Support postgres schemas

Author: jakubriedl

src/persisters/common/database/common.ts

@@ -5,7 +5,7 @@ import type {
 } from '../../../@types/persisters/index.d.ts';
 import {arrayJoin, arrayMap} from '../../../common/array.ts';
 import {IdSet} from '../../../common/set.ts';
-import {COMMA, strReplace, TRUE} from '../../../common/strings.ts';
+import {COMMA, strReplace, strSplit, TRUE} from '../../../common/strings.ts';
 
 export type QuerySchema = (
   executeCommand: DatabaseExecuteCommand,
@@ -55,7 +55,11 @@ export const getWrappedCommand = (
       }
     : executeCommand;
 
-export const escapeId = (str: string) => `"${strReplace(str, /"/g, '""')}"`;
+export const escapeId = (str: string) =>
+  arrayJoin(
+    arrayMap(strSplit(str, '.'), (part) => `"${strReplace(part, /"/g, '""')}"`),
+    '.',
+  );
 
 export const escapeIds = (...ids: Ids) => escapeId(arrayJoin(ids, '_'));