diff --git a/packages/api/src/shell/queryReader.js b/packages/api/src/shell/queryReader.js
index a92092eb..8132d60e 100644
--- a/packages/api/src/shell/queryReader.js
+++ b/packages/api/src/shell/queryReader.js
@@ -1,14 +1,26 @@
 const requireEngineDriver = require('../utility/requireEngineDriver');
-const { decryptConnection } = require('../utility/crypting');
 const connectUtility = require('../utility/connectUtility');
 
-async function queryReader({ connection, sql }) {
-  console.log(`Reading query ${sql}`);
+async function queryReader({
+  connection,
+  query,
+  queryType,
+  // obsolete; use query instead
+  sql,
+}) {
+  // if (sql && json) {
+  //   throw new Error('Only one of sql or json could be set');
+  // }
+  // if (!sql && !json) {
+  //   throw new Error('One of sql or json must be set');
+  // }
+  console.log(`Reading query ${query || sql}`);
+  // else console.log(`Reading query ${JSON.stringify(json)}`);
 
   const driver = requireEngineDriver(connection);
-  const pool = await connectUtility(driver, connection, 'script');
+  const pool = await connectUtility(driver, connection, queryType == 'json' ? 'read' : 'script');
   console.log(`Connected.`);
-  return await driver.readQuery(pool, sql);
+  return queryType == 'json' ? await driver.readJsonQuery(pool, query) : await driver.readQuery(pool, query || sql);
 }
 
 module.exports = queryReader;
diff --git a/packages/datalib/src/GridDisplay.ts b/packages/datalib/src/GridDisplay.ts
index 439ac65e..ecec9051 100644
--- a/packages/datalib/src/GridDisplay.ts
+++ b/packages/datalib/src/GridDisplay.ts
@@ -574,6 +574,13 @@ export abstract class GridDisplay {
     return sql;
   }
 
+  getExportQueryJson(postprocessSelect = null) {
+    const select = this.createSelect({ isExport: true });
+    if (!select) return null;
+    if (postprocessSelect) postprocessSelect(select);
+    return select;
+  }
+
   getExportColumnMap() {
     const changesDefined = this.config.hiddenColumns?.length > 0 || this.config.addedColumns?.length > 0;
     if (this.isDynamicStructure && !changesDefined) {
diff --git a/packages/tools/src/driverBase.ts b/packages/tools/src/driverBase.ts
index 2b67ccdd..05058955 100644
--- a/packages/tools/src/driverBase.ts
+++ b/packages/tools/src/driverBase.ts
@@ -1,4 +1,4 @@
-import _compact from 'lodash/compact'
+import _compact from 'lodash/compact';
 import { SqlDumper } from './SqlDumper';
 import { splitQuery } from 'dbgate-query-splitter';
 import { dumpSqlSelect } from 'dbgate-sqltree';
@@ -105,4 +105,9 @@ export const driverBase = {
     const resp = await this.query(pool, dmp.s);
     return resp.rows;
   },
+  readJsonQuery(pool, select, structure) {
+    const dmp = this.createDumper();
+    dumpSqlSelect(dmp, select);
+    return this.readQuery(pool, dmp.s, structure);
+  },
 };
diff --git a/packages/types/engines.d.ts b/packages/types/engines.d.ts
index 22de715f..e4282af0 100644
--- a/packages/types/engines.d.ts
+++ b/packages/types/engines.d.ts
@@ -47,7 +47,7 @@ export interface EngineDriver {
   title: string;
   defaultPort?: number;
   databaseEngineTypes: string[];
-  readOnlySessions: boolean,
+  readOnlySessions: boolean;
   supportedKeyTypes: { name: string; label: string }[];
   supportsDatabaseUrl?: boolean;
   isElectronOnly?: boolean;
@@ -62,6 +62,7 @@ export interface EngineDriver {
   query(pool: any, sql: string, options?: QueryOptions): Promise<QueryResult>;
   stream(pool: any, sql: string, options: StreamOptions);
   readQuery(pool: any, sql: string, structure?: TableInfo): Promise<stream.Readable>;
+  readJsonQuery(pool: any, query: any, structure?: TableInfo): Promise<stream.Readable>;
   writeTable(pool: any, name: NamedObjectInfo, options: WriteTableOptions): Promise<stream.Writeable>;
   analyseSingleObject(
     pool: any,
diff --git a/packages/web/src/datagrid/CollectionDataGridCore.svelte b/packages/web/src/datagrid/CollectionDataGridCore.svelte
index 8709bc5d..18575af6 100644
--- a/packages/web/src/datagrid/CollectionDataGridCore.svelte
+++ b/packages/web/src/datagrid/CollectionDataGridCore.svelte
@@ -168,12 +168,24 @@
       .sort(${JSON.stringify(buildMongoSort($$props) || {})})`;
   }
 
