-- check corner case involving an input string of 16kB, as per bug #16476.

SELECT setseed(0);

setseed

---------

(1 row)

WITH random_string AS

(

-- This generates a random string of 16366 bytes. This is chosen

-- as random so that it does not get compressed, and the decompression

-- would work on a string with the same length as the origin, making the

-- test behavior more predictible. lpad() ensures that the generated

-- hexadecimal value is completed by extra zero characters if random()

-- has generated a value strictly lower than 16.

SELECT string_agg(decode(lpad(to_hex((random()*256)::int), 2, '0'), 'hex'), '') as bytes

FROM generate_series(0, 16365)

)

SELECT bytes =

pgp_sym_decrypt_bytea(

pgp_sym_encrypt_bytea(bytes, 'key',

'compress-algo=1,compress-level=1'),

'key', 'expect-compress-algo=1')

AS is_same

FROM random_string;

ERROR: generating random data is not supported by this build

DETAIL: This functionality requires a source of strong random numbers

HINT: You need to rebuild PostgreSQL using --enable-strong-random