--- title: "GroupBySchema" slug: "common-apidatatype-csanalysisgroupnyschema" updated: 2026-09-17T09:25:03Z published: 2026-09-17T09:25:03Z canonical: "api.ncloud-docs.com/common-apidatatype-csanalysisgroupnyschema" --- > ## Documentation Index > Fetch the complete documentation index at: https://api.ncloud-docs.com/llms.txt > Use this file to discover all available pages before exploring further. # GroupBySchema Available in Classic This is the query information to group in query analysis. ## Syntax The syntax is as follows. ``` private String field; private String field_value; private int max_size; ``` ## Field The following describes the fields. | Field | Type | Required | Description | | --- | --- | --- | --- | | `field` | [QueryAnalysisField](/docs/en/common-apidatatype-csanalysisfieldenum) | Required | Set aggregation fields | | `field_value` | String | Optional | Return only field values that match the parameter | | `max_size` | Integer | Required | Maximum size returned |