196 lines
7.6 KiB
Plaintext
196 lines
7.6 KiB
Plaintext
SELECT size, pg_size_pretty(size), pg_size_pretty(-1 * size) FROM
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(VALUES (10::bigint), (1000::bigint), (1000000::bigint),
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(1000000000::bigint), (1000000000000::bigint),
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(1000000000000000::bigint)) x(size);
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size | pg_size_pretty | pg_size_pretty
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------------------+----------------+----------------
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10 | 10 bytes | -10 bytes
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1000 | 1000 bytes | -1000 bytes
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1000000 | 977 kB | -977 kB
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1000000000 | 954 MB | -954 MB
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1000000000000 | 931 GB | -931 GB
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1000000000000000 | 909 TB | -909 TB
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(6 rows)
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SELECT size, pg_size_pretty(size), pg_size_pretty(-1 * size) FROM
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(VALUES (10::numeric), (1000::numeric), (1000000::numeric),
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(1000000000::numeric), (1000000000000::numeric),
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(1000000000000000::numeric),
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(10.5::numeric), (1000.5::numeric), (1000000.5::numeric),
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(1000000000.5::numeric), (1000000000000.5::numeric),
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(1000000000000000.5::numeric)) x(size);
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size | pg_size_pretty | pg_size_pretty
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--------------------+----------------+----------------
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10 | 10 bytes | -10 bytes
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1000 | 1000 bytes | -1000 bytes
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1000000 | 977 kB | -977 kB
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1000000000 | 954 MB | -954 MB
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1000000000000 | 931 GB | -931 GB
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1000000000000000 | 909 TB | -909 TB
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10.5 | 10.5 bytes | -10.5 bytes
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1000.5 | 1000.5 bytes | -1000.5 bytes
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1000000.5 | 977 kB | -977 kB
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1000000000.5 | 954 MB | -954 MB
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1000000000000.5 | 931 GB | -931 GB
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1000000000000000.5 | 909 TB | -909 TB
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(12 rows)
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-- test where units change up
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SELECT size, pg_size_pretty(size), pg_size_pretty(-1 * size) FROM
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(VALUES (10239::bigint), (10240::bigint),
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(10485247::bigint), (10485248::bigint),
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(10736893951::bigint), (10736893952::bigint),
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(10994579406847::bigint), (10994579406848::bigint),
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(11258449312612351::bigint), (11258449312612352::bigint)) x(size);
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size | pg_size_pretty | pg_size_pretty
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-------------------+----------------+----------------
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10239 | 10239 bytes | -10239 bytes
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10240 | 10 kB | -10 kB
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10485247 | 10239 kB | -10239 kB
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10485248 | 10 MB | -10 MB
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10736893951 | 10239 MB | -10239 MB
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10736893952 | 10 GB | -10 GB
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10994579406847 | 10239 GB | -10239 GB
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10994579406848 | 10 TB | -10 TB
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11258449312612351 | 10239 TB | -10239 TB
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11258449312612352 | 10 PB | -10 PB
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(10 rows)
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SELECT size, pg_size_pretty(size), pg_size_pretty(-1 * size) FROM
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(VALUES (10239::numeric), (10240::numeric),
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(10485247::numeric), (10485248::numeric),
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(10736893951::numeric), (10736893952::numeric),
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(10994579406847::numeric), (10994579406848::numeric),
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(11258449312612351::numeric), (11258449312612352::numeric),
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(11528652096115048447::numeric), (11528652096115048448::numeric)) x(size);
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size | pg_size_pretty | pg_size_pretty
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----------------------+----------------+----------------
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10239 | 10239 bytes | -10239 bytes
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10240 | 10 kB | -10 kB
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10485247 | 10239 kB | -10239 kB
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10485248 | 10 MB | -10 MB
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10736893951 | 10239 MB | -10239 MB
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10736893952 | 10 GB | -10 GB
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10994579406847 | 10239 GB | -10239 GB
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10994579406848 | 10 TB | -10 TB
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11258449312612351 | 10239 TB | -10239 TB
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11258449312612352 | 10 PB | -10 PB
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11528652096115048447 | 10239 PB | -10239 PB
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11528652096115048448 | 10240 PB | -10240 PB
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(12 rows)
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-- pg_size_bytes() tests
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SELECT size, pg_size_bytes(size) FROM
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(VALUES ('1'), ('123bytes'), ('256 B'), ('1kB'), ('1MB'), (' 1 GB'), ('1.5 GB '),
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('1TB'), ('3000 TB'), ('1e6 MB'), ('99 PB')) x(size);
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size | pg_size_bytes
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----------+--------------------
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1 | 1
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123bytes | 123
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256 B | 256
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1kB | 1024
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1MB | 1048576
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1 GB | 1073741824
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1.5 GB | 1610612736
