具体示例
$withJoin = [
'user'=>explode(',','user_id,user_nick,user_img,user_num'),
'admin_user'=>explode(',', 'user_id,name,note')
];
$query = $query->withJoin($withJoin,'left');

当有withJoin后
$query = $query->withCount(['merchant_appeal_complain'=>function($query){
$query = $query->where('appeal_type', 2);
}],'merchant_appeal_complain_id');

生成语句为
(SELECT COUNT(merchant_appeal_complain_id) AS think_count FROM cd_merchant_appeal_complain merchant_appeal_complain_count WHERE appeal_type = 2 AND (merchant_appeal_complain_count.wukong_order_middle_id = cd_wukong_order_complaint.wukong_order_middle_id)) AS merchant_appeal_complain_count

语句中
merchant_appeal_complain_count.wukong_order_middle_id = cd_wukong_order_complaint.wukong_order_middle_id
错误原因为
cd_wukong_order_complaint
应为
wukong_order_complaint

数据库设置了prefix为cd_

临时解决办法(不建议采用的临时解决)

namespace utils;
use think\db\Query;
class H4Query extends Query{
	public function h4WithCount(string | array $relation, string $field = 'id', bool $subQuery = true){
		$query = $this->withCount($relation, $field, $subQuery);
		$op = $query->getOption('field');
		$isUpdate = false;
		foreach ($op as $key=>$item){
			$withCountArr = $relation;
			if(!is_array($relation)){
				$withCountArr = [$relation];
			}
			foreach ($withCountArr as $k => $v){
				if($item == $k.'_count'){
					$aliasArr = $this->getTable(true);
					foreach ($aliasArr as $aliask => $alias){
						$test1 = explode('`'.$k.'_count`.`',$key);
						if(count($test1) == 2){
							$test2 = explode('=',$test1[1]);
							if(count($test2) >= 2){
								$test3 = explode('.',$test2[1]);
								if(count($test3) >= 2 && $test3[0] == $aliask){
									$test3[0] = $alias;
									$isUpdate = true;
									$test2[1] = join('.',$test3);
									$test1[1] = join('=',$test2);
									unset($op[$key]);
									$op[join('`'.$k.'_count`.`',$test1)] = $item;
								}
							}
						}
					}
				}
			}
		}
		if($isUpdate){
			$query->setOption('field',$op);
		}
		return $query;
	}
}

withCount报错 #832

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