[email protected] (Heikki Linnakangas) writes:
> Log Message:
> -----------
> Coerce 'unknown' type parameters to the right type in the fixed-params
> parse_analyze() function. That case occurs e.g with PL/pgSQL
> EXECUTE ... USING 'stringconstant'.
> The coercion with a CoerceViaIO node. The result is similar to the coercion
> via input function performed for unknown constants in coerce_type(),
> except that this happens at runtime.
Unfortunately, this entirely fails to enforce the rule that an unknown
Param be coerced the same way everywhere. You'd need a cleanup pass as
well, cf check_variable_parameters().
regards, tom lane
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