fix: 给有 FK 依赖的建表脚本加数字前缀以保证字母序就是依赖序

desc/sql/community/10-comments.sql

@@ -0,0 +1,22 @@
+CREATE TABLE comments
+(
+    id         BIGINT PRIMARY KEY,
+    post_id    BIGINT      NOT NULL REFERENCES posts (id),
+    author_id  BIGINT      NOT NULL,
+    content    TEXT        NOT NULL,
+    like_count INT                  DEFAULT 0,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    deleted_at TIMESTAMPTZ
+);
+
+-- 基础索引
+CREATE INDEX idx_comments_post ON comments (post_id, created_at) WHERE deleted_at IS NULL;
+CREATE INDEX idx_comments_author ON comments (author_id, created_at DESC) WHERE deleted_at IS NULL;
+
+-- 三元组索引用于评论内容搜索
+CREATE INDEX idx_comments_content_trgm ON comments USING gin (content gin_trgm_ops)
+    WHERE deleted_at IS NULL;
+
+-- 热门评论索引
+CREATE INDEX idx_comments_post_likes ON comments (post_id, like_count DESC, created_at)
+    WHERE deleted_at IS NULL;