テスト用のテーブル mysql> CREATE TABLE grplt.tbl (pk SERIAL, col1 int, who_update varchar(10));Query OK, 0 rows affected (0.00 sec) mysql> INSERT INTO grplt.tbl (col1, who_update) VALUES (1, 'node1') , (2, 'node1'), (3, 'node1');Query OK, 3 rows affected (0.00 sec)Records: 3 Duplicates: 0 Warnings:…
