Don't always rewrite the Lucene query in search phases #79358
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Today the Lucene query is rewritten eagerly in the dfs, query and fetch search phases. While this is needed in dfs and search, most of the fetch phases could avoid this cost. This change adds an explicit accessor for SearchContext that rewrites the original query once and returns its rewritten form. That allows to rewrite the Lucene query only when it's required.
jimczi
added
>enhancement
:Search/Search
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Pinging @elastic/es-search (Team:Search) |
romseygeek
reviewed
Oct 18, 2021
server/src/main/java/org/elasticsearch/search/fetch/subphase/FetchScorePhase.java
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server/src/main/java/org/elasticsearch/search/internal/SearchContext.java
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server/src/main/java/org/elasticsearch/search/internal/SearchContext.java
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hgmauri
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Oct 18, 2021
jimczi
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Oct 18, 2021
Today the Lucene query is rewritten eagerly in the dfs, query and fetch search phases. While this is needed in dfs and search, most of the fetch phases could avoid this cost. This change adds an explicit accessor for SearchContext that rewrites the original query once and returns its rewritten form. That allows to rewrite the Lucene query only when it's required.
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Today the Lucene query is rewritten eagerly in the dfs, query and fetch search phases.
While this is needed in dfs and search, most of the fetch phases could avoid this cost.
This change adds an explicit accessor for SearchContext that rewrites the original query
once and returns its rewritten form. That allows to rewrite the Lucene query only when
it's required.