Pulse Documentation

name: op-agg-min
description: Smallest non-null value of the field.
kind: operator
category: AGG
operator: AGG_MIN
type: reference
applies_to: process, compose, predict
examples_tags: [financial, streaming-friendly]

Use when

Smallest value of a numeric or date field, over all rows or per group.

Questions it answers:

• What is the earliest order date in each region?
• Are there negative or impossible values in the age field?

Use something else:

• AGG_MAX when you want the largest value.
• AGG_PERCENTILE when one extreme row would mislead and you want a low value that ignores it.

Params

None.

Inputs

Output

Scalar float64. Per-group when wired under a grouper.

Components

Universal floor {n, n_null} plus operator-specific:

• Mergeability: Mergeable
• Streaming: per-chunk emits running min

Gotchas

• Null rows skipped; n_null counts them.
• All-null cohort → emits NaN (sentinel for “no data”).
• Decimal128 preserved on input; float64 output coerces the comparison space.

See

• pulse_examples_search tags=[streaming-friendly]
• Skills: aggregation-design, response-components