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Shane Engelman 2023-07-30 20:49:44 -04:00
commit 51c8b33ca0
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postgres/

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# Milk Sad Lookup
Insert many rows of sha256 hashes into a Postgres database.
1. Install `postgress-client`:
```shell
sudo apt install postgres-client
```
2. Install Docker
3. Install Python dependencies:
```shell
pip install psycopg2
```
4. Run the database via Docker:
```shell
./mock/postgres.sh
```
5. Configure the database:
- Log into `psql shell`:
```shell
psql -h localhost -p 5432 -U postgres
```
Password: `test`
- Create Database, table, and index:
```shell
postgres=# CREATE DATABASE hashes;
postgres=# \c hashes;
hashes=# CREATE TABLE hashes(id BYTEA);
hashes=# CREATE INDEX hashes_id on hashes(id);
```
6. Hammer time:
```shell
./mock/insert_into.py
```

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#!/usr/bin/env python
import uuid
import hashlib
import psycopg2
conn = psycopg2.connect("user=postgres password=test host=0.0.0.0 dbname=hashes")
RANGE = 4294967295
cur = conn.cursor()
for entry in range(RANGE):
hash = hashlib.sha256(str(uuid.uuid4()).encode()).digest()
cur.execute("""INSERT INTO hashes(id) VALUES(%s);""", (hash, ))
if entry % 100000 == 0: # Print progress every 100,000 commits
conn.commit()
print(entry)
print(hash)
conn.close()

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#!/usr/bin/env sh
docker run \
-e POSTGRES_PASSWORD=test \
-it \
-v ./postgres:/var/lib/postgresql/data \
-p 0.0.0.0:5432:5432 \
postgres:14

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