74aa578a2d
The N-min-read chip derived reading time via LENGTH(content) over the full article-body TEXT column on every listing render. LENGTH can't use an index, so SQLite read each row's whole body per request on the hottest path. Cache the character count in a content_chars column filled at insert time (backfilled for existing rows), and point StoryContentLengths at it.
181 lines
7.8 KiB
Go
181 lines
7.8 KiB
Go
package storage
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const schema = `
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CREATE TABLE IF NOT EXISTS stories (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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guid TEXT UNIQUE NOT NULL,
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headline TEXT NOT NULL,
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lede TEXT,
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content TEXT,
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content_chars INTEGER NOT NULL DEFAULT 0,
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image_url TEXT,
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article_url TEXT NOT NULL,
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url_canonical TEXT,
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headline_norm TEXT,
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source TEXT NOT NULL,
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platforms TEXT,
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channel TEXT,
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classified INTEGER NOT NULL DEFAULT 0,
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paywalled INTEGER NOT NULL DEFAULT 0,
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seen_at INTEGER NOT NULL,
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published_at INTEGER
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);
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CREATE TABLE IF NOT EXISTS post_log (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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guid TEXT NOT NULL,
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channel TEXT NOT NULL,
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event_id TEXT,
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url_canonical TEXT,
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posted_at INTEGER NOT NULL,
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forced INTEGER NOT NULL DEFAULT 0
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);
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CREATE TABLE IF NOT EXISTS round_robin_state (
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id INTEGER PRIMARY KEY CHECK (id = 1),
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last_channel TEXT,
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last_tick_at INTEGER NOT NULL DEFAULT 0
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);
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CREATE TABLE IF NOT EXISTS reactions (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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post_guid TEXT NOT NULL,
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channel TEXT NOT NULL,
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event_id TEXT NOT NULL,
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emoji TEXT NOT NULL,
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user_id TEXT NOT NULL,
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reacted_at INTEGER NOT NULL
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);
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CREATE TABLE IF NOT EXISTS user_preferences (
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user_sub TEXT PRIMARY KEY,
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prefs TEXT NOT NULL,
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username TEXT,
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email TEXT,
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updated_at INTEGER NOT NULL
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);
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-- Per-user read + bookmark state for signed-in visitors, keyed by OIDC subject.
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-- One row carries both signals; a NULL timestamp means "not set". A row with
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-- both timestamps NULL is meaningless and is pruned, so presence of a row means
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-- the story is read, bookmarked, or both.
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CREATE TABLE IF NOT EXISTS user_story_state (
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user_sub TEXT NOT NULL,
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story_id INTEGER NOT NULL,
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read_at INTEGER,
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bookmarked_at INTEGER,
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PRIMARY KEY (user_sub, story_id)
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);
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-- Aggregate web usage. page_views holds running view counts keyed by a coarse
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-- path label ("home", channel slug, …) and the UTC day, so we can report both
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-- all-time totals and per-day breakdowns without storing any per-request rows.
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CREATE TABLE IF NOT EXISTS page_views (
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path TEXT NOT NULL,
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day INTEGER NOT NULL, -- unix day (floor(unix / 86400)), UTC
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views INTEGER NOT NULL DEFAULT 0,
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PRIMARY KEY (path, day)
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);
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-- Per-source poll health, one row per configured feed (keyed by source name).
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-- Written on every poll (success and failure) so the owner-facing dashboard can
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-- show which feeds are healthy without keeping the poller's in-memory state.
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-- last_success_at / last_item_count survive failures so a broken feed still
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-- shows when it last worked and how much it last returned.
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CREATE TABLE IF NOT EXISTS source_health (
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source TEXT PRIMARY KEY,
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last_poll_at INTEGER, -- unix, most recent poll attempt
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last_success_at INTEGER, -- unix, most recent successful fetch
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last_error TEXT, -- last failure message ('' when healthy)
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consecutive_failures INTEGER NOT NULL DEFAULT 0,
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last_item_count INTEGER NOT NULL DEFAULT 0, -- items in the last successful fetch
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updated_at INTEGER NOT NULL
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);
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-- Web Push subscriptions for signed-in users, one row per browser/device
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-- endpoint. p256dh + auth are the client's encryption keys (RFC 8291); the
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-- server needs them to encrypt each push. last_notified_at is the per-endpoint
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-- digest watermark: the sender only counts stories seen after it. A user can
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-- have several endpoints (phone, desktop) — each is notified independently.
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CREATE TABLE IF NOT EXISTS push_subscriptions (
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endpoint TEXT PRIMARY KEY,
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user_sub TEXT NOT NULL,
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p256dh TEXT NOT NULL,
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auth TEXT NOT NULL,
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created_at INTEGER NOT NULL,
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last_notified_at INTEGER NOT NULL
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);
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-- Privacy-preserving daily unique estimate. visitor is a salted hash of
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-- IP+User-Agent; the salt rotates every UTC day and is never persisted, so the
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-- hashes are irreversible and cannot be linked across days. We keep only enough
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-- to dedup within a single day, then prune.
