列存在性查询

ExistsQuery

获取特定字段存在值的数据。（表现为该行没有特定字段的Column）

$request = array(
    'table_name' => 'php_sdk_test',
    'index_name' => 'php_sdk_test_search_index',
    'search_query' => array(
        'offset' => 0,
        'limit' => 2,
        'get_total_count' => true,
        'query' => array(
            'query_type' => QueryTypeConst::EXISTS_QUERY,
            'query' => array(
                'field_name' => 'text'
            )
        )
    ),
    'columns_to_get' => array(
        'return_type' => ColumnReturnTypeConst::RETURN_SPECIFIED,
        'return_names' => array('keyword', 'long', 'array')
    )
);
$response = $otsClient->search($request);

$request = array(
    'table_name' => 'php_sdk_test',
    'index_name' => 'php_sdk_test_search_index',
    'search_query' => array(
        'offset' => 0,
        'limit' => 2,
        'get_total_count' => true,
        'query' => array(
            'query_type' => QueryTypeConst::NESTED_QUERY,
            'query' => array(
                'path' => "nested",
                'query' => array(
                    'query_type' => QueryTypeConst::EXISTS_QUERY,
                    'query' => array(
                        'field_name' => 'nested.nested_long',
                    )
                ),
                'score_mode' => ScoreModeConst::SCORE_MODE_AVG
            )
        )
    ),
    'columns_to_get' => array(
        'return_type' => ColumnReturnTypeConst::RETURN_SPECIFIED,
        'return_names' => array('nested')
    )
);
$response = $this->otsClient->search($request);