Salvatore Campagna 780cac5a6d Enable a sparse doc values index for @timestamp in LogsDB (#122161) ... This PR extends the work done in #121751 by enabling a sparse doc values index for the @timestamp field in LogsDB. Similar to the previous PR, the setting index.mapping.use_doc_values_skipper will override the index mapping parameter when all of the following conditions are met: * The index mode is LogsDB. * The field name is @timestamp. * Index sorting is configured on @timestamp (regardless of whether it is a primary sort field or not). * Doc values are enabled. This ensures that only one index structure is defined on the @timestamp field: * If the conditions above are met, the inverted index is replaced with a sparse doc values index. * This prevents both the inverted index and sparse doc values index from being enabled together, reducing unnecessary storage overhead. This change aligns with our goal of optimizing LogsDB for storage efficiency while possibly maintaining reasonable query latency performance. It will enable us to run benchmarks and evaluate the impact of sparse indexing on the @timestamp field as well.		2025-02-17 13:31:26 +01:00
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src	Enable a sparse doc values index for @timestamp in LogsDB (#122161)	2025-02-17 13:31:26 +01:00
build.gradle	Add selector syntax to index expressions (#118614)	2025-01-08 11:37:03 -05:00