…#264134) (#264482)

# Backport

This will backport the following commits from `main` to `9.4`:
- [[Lens as code] Fix temporal scale on x axis and histogram brush
(#264134)](#264134)

<!--- Backport version: 9.6.6 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

<!--BACKPORT [{"author":{"name":"Marco
Vettorello","email":"marco.vettorello@elastic.co"},"sourceCommit":{"committedDate":"2026-04-20T16:40:37Z","message":"[Lens
as code] Fix temporal scale on x axis and histogram brush
(#264134)\n\n## Summary\n\nAPI generated charts currently doesn't
contain information if a XY chart\nis actually a time based chart or a
categorical chart.\nWe have left this information to be computed/decided
at runtime (as it's\ncurrently done when you create a chart from the
Lens UI).\nBut information about the current timeField is required:\n-
to filter the chart in the configured time range\n- to property assign
the X axis scale type\n- to enable the timeseries brushing\n\nThis PR
fixes this problem by correctly picking the timeField when\nnecessary
and clear the dataview cache that was polluted with the\ninitial adhoc
dataview without timefield.\n\nRight after ESQL query is executed, I'm
adjusting the x scale to time if\nthe table column layer type is
date.\n\nFor ESQL folks, I've just extracted the getESQLTimeField into
its own\nfile, so it can be easily reused without the need to touch the
DataViews\nas it was initially used.\n\n\n\nfix
https://github.com/elastic/kibana/issues/262425\nfix
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as code] Fix temporal scale on x axis and histogram
brush","number":264134,"url":"https://github.com/elastic/kibana/pull/264134","mergeCommit":{"message":"[Lens
as code] Fix temporal scale on x axis and histogram brush
(#264134)\n\n## Summary\n\nAPI generated charts currently doesn't
contain information if a XY chart\nis actually a time based chart or a
categorical chart.\nWe have left this information to be computed/decided
at runtime (as it's\ncurrently done when you create a chart from the
Lens UI).\nBut information about the current timeField is required:\n-
to filter the chart in the configured time range\n- to property assign
the X axis scale type\n- to enable the timeseries brushing\n\nThis PR
fixes this problem by correctly picking the timeField when\nnecessary
and clear the dataview cache that was polluted with the\ninitial adhoc
dataview without timefield.\n\nRight after ESQL query is executed, I'm
adjusting the x scale to time if\nthe table column layer type is
date.\n\nFor ESQL folks, I've just extracted the getESQLTimeField into
its own\nfile, so it can be easily reused without the need to touch the
DataViews\nas it was initially used.\n\n\n\nfix
https://github.com/elastic/kibana/issues/262425\nfix
https://github.com/elastic/kibana/issues/262181","sha":"fb3adeae36ecd2d5c416213bd9bdfb11a5410816"}},"sourceBranch":"main","suggestedTargetBranches":["9.4"],"targetPullRequestStates":[{"branch":"9.4","label":"v9.4.0","branchLabelMappingKey":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"state":"NOT_CREATED"},{"branch":"main","label":"v9.5.0","branchLabelMappingKey":"^v9.5.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/264134","number":264134,"mergeCommit":{"message":"[Lens
as code] Fix temporal scale on x axis and histogram brush
(#264134)\n\n## Summary\n\nAPI generated charts currently doesn't
contain information if a XY chart\nis actually a time based chart or a
categorical chart.\nWe have left this information to be computed/decided
at runtime (as it's\ncurrently done when you create a chart from the
Lens UI).\nBut information about the current timeField is required:\n-
to filter the chart in the configured time range\n- to property assign
the X axis scale type\n- to enable the timeseries brushing\n\nThis PR
fixes this problem by correctly picking the timeField when\nnecessary
and clear the dataview cache that was polluted with the\ninitial adhoc
dataview without timefield.\n\nRight after ESQL query is executed, I'm
adjusting the x scale to time if\nthe table column layer type is
date.\n\nFor ESQL folks, I've just extracted the getESQLTimeField into
its own\nfile, so it can be easily reused without the need to touch the
DataViews\nas it was initially used.\n\n\n\nfix
https://github.com/elastic/kibana/issues/262425\nfix
https://github.com/elastic/kibana/issues/262181","sha":"fb3adeae36ecd2d5c416213bd9bdfb11a5410816"}}]}]
BACKPORT-->

Co-authored-by: Marco Vettorello <marco.vettorello@elastic.co>

The lens entry bundle was 72-83B over its 86,000B page-load limit after
rebasing this branch on main. Nothing in this PR's scope
(kbn-unified-chart-section-viewer + one Discover test spec) can reach
lens's bundle — a codebase-wide grep shows zero imports of
@kbn/unified-chart-section-viewer from x-pack/platform/plugins/shared/lens,
and a local dist build's stats.json contains no matching module paths.

Cumulative drift from recent Lens-as-code commits that merged into main
(e.g., elastic#262871, elastic#264134, elastic#261581, elastic#264147, elastic#263810) pushed the entry
bundle just over the line. Raising the limit here is the documented
path when no in-PR contribution is found.

Limit set via `node scripts/build_kibana_platform_plugins --focus lens --update-limits`.