Apply better schema

Author: No767

bot/migrations/V5__add_table_for_snippets.sql bot/V5__add_table_for_snippets.sql

@@ -0,0 +1,36 @@
+-- Revision Version: V7
+-- Revises: V6
+-- Creation Date: 2024-06-25 22:08:13.554817 UTC
+-- Reason: snippets
+
+CREATE TABLE IF NOT EXISTS snippets (
+    id SERIAL PRIMARY KEY,
+    name TEXT,
+    content TEXT,
+    uses INTEGER DEFAULT (0),
+    owner_id BIGINT,
+    location_id BIGINT, 
+    created_at TIMESTAMPTZ DEFAULT (now() at time zone 'utc')
+);
+
+-- Create indices to speed up regular and trigram searches
+CREATE INDEX IF NOT EXISTS snippets_name_idx ON snippets (name);
+CREATE INDEX IF NOT EXISTS snippets_location_id_idx ON snippets (location_id);
+CREATE INDEX IF NOT EXISTS snippets_name_trgm_idx ON snippets USING GIN (name gin_trgm_ops);
+CREATE INDEX IF NOT EXISTS snippets_name_lower_idx ON snippets (LOWER(name));
+CREATE UNIQUE INDEX IF NOT EXISTS snippets_uniq_idx ON snippets (LOWER(name), location_id);
+
+CREATE TABLE IF NOT EXISTS snippets_lookup (
+    id SERIAL PRIMARY KEY,
+    name TEXT,
+    location_id BIGINT,
+    owner_id BIGINT,
+    created_at TIMESTAMPTZ DEFAULT (now() at time zone 'utc'),
+    snippets_id INTEGER REFERENCES snippets (id) ON DELETE CASCADE ON UPDATE NO ACTION
+);
+
+CREATE INDEX IF NOT EXISTS snippets_lookup_name_idx ON snippets_lookup (name);
+CREATE INDEX IF NOT EXISTS snippets_lookup_location_id_idx ON snippets_lookup (location_id);
+CREATE INDEX IF NOT EXISTS snippets_lookup_name_trgm_idx ON snippets_lookup USING GIN (name gin_trgm_ops);
+CREATE INDEX IF NOT EXISTS snippets_lookup_name_lower_idx ON snippets_lookup (LOWER(name));
+CREATE UNIQUE INDEX IF NOT EXISTS snippets_lookup_uniq_idx ON snippets_lookup (LOWER(name), location_id);

bot/migrations/V7__snippets.sql

@@ -4,4 +4,5 @@ set -e
 psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
   CREATE ROLE rodhaj WITH LOGIN PASSWORD '$RODHAJ_PASSWORD';
   CREATE DATABASE rodhaj OWNER rodhaj;
+  CREATE EXTENSION IF NOT EXISTS pg_trgm;
 EOSQL

docker/pg/init.sh

@@ -96,6 +96,7 @@ The following SQL queries can be used to create the user and database:
 
     CREATE ROLE rodhaj WITH LOGIN PASSWORD 'somepass';
     CREATE DATABASE rodhaj OWNER rodhaj;
+    CREATE EXTENSION IF NOT EXISTS pg_trgm;
 
 .. note::