets
index.mapping.exclude_source_vectorstotrueby default for newly created indices. When enabled, vector fields (dense_vector,sparse_vector,rank_vector) are excluded from_sourceon disk and are not returned in API responses unless explicitly requested.The change improves indexing performance, reduces storage size, and avoids unnecessary payload bloat in responses. Vector values continue to be rehydrated transparently for partial updates, reindex, and recovery.
Existing indices are not affected and continue to store vectors in
_sourceby default.