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[ES|QL] Query approximation: support TS / PROMQL / chained STATS

:ml/ES|QLML Commands in ES|QL e.g. CATEGORIZE, SAMPLE, CHANGE_POINT etc...ML Commands in ES|QL e.g. CATEGORIZE, SAMPLE, CHANGE_POINT etc...

>enhancement

Team:MLMeta label for the ML teamMeta label for the ML team

Status: Open.

#148955 In elastic/elasticsearch;

· jan-elastic opened on May 13, 2026

CHANGE POINT BY tests failing in release tests

:ml/ES|QLML Commands in ES|QL e.g. CATEGORIZE, SAMPLE, CHANGE_POINT etc...ML Commands in ES|QL e.g. CATEGORIZE, SAMPLE, CHANGE_POINT etc...

>test-failureTriaged test failures from CITriaged test failures from CI

low-riskAn open issue or test failure that is a low risk to future releasesAn open issue or test failure that is a low risk to future releases

Team:MLMeta label for the ML teamMeta label for the ML team

Status: Open.

#148954 In elastic/elasticsearch;

· alex-spies opened on May 13, 2026

Capture per node resource usage during Rally benchmark runs

>enhancement

needs:triageRequires assignment of a team area labelRequires assignment of a team area label

Status: Open.

#148952 In elastic/elasticsearch;

· salvatore-campagna opened on May 13, 2026

Memory accounting and visibility gaps in Elasticsearch

>bug

needs:triageRequires assignment of a team area labelRequires assignment of a team area label

Status: Open.

#148950 In elastic/elasticsearch;

· salvatore-campagna opened on May 13, 2026

ES|QL: Retrieving source document post categorization

:Analytics/EQLEQL queryingEQL querying

>enhancement

Team:AnalyticsMeta label for analytical engine team (ESQL/Aggs/Geo)Meta label for analytical engine team (ESQL/Aggs/Geo)

Status: Open.

#148948 In elastic/elasticsearch;

· achyutjhunjhunwala opened on May 13, 2026

ES|QL: Random sampling

:Analytics/EQLEQL queryingEQL querying

>enhancement

Team:AnalyticsMeta label for analytical engine team (ESQL/Aggs/Geo)Meta label for analytical engine team (ESQL/Aggs/Geo)

Status: Open.

#148947 In elastic/elasticsearch;

· achyutjhunjhunwala opened on May 13, 2026

ES|QL: PropagateNullable still fails after #148277 ([#141579] regression on serverless)

:Analytics/ES|QLAKA ESQLAKA ESQL

>bug

Team:AnalyticsMeta label for analytical engine team (ESQL/Aggs/Geo)Meta label for analytical engine team (ESQL/Aggs/Geo)

Status: Open.

#148944 In elastic/elasticsearch;

· kubasobon opened on May 13, 2026

[CI] FollowingEngineTests testProcessOnceOnPrimary failing

:Distributed/EngineAnything around managing Lucene and the Translog in an open shard.Anything around managing Lucene and the Translog in an open shard.

>test-failureTriaged test failures from CITriaged test failures from CI

needs:riskRequires assignment of a risk label (low, medium, blocker)Requires assignment of a risk label (low, medium, blocker)

Team:DistributedMeta label for distributed team.Meta label for distributed team.

Status: Open.

#148943 In elastic/elasticsearch;

· elasticsearchmachine opened on May 13, 2026

High contention in Jackson string cache under TSDS workload with many fields [performance issue]

needs:triageRequires assignment of a team area labelRequires assignment of a team area label

Status: Open.

#148942 In elastic/elasticsearch;

· sherman opened on May 13, 2026

[CI] XPackRestIT test {yaml=snapshot/10_basic/Create a source only snapshot and then restore it} failing

:StorageEngine/MappingThe storage related side of mappingsThe storage related side of mappings

>test-failureTriaged test failures from CITriaged test failures from CI

needs:riskRequires assignment of a risk label (low, medium, blocker)Requires assignment of a risk label (low, medium, blocker)

Team:StorageEngine

Status: Open.

#148917 In elastic/elasticsearch;

· elasticsearchmachine opened on May 12, 2026

Make reindex and friends limit the size in bytes of their search responses

:Distributed/ReindexIssues relating to reindex that are not caused by issues further downIssues relating to reindex that are not caused by issues further down

>enhancement

Team:DistributedMeta label for distributed team.Meta label for distributed team.

Status: Open.

#148916 In elastic/elasticsearch;

· PeteGillinElastic opened on May 12, 2026

[Inference API] Add Reasoning fields to supported service task_settings

:SearchOrg/InferenceLabel for the Search Inference teamLabel for the Search Inference team

>enhancement

Feature:GenAIFeatures around GenAIFeatures around GenAI

Team:Search - Inference

Status: Open.

#148909 In elastic/elasticsearch;

· jonathan-buttner opened on May 12, 2026