Re: murmur3 hash binary data migration from Oracle to PostgreSQL

>
> 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)

In my test, I have used this fork:
https://github.com/bgdevlab/pghashlib/tree/bgdevlab/builds

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