If true, the result of the first field grouping command is used as the main result list in the response, using group.format=simple

# SolrQuery::setGroupMain

(PECL solr >= 2.2.0)

SolrQuery::setGroupMain — If true, the result of the first field grouping command is used as the main result list in the response, using group.format=simple

### 说明

public function SolrQuery::setGroupMain(string `$value`): SolrQuery

If `true`, the result of the first field grouping command is used as the main result list in the response, using `group.format=simple`.

### 参数

`value`

  If `true`, the result of the first field grouping command is used as the main result list in the response.

### 返回值

Returns an instance of SolrQuery.

### 参见

- SolrQuery::setGroup() - Enable/Disable result grouping (group parameter)
- SolrQuery::addGroupField() - Add a field to be used to group results
- SolrQuery::addGroupFunction() - Allows grouping results based on the unique values of a function query (group.func parameter)
- SolrQuery::addGroupQuery() - Allows grouping of documents that match the given query
- SolrQuery::addGroupSortField() - Add a group sort field (group.sort parameter)
- SolrQuery::setGroupFacet() - Sets group.facet parameter
- SolrQuery::setGroupOffset() - Sets the group.offset parameter
- SolrQuery::setGroupMain()
- SolrQuery::setGroupNGroups() - If true, Solr includes the number of groups that have matched the query in the results
- SolrQuery::setGroupTruncate() - If true, facet counts are based on the most relevant document of each group matching the query
- SolrQuery::setGroupFormat() - Sets the group format, result structure (group.format parameter)
- SolrQuery::setGroupCachePercent() - Enables caching for result grouping

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