Alvaro Herrera <alvherre@commandprompt.com> writes:
> Not sure. Is it possible that the schema is renamed while the operation
> is being executed? If it's not then this not a problem at all so the
> existing patch is fine.

There are hazards of that type in CREATE TABLE right now; it's hardly
fair to hold LIKE INCLUDING INDEXES to a higher standard.

regards, tom lane

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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match