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CREATE TABLE IF NOT EXISTS daily_visitors (
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day INTEGER NOT NULL,
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visitor TEXT NOT NULL,
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PRIMARY KEY (day, visitor)
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);
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-- Per-story read counts, keyed by story id and UTC day. Incremented whenever a
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-- visitor opens a story in reader mode (/api/article). The day dimension lets
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-- us surface "popular this week" without a separate rollup; summing across all
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-- days gives the all-time count shown on cards. Rows age out with their story
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-- via the foreign-key-less prune in RunMaintenance.
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CREATE TABLE IF NOT EXISTS story_views (
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story_id INTEGER NOT NULL,
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day INTEGER NOT NULL, -- unix day (floor(unix / 86400)), UTC
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views INTEGER NOT NULL DEFAULT 0,
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PRIMARY KEY (story_id, day)
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);
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CREATE UNIQUE INDEX IF NOT EXISTS idx_post_log_guid_channel ON post_log(guid, channel);
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CREATE INDEX IF NOT EXISTS idx_post_log_event_id ON post_log(event_id);
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CREATE INDEX IF NOT EXISTS idx_post_log_channel_posted ON post_log(channel, posted_at);
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CREATE INDEX IF NOT EXISTS idx_post_log_canonical_channel ON post_log(url_canonical, channel, posted_at);
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CREATE INDEX IF NOT EXISTS idx_stories_classified_source ON stories(classified, source);
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CREATE INDEX IF NOT EXISTS idx_stories_channel_classified_seen ON stories(channel, classified, seen_at DESC);
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CREATE INDEX IF NOT EXISTS idx_stories_classified_seen ON stories(classified, seen_at DESC);
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CREATE INDEX IF NOT EXISTS idx_stories_image_url ON stories(image_url) WHERE image_url IS NOT NULL AND image_url <> '';
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CREATE UNIQUE INDEX IF NOT EXISTS idx_stories_url_canonical ON stories(url_canonical) WHERE url_canonical IS NOT NULL AND url_canonical <> '';
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CREATE UNIQUE INDEX IF NOT EXISTS idx_stories_source_headline_norm ON stories(source, headline_norm) WHERE headline_norm IS NOT NULL AND headline_norm <> '';
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CREATE INDEX IF NOT EXISTS idx_reactions_post_guid ON reactions(post_guid);
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CREATE UNIQUE INDEX IF NOT EXISTS idx_reactions_event_id ON reactions(event_id);
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CREATE INDEX IF NOT EXISTS idx_page_views_day ON page_views(day);
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CREATE INDEX IF NOT EXISTS idx_daily_visitors_day ON daily_visitors(day);
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CREATE INDEX IF NOT EXISTS idx_story_views_day ON story_views(day);
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CREATE INDEX IF NOT EXISTS idx_user_state_bookmarks ON user_story_state(user_sub, bookmarked_at) WHERE bookmarked_at IS NOT NULL;
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CREATE INDEX IF NOT EXISTS idx_user_state_reads ON user_story_state(user_sub, read_at) WHERE read_at IS NOT NULL;
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CREATE INDEX IF NOT EXISTS idx_push_sub_user ON push_subscriptions(user_sub);
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`
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const ftsSchema = `
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CREATE VIRTUAL TABLE stories_fts USING fts5(
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guid UNINDEXED,
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headline,
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lede,
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source UNINDEXED,
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platforms UNINDEXED,
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content='stories',
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content_rowid='id'
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);
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`
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const ftsTriggers = `
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CREATE TRIGGER stories_fts_insert AFTER INSERT ON stories BEGIN
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INSERT INTO stories_fts(rowid, guid, headline, lede, source, platforms)
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VALUES (new.id, new.guid, new.headline, new.lede, new.source, new.platforms);
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END;
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CREATE TRIGGER stories_fts_delete AFTER DELETE ON stories BEGIN
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INSERT INTO stories_fts(stories_fts, rowid, guid, headline, lede, source, platforms)
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VALUES ('delete', old.id, old.guid, old.headline, old.lede, old.source, old.platforms);
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END;
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CREATE TRIGGER stories_fts_update AFTER UPDATE ON stories BEGIN
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INSERT INTO stories_fts(stories_fts, rowid, guid, headline, lede, source, platforms)
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VALUES ('delete', old.id, old.guid, old.headline, old.lede, old.source, old.platforms);
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INSERT INTO stories_fts(rowid, guid, headline, lede, source, platforms)
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VALUES (new.id, new.guid, new.headline, new.lede, new.source, new.platforms);
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END;
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`
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