Initial commit

.gitignore

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+postgres/
+

README.md

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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
+```

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()

mock/postgres.sh

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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