DROP SCHEMA IF EXISTS qa_demo CASCADE; CREATE SCHEMA qa_demo; SET search_path TO qa_demo; CREATE TABLE accounts ( id BIGINT PRIMARY KEY, email TEXT NOT NULL UNIQUE, display_name TEXT, is_active BOOLEAN NOT NULL, created_at TIMESTAMPTZ NOT NULL ); CREATE TABLE tickets ( id BIGINT PRIMARY KEY, account_id BIGINT NOT NULL REFERENCES accounts(id), title TEXT NOT NULL, status TEXT NOT NULL, notes TEXT, amount_cents INTEGER NOT NULL, created_at TIMESTAMPTZ NOT NULL ); INSERT INTO accounts (id, email, display_name, is_active, created_at) VALUES (1, 'alice@example.com', 'Alice', TRUE, '2026-03-01T08:30:00Z'), (2, 'maria@example.com', 'Máría', FALSE, '2026-03-10T09:45:00Z'), (3, 'zhang@example.com', '张敏', TRUE, '2026-03-15T12:00:00Z'); INSERT INTO tickets (id, account_id, title, status, notes, amount_cents, created_at) VALUES (101, 1, 'login timeout', 'open', NULL, 0, '2026-03-20T10:00:00Z'), (102, 1, 'csv export mismatch', 'closed', 'fixed after re-run', 1500, '2026-03-21T11:15:00Z'), (103, 2, '权限验证', 'open', 'needs DBA review', 300, '2026-03-22T15:30:00Z'), (104, 3, 'emoji smoke 😀', 'open', NULL, 42, '2026-03-23T07:05:00Z');