fix pgGraphqlQuery with concurent search path (#5537)

packages/twenty-server/src/engine/api/graphql/workspace-query-runner/workspace-query-runner.service.ts

@@ -583,12 +583,22 @@ export class WorkspaceQueryRunnerService {
         )};
       `);
 
-    const results = await workspaceDataSource?.query<PGGraphQLResult>(
+    return await workspaceDataSource?.transaction(
+      async (transactionManager) => {
+        await transactionManager.query(`
+        SET search_path TO ${this.workspaceDataSourceService.getSchemaName(
+          workspaceId,
+        )};
+      `);
+
+        const results = transactionManager.query<PGGraphQLResult>(
           `SELECT graphql.resolve($1);`,
           [query],
         );
 
         return results;
+      },
+    );
   }
 
   private async parseResult<Result>(