docs: correct the 1.4.0 upgrade step for the copy index #9

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wpdev merged 1 commits from docs/1.4.0-upgrade-note into main 2026-09-28 00:08:57 +08:00

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Author SHA1 Message Date
wpdev 4b34851316 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)
2026-09-28 00:03:02 +08:00