[GitHub] [doris] BiteTheDDDDt commented on pull request #10389: [fix]Make sure only call once set_dict_encoding_type for each ColumnReader

[GitBox <gi...@apache.org>]

BiteTheDDDDt commented on PR #10389:
URL: https://github.com/apache/doris/pull/10389#issuecomment-1165377823

   `std::once_flag` is used to process multiple threads, does we should use it on there?


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