mogno export+import uses EJSON

plugins/dbgate-plugin-mongo/src/backend/createBulkInsertStream.js

@@ -1,5 +1,6 @@
 const ObjectId = require('mongodb').ObjectId;
 const { getLogger } = global.DBGATE_PACKAGES['dbgate-tools'];
+const { EJSON } = require('bson');
 
 const logger = getLogger('mongoBulkInsert');
 
@@ -26,7 +27,7 @@ function createBulkInsertStream(driver, stream, pool, name, options) {
         ...row,
       };
     }
-    writable.buffer.push(row);
+    writable.buffer.push(EJSON.deserialize(row));
   };
 
   writable.checkStructure = async () => {

plugins/dbgate-plugin-mongo/src/backend/driver.js

@@ -245,8 +245,23 @@ const driver = {
     const db = await getScriptableDb(pool);
     exprValue = func(db, ObjectId.createFromHexString);
 
+    const pass = new stream.PassThrough({
+      objectMode: true,
+      highWaterMark: 100,
+    });
+
+    exprValue
+      .forEach((row) => pass.write(transformMongoData(row)))
+      .then(() => {
+        pass.end();
+        // pass.end(() => {
+        //   pass.emit('end');
+        // })
+      });
+
+    return pass;
     // return directly stream without header row
-    return exprValue.stream();
+    // return exprValue.stream();
 
     // pass.write(structure || { __isDynamicStructure: true });
     // exprValue.on('data', (row) => pass.write(row));