Constant CREATE_STORE_TABLE_SQL 

pub const CREATE_STORE_TABLE_SQL: &str = r#"CREATE TABLE IF NOT EXISTS yugendb_store (
    namespace TEXT NOT NULL,
    collection TEXT NOT NULL,
    key TEXT NOT NULL,
    value BLOB NOT NULL,
    codec TEXT NOT NULL,
    created_at TEXT NOT NULL,
    updated_at TEXT NOT NULL,
    expires_at TEXT,
    PRIMARY KEY (namespace, collection, key)
);"#;

SQL statement that creates the main storage table.