Binary Functions and Operators¶
Binary Operators¶
The ||
operator performs concatenation.
Binary Functions¶
- length(binary) bigint
Returns the length of
binary
in bytes.
- concat(binary1, ..., binaryN) varbinary
Returns the concatenation of
binary1
,binary2
,...
,binaryN
. This function provides the same functionality as the SQL-standard concatenation operator (||
).
- substr(binary, start) varbinary
Returns the rest of
binary
from the starting positionstart
, measured in bytes. Positions start with1
. A negative starting position is interpreted as being relative to the end of the string.
- substr(binary, start, length) varbinary
Returns a substring from
binary
of lengthlength
from the starting positionstart
, measured in bytes. Positions start with1
. A negative starting position is interpreted as being relative to the end of the string.
- to_base64(binary) varchar ¶
Encodes
binary
into a base64 string representation.
- from_base64(string) varbinary ¶
Decodes binary data from the base64 encoded
string
.
- to_base64url(binary) varchar ¶
Encodes
binary
into a base64 string representation using the URL safe alphabet.
- from_base64url(string) varbinary ¶
Decodes binary data from the base64 encoded
string
using the URL safe alphabet.
- from_base32(string) varbinary ¶
Decodes binary data from the base32 encoded
string
.
- to_base32(binary) varchar ¶
Encodes
binary
into a base32 string representation.
- to_hex(binary) varchar ¶
Encodes
binary
into a hex string representation.
- from_hex(string) varbinary ¶
Decodes binary data from the hex encoded
string
.
- to_big_endian_64(bigint) varbinary ¶
Encodes
bigint
in a 64-bit 2’s complement big endian format.
- from_big_endian_64(binary) bigint ¶
Decodes
bigint
value from a 64-bit 2’s complement big endianbinary
.
- to_big_endian_32(integer) varbinary ¶
Encodes
integer
in a 32-bit 2’s complement big endian format.
- from_big_endian_32(binary) integer ¶
Decodes
integer
value from a 32-bit 2’s complement big endianbinary
.
- to_ieee754_32(real) varbinary ¶
Encodes
real
in a 32-bit big-endian binary according to IEEE 754 single-precision floating-point format.
- from_ieee754_32(binary) real ¶
Decodes the 32-bit big-endian
binary
in IEEE 754 single-precision floating-point format.
- to_ieee754_64(double) varbinary ¶
Encodes
double
in a 64-bit big-endian binary according to IEEE 754 double-precision floating-point format.
- from_ieee754_64(binary) double ¶
Decodes the 64-bit big-endian
binary
in IEEE 754 double-precision floating-point format.
- lpad(binary, size, padbinary) varbinary
Left pads
binary
tosize
bytes withpadbinary
. Ifsize
is less than the length ofbinary
, the result is truncated tosize
characters.size
must not be negative andpadbinary
must be non-empty.
- rpad(binary, size, padbinary) varbinary
Right pads
binary
tosize
bytes withpadbinary
. Ifsize
is less than the length ofbinary
, the result is truncated tosize
characters.size
must not be negative andpadbinary
must be non-empty.
- crc32(binary) bigint ¶
Computes the CRC-32 of
binary
. For general purpose hashing, usexxhash64()
, as it is much faster and produces a better quality hash.
- md5(binary) varbinary ¶
Computes the md5 hash of
binary
.
- murmur3_x64_128(binary) varbinary ¶
Computes a hash of
binary
that is equivalent to C++ MurmurHash3_x64_128 (Murmur3F) of the samebinary
.
- sha1(binary) varbinary ¶
Computes the sha1 hash of
binary
.
- sha256(binary) varbinary ¶
Computes the sha256 hash of
binary
.
- sha512(binary) varbinary ¶
Computes the sha512 hash of
binary
.
- xxhash64(binary) varbinary ¶
Computes the xxhash64 hash of
binary
.
- spooky_hash_v2_32(binary) varbinary ¶
Computes the 32-bit SpookyHashV2 hash of
binary
.
- spooky_hash_v2_64(binary) varbinary ¶
Computes the 64-bit SpookyHashV2 hash of
binary
.
- hmac_md5(binary, key) varbinary ¶
Computes HMAC with md5 of
binary
with the givenkey
.
- hmac_sha1(binary, key) varbinary ¶
Computes HMAC with sha1 of
binary
with the givenkey
.
- hmac_sha256(binary, key) varbinary ¶
Computes HMAC with sha256 of
binary
with the givenkey
.
- hmac_sha512(binary, key) varbinary ¶
Computes HMAC with sha512 of
binary
with the givenkey
.
- reverse(binary) varbinary
Returns
binary
with the bytes in reverse order.