Effective in version 10.5.0.1, when you refresh the source or target schema at run time in a dynamic mapping for a flat file, the Data Integration Service uses the value that you specify for the text qualifier formatting option on the Schema tab.
Previously, Data Integration Service ignored the value of the text qualifier that you specified and used the default double quotes instead.
To retain the previous behavior, edit the existing mapping, set the text qualifier to double quotes, and run the mapping again.
The change is applicable to the following adapters:
PowerExchange for Amazon S3
PowerExchange for Microsoft Azure Blob Storage
PowerExchange for Microsoft Azure Data Lake Storage Gen1
PowerExchange for Microsoft Azure Data Lake Storage Gen2