docs(adr): 0013 — aggregate push-down via zone-map stats#123
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Adds section 6: the vortex.stats zone-map enables answering SUM / COUNT / MIN / MAX from the per-zone stats table without decoding data (two-tier reduce: whole-zone from stats, residual boundary zones streamed). Ties the planned NULL_COUNT + SUM writer zone stats to a concrete reader-side payoff. Co-Authored-By: Claude Opus 4.8 <[email protected]>
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Adds section 6: the vortex.stats zone-map enables answering SUM / COUNT /
MIN / MAX from the per-zone stats table without decoding data (two-tier
reduce: whole-zone from stats, residual boundary zones streamed). Ties the
planned NULL_COUNT + SUM writer zone stats to a concrete reader-side payoff.
Co-Authored-By: Claude Opus 4.8 [email protected]