Add support for query parameters, JOINs, SELECT * and three-part table names

src/sqlmem/engine.py

@@ -1,4 +1,5 @@
 import sqlite3
+from typing import cast
 
 from loguru import logger
 from sqlalchemy.engine import Engine
@@ -6,7 +7,7 @@ from sqlalchemy.engine import Engine
 from .cache import CacheManager
 from .config import BACKUP_INTERVAL_SECONDS, CACHE_DB_PATH
 from .executor import QueryExecutor
-from .parser import parse
+from .parser import Params, parse
 from .registry import ColumnRegistry
 from .stats import Stats, StatsCollector
 
@@ -25,10 +26,10 @@ class CachingEngine:
     def stats(self) -> Stats:
         return self._stats.snapshot(self._cache.connection)
 
-    def execute(self, sql: str) -> list[dict]:
-        parsed = parse(sql)
+    def execute(self, sql: str, params: Params = None) -> list[dict]:
+        parsed = parse(sql, params)
         with self._source_engine.connect() as sa_conn:
-            raw_conn: sqlite3.Connection = sa_conn.connection.dbapi_connection
+            raw_conn = cast(sqlite3.Connection, sa_conn.connection.dbapi_connection)
             executor = QueryExecutor(self._cache, self._registry, raw_conn, self._stats)
             return executor.execute(parsed)