xfy
c6161764a9
- idx_posts_deleted_at: 回收站查询 WHERE deleted_at IS NOT NULL ORDER BY deleted_at DESC - idx_posts_created_at_admin: 管理后台全量列表 WHERE deleted_at IS NULL ORDER BY created_at DESC
14 lines
752 B
SQL
14 lines
752 B
SQL
-- 性能审计补充索引。
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-- 所有索引均为 CREATE INDEX IF NOT EXISTS，对已有数据库安全幂等。
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-- 回收站查询：trash.rs 中大量 WHERE deleted_at IS NOT NULL ... ORDER BY deleted_at DESC。
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-- 配合 list_deleted_posts 的 ORDER BY deleted_at DESC 分页。
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CREATE INDEX IF NOT EXISTS idx_posts_deleted_at
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ON posts(deleted_at DESC) WHERE deleted_at IS NOT NULL;
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-- 管理后台列表 list_posts：WHERE deleted_at IS NULL ORDER BY created_at DESC。
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-- 注意 002_posts.sql 已有 idx_posts_status_published（仅 published 分页），
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-- 这里补充未按 status 过滤的管理后台全量列表路径。
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CREATE INDEX IF NOT EXISTS idx_posts_created_at_admin
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ON posts(created_at DESC) WHERE deleted_at IS NULL;
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