discord9 bf97de2ad1 feat(promql): compile subqueries with deferred grid materialization (#9835) ...

Compile range functions over explicit/default-step, offset, anchored, and nested subqueries using the shared range-evaluator grid calculation. Retain complete sampled coverage and reject empty child grids explicitly.

Keep compilation allocation proportional to plan structure, not timestamp count: validate deferred root and child grids; preserve eager EvalGrid::try_new; materialize shared timestamps fallibly only when a consumer requests them. Migrate Rust timestamp-buffer callers to Result without changing wire or persisted formats.

Regression coverage includes grid phase/coverage, rounded sampled endpoints, offset overflow, huge and nested compile-only grids, sparse gathering, sharing, and allocation-error propagation. Deferred compilation does not bound execution memory. No public Fused entrypoint or Scalar runtime is added here.

Signed-off-by: discord9 <55937128+discord9@users.noreply.github.com>

2026-10-22 16:48:41 +08:00

..

src

feat(promql): compile subqueries with deferred grid materialization (#9835)

2026-10-22 16:48:41 +08:00

Cargo.toml

feat(promql): compile subqueries with deferred grid materialization (#9835)

2026-10-22 16:48:41 +08:00