hashtypes
hashtypes
hashtypes : sha1, md5 and other data types for PostgreSQL
Overview
| ID | Extension | Package | Version | Category | License | Language |
|---|---|---|---|---|---|---|
| 3750 | hashtypes
|
hashtypes
|
0.1.5 |
TYPE
|
PostgreSQL
|
C
|
| Attribute | Has Binary | Has Library | Need Load | Has DDL | Relocatable | Trusted |
|---|---|---|---|---|---|---|
--s-d--
|
No
|
Yes
|
No
|
Yes
|
no
|
no
|
| Relationships | |
|---|---|
| See Also | prefix
semver
unit
pgpdf
pglite_fusion
md5hash
asn1oid
roaringbitmap
|
Packages
| Type | Repo | Version | PG Major Compatibility | Package Pattern | Dependencies |
|---|---|---|---|---|---|
| EXT | PIGSTY
|
0.1.5 |
18
17
16
15
14
|
hashtypes |
- |
| RPM | PIGSTY
|
0.1.5 |
18
17
16
15
14
|
hashtypes_$v |
- |
| DEB | PIGSTY
|
0.1.5 |
18
17
16
15
14
|
postgresql-$v-hashtypes |
- |
| Linux / PG | PG18 | PG17 | PG16 | PG15 | PG14 |
|---|---|---|---|---|---|
el8.x86_64
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
el8.aarch64
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
el9.x86_64
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
el9.aarch64
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
el10.x86_64
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
el10.aarch64
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
d12.x86_64
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
d12.aarch64
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
d13.x86_64
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
d13.aarch64
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
u22.x86_64
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
u22.aarch64
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
u24.x86_64
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
u24.aarch64
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
PIGSTY 0.1.5
|
Source
pig build pkg hashtypes; # build rpm/debInstall
Make sure PGDG and PIGSTY repo available:
pig repo add pgsql -u # add both repo and update cacheInstall this extension with pig:
pig install hashtypes; # install via package name, for the active PG version
pig install hashtypes -v 18; # install for PG 18
pig install hashtypes -v 17; # install for PG 17
pig install hashtypes -v 16; # install for PG 16
pig install hashtypes -v 15; # install for PG 15
pig install hashtypes -v 14; # install for PG 14Create this extension with:
CREATE EXTENSION hashtypes;Usage
The hashtypes extension provides native data types for storing hash values and checksums in their binary representation, saving storage compared to text.
CREATE EXTENSION hashtypes;Data Types
| Type | Storage | Description |
|---|---|---|
sha1 |
20 bytes | SHA-1 hash (160-bit) |
sha224 |
28 bytes | SHA-224 hash (224-bit) |
sha256 |
32 bytes | SHA-256 hash (256-bit) |
sha384 |
48 bytes | SHA-384 hash (384-bit) |
sha512 |
64 bytes | SHA-512 hash (512-bit) |
crc32 |
4 bytes | CRC-32 checksum |
Usage
CREATE TABLE objects (
hash sha256 PRIMARY KEY,
data bytea
);
INSERT INTO objects VALUES (
'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855',
'\x'
);
SELECT * FROM objects WHERE hash = 'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855';Operators
All types support comparison operators: =, <>, <, >, <=, >=.
Index Support
Btree and hash index operator classes are provided for all types.
Casts
All types support bidirectional casts to/from text and bytea.
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