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A few days ago, someone in this
list gives me a function (plpgsql) that evaluates if a string is a
valid date or not.
It returns 1 or 0 (valid/Not Valid)
The problem is that if the argument is a NULL field
the function returns 1.
I don't have experience with plpgsql language.
This is the function
begin
perform $1::date; return 1; exception when others then return 0; end
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