-  export function exportGrid() {
+  function getExportQueryJson() {
+    return {
+      collection: pureName,
+      condition: buildGridMongoCondition($$props) || {},
+      sort: buildMongoSort($$props) || {},
+    };
+  }
+
+  export async function exportGrid() {
+    const coninfo = await getConnectionInfo({ conid });
     const initialValues: any = {};
     initialValues.sourceStorageType = 'query';
     initialValues.sourceConnectionId = conid;
     initialValues.sourceDatabaseName = database;
-    initialValues.sourceSql = getExportQuery();
+    initialValues.sourceQuery = coninfo.isReadOnly
+      ? JSON.stringify(getExportQueryJson(), undefined, 2)
+      : getExportQuery();
+    initialValues.sourceQueryType = coninfo.isReadOnly ? 'json' : 'native';
     initialValues.sourceList = [pureName];
     initialValues[`columns_${pureName}`] = display.getExportColumnMap();
     showModal(ImportExportModal, { initialValues });
@@ -204,7 +216,8 @@
         functionName: 'queryReader',
         props: {
           connection: extractShellConnection(coninfo, database),
-          sql: getExportQuery(),
+          queryType: coninfo.isReadOnly ? 'json' : 'native',
+          query: coninfo.isReadOnly ? getExportQueryJson() : getExportQuery(),
         },
       },
       fmt,
diff --git a/packages/web/src/datagrid/SqlDataGridCore.svelte b/packages/web/src/datagrid/SqlDataGridCore.svelte
index b7ec864b..c8eab659 100644
--- a/packages/web/src/datagrid/SqlDataGridCore.svelte
+++ b/packages/web/src/datagrid/SqlDataGridCore.svelte
@@ -129,12 +129,17 @@
   // $: console.log('GRIDER', grider);
   // $: if (onChangeGrider) onChangeGrider(grider);
 
-  export function exportGrid() {
+  export async function exportGrid() {
+    const coninfo = await getConnectionInfo({ conid });
+
     const initialValues: any = {};
     initialValues.sourceStorageType = 'query';
     initialValues.sourceConnectionId = conid;
     initialValues.sourceDatabaseName = database;
-    initialValues.sourceSql = display.getExportQuery();
+    initialValues.sourceQuery = coninfo.isReadOnly
+      ? JSON.stringify(display.getExportQueryJson(), undefined, 2)
+      : display.getExportQuery();
+    initialValues.sourceQueryType = coninfo.isReadOnly ? 'json' : 'native';
     initialValues.sourceList = display.baseTableOrSimilar ? [display.baseTableOrSimilar.pureName] : [];
     initialValues[`columns_${pureName}`] = display.getExportColumnMap();
     showModal(ImportExportModal, { initialValues });
@@ -189,7 +194,8 @@
         functionName: 'queryReader',
         props: {
           connection: extractShellConnection(coninfo, database),
-          sql: display.getExportQuery(),
+          queryType: coninfo.isReadOnly ? 'json' : 'native',
+          query: coninfo.isReadOnly ? display.getExportQueryJson() : display.getExportQuery(),
         },
       },
       fmt,
diff --git a/packages/web/src/impexp/SourceTargetConfig.svelte b/packages/web/src/impexp/SourceTargetConfig.svelte
index 43755fe2..900faa1e 100644
--- a/packages/web/src/impexp/SourceTargetConfig.svelte
+++ b/packages/web/src/impexp/SourceTargetConfig.svelte
@@ -21,6 +21,7 @@
   import FormSchemaSelect from './FormSchemaSelect.svelte';
   import FormTablesSelect from './FormTablesSelect.svelte';
   import { findEngineDriver } from 'dbgate-tools';
+import AceEditor from '../query/AceEditor.svelte';
 
   export let direction;
   export let storageTypeField;
@@ -137,12 +138,19 @@
   {#if storageType == 'query'}
     <div class="label">Query</div>
     <div class="sqlwrap">
-      <SqlEditor
-        value={$values.sourceSql}
-        on:input={e => setFieldValue('sourceSql', e.detail)}
-        {engine}
-        focusOnCreate
-      />
+      {#if $values.sourceQueryType == 'json'}
+        <AceEditor
+          value={$values.sourceQuery}
+          on:input={e => setFieldValue('sourceQuery', e.detail)}
+          mode="json"
+        />
+      {:else}
+        <SqlEditor
+          value={$values.sourceQuery}
+          on:input={e => setFieldValue('sourceQuery', e.detail)}
+          {engine}
+        />
+      {/if}
     </div>
   {/if}
 
diff --git a/packages/web/src/impexp/createImpExpScript.ts b/packages/web/src/impexp/createImpExpScript.ts
index 51fd04f4..8677b235 100644
--- a/packages/web/src/impexp/createImpExpScript.ts
+++ b/packages/web/src/impexp/createImpExpScript.ts
@@ -78,7 +78,8 @@ function getSourceExpr(extensions, sourceName, values, sourceConnection, sourceD
       {
         connection: sourceConnection,
         ...extractDriverApiParameters(values, 'source', sourceDriver),
-        sql: values.sourceSql,
+        queryType: values.sourceQueryType,
+        query: values.sourceQueryType == 'json' ? JSON.parse(values.sourceQuery) : values.sourceQuery,
       },
     ];
   }
diff --git a/plugins/dbgate-plugin-mongo/src/backend/driver.js b/plugins/dbgate-plugin-mongo/src/backend/driver.js
index 2f9c4d29..2977ff3a 100644
--- a/plugins/dbgate-plugin-mongo/src/backend/driver.js
+++ b/plugins/dbgate-plugin-mongo/src/backend/driver.js
@@ -325,6 +325,18 @@ const driver = {
       return { errorMessage: err.message };
     }
   },
+
+  readJsonQuery(pool, select, structure) {
+    const { collection, condition, sort } = select;
+
+    const db = pool.__getDatabase();
+    const res = db
+      .collection(collection)
+      .find(condition || {})
+      .sort(sort || {});
+
+    return res;
+  },
 };
 
 module.exports = driver;