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Re: murmur3 hash binary data migration from Oracle to PostgreSQL - Mailing list pgsql-general

From Imre Samu
Subject Re: murmur3 hash binary data migration from Oracle to PostgreSQL
Date
Msg-id CAJnEWwnwsvJ=OEajB+-o+Dm2geMgEBedsRWMN+xAKqH-dj4Y_Q@mail.gmail.com
Whole thread Raw
In response to Re: murmur3 hash binary data migration from Oracle to PostgreSQL  (Jagmohan Kaintura <jagmohan@tecorelabs.com>)
List pgsql-general
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No we want to generate murmur3 format only. 

If you need a server-side murmur3 function 
-  one alternative is the https://github.com/markokr/pghashlib extension.

psql (15.2 (Debian 15.2-2))
Type "help" for help.

db=# create extension hashlib;
CREATE EXTENSION

db=# 
select hash_string('', 'murmur3');
select hash_string('a', 'murmur3');
select hash_string('abcdefg', 'murmur3');
select encode(hash128_string('abcdefg', 'murmur3'), 'hex');
+-------------+
| hash_string |
+-------------+
|           0 |
+-------------+
(1 row)

+-------------+
| hash_string |
+-------------+
|  1009084850 |
+-------------+
(1 row)

+-------------+
| hash_string |
+-------------+
| -2009294074 |
+-------------+
(1 row)

+----------------------------------+
|              encode              |
+----------------------------------+
| 069b3c88000000000000000000000000 |
+----------------------------------+
(1 row)



RUN   mkdir -p /pghashlib \
    && git clone  --depth 1 --branch bgdevlab/builds https://github.com/bgdevlab/pghashlib.git  /pghashlib \
    && cd /pghashlib \
    && make USE_PGXS=1 \
    && make USE_PGXS=1 install \
    && rm -rf /pghashlib

Regards,
 Imre

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