Add execution stats to data-node fragment slow log#2
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himshikhagupta merged 1 commit intoJun 1, 2026
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Introduces FragmentExecutionStats record with execution shape fields derived from the resolved plan alternative — the actual plan selected for execution on this node. Fields (all zero-cost — field reads from existing objects): - rows_produced: output row count (already counted) - used_secondary_index: from resolved plan's DelegationDescriptor - delegated_predicate_count: number of predicates delegated to secondary index — explains cost when used_secondary_index=true - filter_tree_shape: CONJUNCTIVE vs INTERLEAVED_BOOLEAN_EXPRESSION — explains why delegation is expensive (complex boolean evaluation) - has_partial_aggregate: whether the fragment does aggregation — explains high compute with low output rows - task_id: from the existing task object - id (X-Opaque-Id): from task headers Also refactors executeFragmentStreamingAsync to surface the resolved plan via ResolvedExecution wrapper, ensuring stats reflect the exact plan alternative that was executed. Signed-off-by: Bukhtawar Khan <bukhtawa@amazon.com>
himshikhagupta
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Introduces FragmentExecutionStats record with execution shape fields derived from the resolved plan alternative — the actual plan selected for execution on this node.
Fields (all zero-cost — field reads from existing objects):
Also refactors executeFragmentStreamingAsync to surface the resolved plan via ResolvedExecution wrapper, ensuring stats reflect the exact plan alternative that was executed.
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[Describe what this change achieves]
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Resolves #[Issue number to be closed when this PR is merged]
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