> SELECT .. FOR UPDATE?: > > https://www.postgresql.org/docs/10/static/sql-select.html#SQL-FOR-UPDATE-SHARE > > > https://www.postgresql.org/docs/10/static/explicit-locking.html#LOCKING-ROWS > It says: "Currently, FOR NO KEY UPDATE, FOR UPDATE, FOR SHARE and FOR KEY SHARE cannot be specified with GROUP BY." Regards, Vitaliy
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