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Usage projection:derive-on-demand vs durable daily aggregates #37
changed the title [-]存储与汇总粒度:derive vs 日汇总;json/sqlite(ADR-0005)[/-][+]Usage projection:derive-on-demand vs durable daily aggregates[/+]on Sep 20, 2026
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[-]存储与汇总粒度:derive vs 日汇总;json/sqlite(ADR-0005)[/-][+]Usage projection:derive-on-demand vs durable daily aggregates[/+]DoodleBears commentedon Sep 28, 2026
Resolved 2026-09-29(v1.0):采用 durable daily aggregates。Usage module 在
botharness.db自持(bot, day, provider, model, purpose)token 日桶,可从 DSH Session 日志重建;live 增量 + 迟到事件修正;金额不落库(价格 era 重算留 #35 / #39)。bucket 由assistant/message.usage+assistant/attemptstream usage 经deriveTurnTokenUsage折出,sessionProjections.tokenUsage只做每 Session 对账。实现与 ADR-0005 / #79 修订随 #428。详见 #34 Decisions。