# SiblingMergeRule

Merges sibling spans that share an identical subtree signature and match a CompleteSpan SQL predicate. The earliest-start match is kept (with its children); the other matching same-signature siblings are removed and counted under grepr.merged_siblings.

**Type**: `object`

## Properties

- name: predicate (required)
  type: string
  description: Boolean SQL expression evaluated per span over the CompleteSpan schema. Uses the same fields and functions as head sampling predicates: top-level columns such as servicename, nested fields such as span.operationName, and VARIANT_VALUE(...) for span/resource attributes.