85 lines
2.8 KiB
Rust
85 lines
2.8 KiB
Rust
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//! SQL strings for the current schema. Versioned; [`migrate`](super::migrate)
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//! drives the upgrade path.
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/// Pragmas applied on every connection open. Tuned for write throughput during
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/// indexing; a clean shutdown re-enables journal_mode/synchronous via
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/// [`super::repo::checkpoint_and_close`].
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pub const PRAGMAS_FAST: &str = "
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PRAGMA journal_mode = OFF;
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PRAGMA synchronous = 0;
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PRAGMA cache_size = 10000;
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PRAGMA temp_store = MEMORY;
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PRAGMA foreign_keys = ON;
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";
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/// The full current schema. Applied by [`migrate::open_and_migrate`] when
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/// the DB is fresh or has been wiped during upgrade.
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///
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/// FTS5 is a *regular* (non-contentless) virtual table so `snippet()` and
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/// `highlight()` can read the stored text. This also means there is no
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/// separate `documents` table — FTS5 *is* the text store.
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pub const SCHEMA_CURRENT: &str = r#"
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CREATE TABLE schema_info (
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key TEXT PRIMARY KEY,
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value TEXT NOT NULL
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);
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CREATE TABLE files (
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id INTEGER PRIMARY KEY,
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name TEXT NOT NULL,
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path TEXT NOT NULL UNIQUE,
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parent TEXT NOT NULL,
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size INTEGER NOT NULL,
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mtime INTEGER NOT NULL,
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inode INTEGER,
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device_id INTEGER,
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mime TEXT,
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type INTEGER NOT NULL DEFAULT 0,
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basic_state INTEGER NOT NULL DEFAULT 0, -- 0=pending 1=done 2=failed
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content_state INTEGER NOT NULL DEFAULT 0, -- 0=pending 1=done 2=failed 3=n/a
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failure_msg TEXT,
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hash BLOB
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);
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CREATE INDEX idx_files_parent ON files(parent);
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CREATE INDEX idx_files_mtime ON files(mtime);
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CREATE INDEX idx_files_type ON files(type);
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CREATE INDEX idx_files_mime ON files(mime);
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CREATE INDEX idx_files_hash ON files(hash);
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CREATE INDEX idx_files_content_pending ON files(id) WHERE content_state = 0;
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CREATE TABLE properties (
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file_id INTEGER NOT NULL REFERENCES files(id) ON DELETE CASCADE,
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key TEXT NOT NULL,
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value TEXT NOT NULL,
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PRIMARY KEY (file_id, key)
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);
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CREATE TABLE failed_files (
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file_id INTEGER PRIMARY KEY REFERENCES files(id) ON DELETE CASCADE,
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reason TEXT,
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ts INTEGER NOT NULL
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);
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CREATE TABLE config_validation (
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key TEXT PRIMARY KEY,
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value TEXT NOT NULL
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);
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"#;
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/// FTS5 virtual table DDL. Separate because the tokenizer is config-driven.
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///
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/// Regular (not contentless, not external-content) FTS5: the table stores
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/// its own text, which enables `snippet()`/`highlight()` and makes row-level
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/// INSERT/UPDATE/DELETE work with normal SQL semantics. `rowid` is supplied
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/// by the caller and must equal `files.id`.
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pub fn fts_create_sql(tokenizer: &str) -> String {
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format!(
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"CREATE VIRTUAL TABLE searchabletext USING fts5(\
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name, text, properties, \
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tokenize='{}'\
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);",
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tokenizer.replace('\'', "''")
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)
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}
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