Initial Database Schema

sql/schema/002_create_click_logs_table.sql

@@ -0,0 +1,16 @@
+-- +goose Up
+CREATE TABLE click_logs (
+    click_id BIGSERIAL PRIMARY KEY,
+    url_id INT NOT NULL REFERENCES urls(url_id) ON DELETE CASCADE,
+    clicked_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    referrer VARCHAR(255),
+    user_agent TEXT,
+    ip_address VARCHAR(45) -- Accommodates both IPv4 and IPv6
+);
+
+-- Index to optimize analytics queries for a specific link
+CREATE INDEX idx_click_logs_url_id ON click_logs(url_id);
+
+-- +goose Down
+DROP INDEX idx_click_logs_url_id;
+DROP TABLE click_logs;