docs(2meet-data-optimizer): correct the 1.4.0 upgrade step for the copy index
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- Replace the index only on tables listed in tmdo_post_status_columns (ALTER ADD idx_post_status_date_id / DROP idx_post_status_date) - Warn that `wp tmdo post-status-sync` also adds and backfills copy columns on every other post group (large ALTER + UPDATE) - Found in the 2.4 rollout (dev21: aeav_only, over ten million posts)
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@@ -9,7 +9,7 @@ Versioning follows [Semantic Versioning](https://semver.org/).
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## [1.4.0] — 2026-09-28 — 百萬級 listing 的路由排序與日期查詢(hardening 2.4)
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**性質**:效能 + 修正。無 schema 變更;post status/date 副本的索引改為三欄(`wp tmdo post-status-sync` 就地替換)。
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**性質**:效能 + 修正。無 schema 變更;post status/date 副本的索引改為三欄(見「升級後」)。
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搭配 HivePress AddOn 0.5.0。來源:dev36 第 3 階壓測(130 萬 listing、121 萬 product、6.2 萬 vendor)。
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### Changed
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@@ -41,9 +41,13 @@ Versioning follows [Semantic Versioning](https://semver.org/).
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### 升級後
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- 已啟用 post status/date 副本的站(`tmdo_post_status_columns` 有 `ready` 的 group)執行一次
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`wp tmdo post-status-sync`:替換索引並重新同步副本(dev36 130 萬列約 75 s)。未執行前
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copy route 照常運作,只是維持 1.3.0 的速度。
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- 只需替換索引:對 `tmdo_post_status_columns` 列出的每個 group 表執行
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`ALTER TABLE <表> ADD INDEX idx_post_status_date_id (post_status, post_date, post_id), DROP INDEX idx_post_status_date`
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(空表瞬間完成,dev36 130 萬列約 5 s)。未替換前 copy route 照常運作,只是維持 1.3.0 的速度。
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- **不要為了換索引執行 `wp tmdo post-status-sync`**:它除了替換索引,還會替**所有**尚未有副本的
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post group 加上 `post_status` / `post_date` 欄位並逐列回填(大表 ALTER + 全表 UPDATE;dev36
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130 萬列約 75 s,上千萬列的站更久)。只有要讓更多 group 啟用 copy route 時才執行,並先在
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離峰時段以 `--dry-run` 確認列數。
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- 效能數字(dev36 前台,routed):價格區間 0.34 s、價格排序 0.37 s、時薪排序 0.35 s、
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評分排序 0.51 s、關鍵字 + 價格 0.59 s(原生 6–43 s)。
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