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-- pg_size_bytes() tests
SELECT size, pg_size_bytes(size) FROM
(VALUES ('1'), ('123bytes'), ('1kB'), ('1MB'), (' 1 GB'), ('1.5 GB '),
('1TB'), ('3000 TB'), ('1e6 MB')) x(size);
-- case-insensitive units are supported
SELECT size, pg_size_bytes(size) FROM
(VALUES ('1'), ('123bYteS'), ('1kb'), ('1mb'), (' 1 Gb'), ('1.5 gB '),
('1tb'), ('3000 tb'), ('1e6 mb')) x(size);
-- negative numbers are supported
SELECT size, pg_size_bytes(size) FROM
(VALUES ('-1'), ('-123bytes'), ('-1kb'), ('-1mb'), (' -1 Gb'), ('-1.5 gB '),
('-1tb'), ('-3000 TB'), ('-10e-1 MB')) x(size);
-- different cases with allowed points
SELECT size, pg_size_bytes(size) FROM
(VALUES ('-1.'), ('-1.kb'), ('-1. kb'), ('-0. gb'),
('-.1'), ('-.1kb'), ('-.1 kb'), ('-.0 gb')) x(size);
-- invalid inputs
SELECT pg_size_bytes('1 AB');
SELECT pg_size_bytes('1 AB A');
SELECT pg_size_bytes('1 AB A ');
SELECT pg_size_bytes('9223372036854775807.9');
SELECT pg_size_bytes('1e100');
SELECT pg_size_bytes('1e1000000000000000000');
SELECT pg_size_bytes('1 byte'); -- the singular "byte" is not supported
SELECT pg_size_bytes('');
SELECT pg_size_bytes('kb');
SELECT pg_size_bytes('..');
SELECT pg_size_bytes('-.');
SELECT pg_size_bytes('-.kb');
SELECT pg_size_bytes('-. kb');
SELECT pg_size_bytes('.+912');
SELECT pg_size_bytes('+912+ kB');
SELECT pg_size_bytes('++123 kB');
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