> On 02.07.2018, at 17:59, Marco Fochesato <marcofoc(at)gmail(dot)com> wrote:
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>> I would suggest writing a self-contained script that creates the table, inserts a single record, and updates that record. Present that for consideration along with a description or capture of the results of running the script on your machine.
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> But not all the records fail the update...
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>
Do you have a trigger or a rule intercepting the update? You may see this with \d in a console.