I haven’t looked up what pgp_sym_encrypt() does but assuming it does encryption the way you should be for credit card data then it will be using a random salt and the same input value won’t encrypt to the same output value so
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WHERE cc=pgp_sym_encrypt('test value 32', 'motdepasse');
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wouldn’t work because the value generated by the function when you are searching on isn’t the same value as when you stored it.
Paul
WHERE cc=pgp_sym_encrypt('test value 32', 'motdepasse');
