util.sqlite3: Don't cache prepared statements for one-off queries
The :execute method is mainly used for one-off queries such as creating
tables and indices. There is no need to cache this prepared statement,
as those queries are only done on startup.
Further, prepared statements can't be reused without being reset, so
this was likely broken anyway.
--- a/util/sqlite3.lua Sat Jun 10 22:02:15 2023 +0200
+++ b/util/sqlite3.lua Sat Jun 10 22:20:26 2023 +0200
@@ -163,6 +163,7 @@
function engine:ondisconnect() -- luacheck: ignore 212/self
-- Override from create_engine()
end
+
function engine:execute(sql, ...)
local success, err = self:connect();
if not success then return success, err; end
@@ -178,20 +179,17 @@
return true;
end
- local stmt = prepared[sql];
+ local stmt, err = self.conn:prepare(sql);
if not stmt then
- local err;
- stmt, err = self.conn:prepare(sql);
- if not stmt then
- err = sqlite_errors.new(err);
- err.text = self.conn:errmsg();
- return stmt, err;
- end
- prepared[sql] = stmt;
+ err = sqlite_errors.new(err);
+ err.text = self.conn:errmsg();
+ return stmt, err;
end
local ret = stmt:bind_values(...);
- if ret ~= lsqlite3.OK then return nil, sqlite_errors.new(ret, { message = self.conn:errmsg() }); end
+ if ret ~= lsqlite3.OK then
+ return nil, sqlite_errors.new(ret, { message = self.conn:errmsg() });
+ end
return stmt;
end