---
title: MDQueryBatchingParams
framework: coreservices
role: symbol
role_heading: Structure
path: coreservices/mdquerybatchingparams
---

# MDQueryBatchingParams

Structure containing the progress notification batchingparameters of a MDQuery.

## Declaration

```swift
struct MDQueryBatchingParams
```

## Overview

Overview The default batching parameters are undefined and subjectto change.

## Topics

### Initializers

- [init()](coreservices/mdquerybatchingparams/1447614-init.md)
- [init(first_max_num:first_max_ms:progress_max_num:progress_max_ms:update_max_num:update_max_ms:)](coreservices/mdquerybatchingparams/1443087-init.md)

### Instance Properties

- [first_max_ms](coreservices/mdquerybatchingparams/1413073-first_max_ms.md)
- [first_max_num](coreservices/mdquerybatchingparams/1413089-first_max_num.md)
- [progress_max_ms](coreservices/mdquerybatchingparams/1413043-progress_max_ms.md)
- [progress_max_num](coreservices/mdquerybatchingparams/1413036-progress_max_num.md)
- [update_max_ms](coreservices/mdquerybatchingparams/1413034-update_max_ms.md)
- [update_max_num](coreservices/mdquerybatchingparams/1413068-update_max_num.md)