Laravel - PDO預處理語句 - 不能執行查詢，而其他非緩衝查詢是活躍

Question

我有運行下面的事先準備好的聲明中Laravel麻煩：

$pdo = DB::connection()->getPdo(); 
$ps_TempTable_PushCsv = $pdo->prepare(
    "LOAD DATA LOCAL INFILE '123' 
    INTO TABLE `123` 
    CHARACTER SET utf8mb4 
    FIELDS TERMINATED BY ',' 
    OPTIONALLY ENCLOSED BY '\"' 
    LINES TERMINATED BY '\\n'" 
); 
$ps_TempTable_PushCsv->execute(); 
$ps_TempTable_PushCsv->closeCursor(); 
$rowCount = $ps_TempTable_PushCsv->rowCount(); 

我收到以下錯誤：

[2017-06-08 03:41:35] local.ERROR: PDOException: SQLSTATE[HY000]: General error: 2014 Cannot execute queries while other unbuffered queries are active. Consider using PDOStatement::fetchAll(). Alternatively, if your code is only ever going to run against mysql, you may enable query buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute.

這是我的控制器的入口點，所以確實沒有任何事先查詢正在運行。

什麼？

感謝

Answer 1

我能得到它的工作的唯一辦法是，以取代準備好的語句中的「高管」稱：

$rowCount = DB::connection()->getpdo()->exec(
      "LOAD DATA LOCAL INFILE '$fileName' 
      INTO TABLE $tableName 
      CHARACTER SET utf8mb4 
      FIELDS TERMINATED BY ',' 
      OPTIONALLY ENCLOSED BY '\"' 
      LINES TERMINATED BY '\\n'" 
     ); 

我不知道爲什麼它不會使用準備工作在Laravel的聲明 - 它確實與純PDO準備聲明一起工作。