According to the manualof RowDescription message https://www.postgresql.org/docs/12/protocol-message-formats.html Specifies the number of fields in a row (can be zero). Does 0 fields could actually happen? Best regards, -- Tatsuo Ishii SRA OSS, Inc. Japan English: http://www.sraoss.co.jp/index_en.php Japanese:http://www.sraoss.co.jp
