title: escape double quotes in snowflake
body: <p>I'm trying to load the data using copy into command. Field has special character as value <code>\"</code>, but 
  FIELD_OPTIONALLY_ENCLOSED_BY its escaping <code>\</code> and getting error while loading   </p>
  
  <pre><code>Found character '0' instead of field delimiter ';'
  </code></pre>
  
  <p><strong>DATA:</strong> </p>
  
  <pre><code>"TOL";"AANVR. 1E K ZIE RF.\";"011188"
  </code></pre>
  
  <p>After escaping second column value its considering and escaping delimiter <code>AANVR. 1E K ZIE RF.\";</code> but actually it should be <code>AANVR. 1E K ZIE RF.\</code>. </p>
  
  <p><strong>File format</strong></p>
  
  <pre><code> CREATE OR REPLACE FILE FORMAT TEST                  
         FIELD_DELIMITER = ';'                                                                                                                                         
         SKIP_HEADER = 1                                                                                                                                         
         TIMESTAMP_FORMAT = 'MM/DD/YYYYHH24:MI:SS'                                                                                                                                         
         escape = "\\"                                                                                                                                '
         TRIM_SPACE = TRUE                                                                                                                                         
         FIELD_OPTIONALLY_ENCLOSED_BY = '\"'                                                                                                                                         
         NULL_IF = ('')                                                                                                                                         
         ENCODING = "iso-8859-1"                                                                                                                                         
   ; 
  </code></pre>