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1TB | 1099511627776
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3000 TB | 3298534883328000
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1e6 MB | 1048576000000
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99 PB | 111464090777419776
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(11 rows)
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-- case-insensitive units are supported
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SELECT size, pg_size_bytes(size) FROM
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(VALUES ('1'), ('123bYteS'), ('1kb'), ('1mb'), (' 1 Gb'), ('1.5 gB '),
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('1tb'), ('3000 tb'), ('1e6 mb'), ('99 pb')) x(size);
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size | pg_size_bytes
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----------+--------------------
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1 | 1
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123bYteS | 123
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1kb | 1024
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1mb | 1048576
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1 Gb | 1073741824
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1.5 gB | 1610612736
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1tb | 1099511627776
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3000 tb | 3298534883328000
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1e6 mb | 1048576000000
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99 pb | 111464090777419776
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(10 rows)
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-- negative numbers are supported
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SELECT size, pg_size_bytes(size) FROM
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(VALUES ('-1'), ('-123bytes'), ('-1kb'), ('-1mb'), (' -1 Gb'), ('-1.5 gB '),
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('-1tb'), ('-3000 TB'), ('-10e-1 MB'), ('-99 PB')) x(size);
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size | pg_size_bytes
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-----------+---------------------
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-1 | -1
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-123bytes | -123
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-1kb | -1024
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-1mb | -1048576
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-1 Gb | -1073741824
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-1.5 gB | -1610612736
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-1tb | -1099511627776
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-3000 TB | -3298534883328000
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-10e-1 MB | -1048576
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-99 PB | -111464090777419776
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(10 rows)
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-- different cases with allowed points
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SELECT size, pg_size_bytes(size) FROM
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(VALUES ('-1.'), ('-1.kb'), ('-1. kb'), ('-0. gb'),
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('-.1'), ('-.1kb'), ('-.1 kb'), ('-.0 gb')) x(size);
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size | pg_size_bytes
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--------+---------------
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-1. | -1
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-1.kb | -1024
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-1. kb | -1024
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-0. gb | 0
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-.1 | 0
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-.1kb | -102
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-.1 kb | -102
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-.0 gb | 0
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(8 rows)
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-- invalid inputs
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SELECT pg_size_bytes('1 AB');
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ERROR: invalid size: "1 AB"
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DETAIL: Invalid size unit: "AB".
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HINT: Valid units are "bytes", "B", "kB", "MB", "GB", "TB", and "PB".
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SELECT pg_size_bytes('1 AB A');
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ERROR: invalid size: "1 AB A"
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DETAIL: Invalid size unit: "AB A".
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HINT: Valid units are "bytes", "B", "kB", "MB", "GB", "TB", and "PB".
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SELECT pg_size_bytes('1 AB A ');
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ERROR: invalid size: "1 AB A "
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DETAIL: Invalid size unit: "AB A".
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HINT: Valid units are "bytes", "B", "kB", "MB", "GB", "TB", and "PB".
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SELECT pg_size_bytes('9223372036854775807.9');
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ERROR: bigint out of range
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SELECT pg_size_bytes('1e100');
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ERROR: bigint out of range
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SELECT pg_size_bytes('1e1000000000000000000');
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ERROR: value overflows numeric format
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SELECT pg_size_bytes('1 byte'); -- the singular "byte" is not supported
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ERROR: invalid size: "1 byte"
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DETAIL: Invalid size unit: "byte".
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HINT: Valid units are "bytes", "B", "kB", "MB", "GB", "TB", and "PB".
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SELECT pg_size_bytes('');
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ERROR: invalid size: ""
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SELECT pg_size_bytes('kb');
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ERROR: invalid size: "kb"
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SELECT pg_size_bytes('..');
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ERROR: invalid size: ".."
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SELECT pg_size_bytes('-.');
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ERROR: invalid size: "-."
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SELECT pg_size_bytes('-.kb');
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ERROR: invalid size: "-.kb"
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SELECT pg_size_bytes('-. kb');
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ERROR: invalid size: "-. kb"
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SELECT pg_size_bytes('.+912');
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ERROR: invalid size: ".+912"
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SELECT pg_size_bytes('+912+ kB');
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ERROR: invalid size: "+912+ kB"
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DETAIL: Invalid size unit: "+ kB".
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HINT: Valid units are "bytes", "B", "kB", "MB", "GB", "TB", and "PB".
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SELECT pg_size_bytes('++123 kB');
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ERROR: invalid size: "++123 kB"
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