initial commit
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Daniel Noulet
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136
backend/migrations/00001_initial.sql
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136
backend/migrations/00001_initial.sql
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-- +goose Up
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CREATE EXTENSION IF NOT EXISTS pgcrypto;
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CREATE TABLE users (
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id BIGSERIAL PRIMARY KEY,
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email VARCHAR(320) NOT NULL UNIQUE,
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password_hash TEXT NOT NULL,
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role VARCHAR(32) NOT NULL,
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created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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CREATE TABLE traits (
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id BIGSERIAL PRIMARY KEY,
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name VARCHAR(100) NOT NULL UNIQUE,
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normalized VARCHAR(100) NOT NULL UNIQUE
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);
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CREATE TABLE job_postings (
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id BIGSERIAL PRIMARY KEY,
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title VARCHAR(200) NOT NULL,
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description TEXT NOT NULL,
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seniority VARCHAR(50) NOT NULL,
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position VARCHAR(120) NOT NULL,
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created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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CREATE TABLE questions (
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id BIGSERIAL PRIMARY KEY,
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job_id BIGINT NOT NULL REFERENCES job_postings(id) ON DELETE CASCADE,
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text TEXT NOT NULL,
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type VARCHAR(32) NOT NULL CHECK (type IN ('open', 'multiple_choice', 'radio', 'code_review')),
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created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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CREATE TABLE question_options (
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id BIGSERIAL PRIMARY KEY,
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question_id BIGINT NOT NULL REFERENCES questions(id) ON DELETE CASCADE,
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text TEXT NOT NULL
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);
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CREATE TABLE participants (
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id BIGSERIAL PRIMARY KEY,
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first_name VARCHAR(100) NOT NULL,
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last_name VARCHAR(100) NOT NULL,
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birthday DATE,
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email VARCHAR(320) NOT NULL UNIQUE,
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contact_info TEXT,
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photo BYTEA,
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photo_type VARCHAR(100),
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cv BYTEA,
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cv_filename VARCHAR(255),
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created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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CREATE TABLE job_posting_labels (
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job_posting_id BIGINT NOT NULL REFERENCES job_postings(id) ON DELETE CASCADE,
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trait_id BIGINT NOT NULL REFERENCES traits(id) ON DELETE CASCADE,
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PRIMARY KEY (job_posting_id, trait_id)
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);
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CREATE TABLE job_required_skills (
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job_posting_id BIGINT NOT NULL REFERENCES job_postings(id) ON DELETE CASCADE,
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trait_id BIGINT NOT NULL REFERENCES traits(id) ON DELETE CASCADE,
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PRIMARY KEY (job_posting_id, trait_id)
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);
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CREATE TABLE job_additional_skills (
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job_posting_id BIGINT NOT NULL REFERENCES job_postings(id) ON DELETE CASCADE,
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trait_id BIGINT NOT NULL REFERENCES traits(id) ON DELETE CASCADE,
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PRIMARY KEY (job_posting_id, trait_id)
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);
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CREATE TABLE participant_traits (
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participant_id BIGINT NOT NULL REFERENCES participants(id) ON DELETE CASCADE,
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trait_id BIGINT NOT NULL REFERENCES traits(id) ON DELETE CASCADE,
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PRIMARY KEY (participant_id, trait_id)
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);
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INSERT INTO users (email, password_hash, role)
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VALUES ('interviewer@go-guess.local', crypt('admin123', gen_salt('bf')), 'interviewer');
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INSERT INTO traits (name, normalized) VALUES
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('Go', 'go'), ('PostgreSQL', 'postgresql'), ('Docker', 'docker'),
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('React', 'react'), ('TypeScript', 'typescript'), ('Kubernetes', 'kubernetes'),
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('Backend', 'backend');
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INSERT INTO job_postings (title, description, seniority, position) VALUES
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('Senior Go Backend Engineer', 'Build reliable APIs for passenger-facing railway systems.', 'Senior', 'Backend Engineer'),
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('Full-stack Product Engineer', 'Deliver accessible operational tools from database to browser.', 'Medior', 'Full-stack Engineer');
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INSERT INTO job_posting_labels (job_posting_id, trait_id)
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SELECT 1, id FROM traits WHERE normalized IN ('backend', 'go')
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ON CONFLICT DO NOTHING;
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INSERT INTO job_required_skills (job_posting_id, trait_id)
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SELECT 1, id FROM traits WHERE normalized IN ('go', 'postgresql', 'docker');
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INSERT INTO job_additional_skills (job_posting_id, trait_id)
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SELECT 1, id FROM traits WHERE normalized = 'kubernetes';
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INSERT INTO job_posting_labels (job_posting_id, trait_id)
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SELECT 2, id FROM traits WHERE normalized IN ('react', 'typescript');
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INSERT INTO job_required_skills (job_posting_id, trait_id)
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SELECT 2, id FROM traits WHERE normalized IN ('go', 'react', 'typescript');
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INSERT INTO job_additional_skills (job_posting_id, trait_id)
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SELECT 2, id FROM traits WHERE normalized = 'docker';
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INSERT INTO questions (job_id, text, type) VALUES
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(1, 'How do you design graceful shutdown for an HTTP service?', 'open'),
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(1, 'Which construct protects shared data across goroutines?', 'radio'),
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(2, 'Review this component and identify unnecessary renders.', 'code_review');
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INSERT INTO question_options (question_id, text) VALUES
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(2, 'sync.Mutex'), (2, 'context.Context'), (2, 'http.Client');
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INSERT INTO participants (first_name, last_name, birthday, email, contact_info, cv, cv_filename) VALUES
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('Ada', 'Lovelace', '1990-12-10', 'ada@example.com', '+32 470 00 00 01', encode('Senior backend engineer with Go, PostgreSQL and Docker experience.', 'escape')::bytea, 'ada-cv.txt'),
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('Grace', 'Hopper', '1988-12-09', 'grace@example.com', '+32 470 00 00 02', encode('Full-stack developer working with Go, React and TypeScript.', 'escape')::bytea, 'grace-cv.txt');
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INSERT INTO participant_traits (participant_id, trait_id)
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SELECT 1, id FROM traits WHERE normalized IN ('go', 'postgresql', 'docker');
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INSERT INTO participant_traits (participant_id, trait_id)
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SELECT 2, id FROM traits WHERE normalized IN ('go', 'react', 'typescript');
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-- +goose Down
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DROP TABLE IF EXISTS participant_traits;
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DROP TABLE IF EXISTS job_additional_skills;
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DROP TABLE IF EXISTS job_required_skills;
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DROP TABLE IF EXISTS job_posting_labels;
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DROP TABLE IF EXISTS participants;
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DROP TABLE IF EXISTS question_options;
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DROP TABLE IF EXISTS questions;
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DROP TABLE IF EXISTS job_postings;
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DROP TABLE IF EXISTS traits;
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DROP TABLE IF EXISTS users;
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-- +goose Up
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ALTER TABLE job_postings
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ADD COLUMN status VARCHAR(32) NOT NULL DEFAULT 'draft'
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CHECK (status IN ('draft', 'published', 'deprecated')),
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ADD COLUMN duration_minutes INTEGER NOT NULL DEFAULT 60
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CHECK (duration_minutes BETWEEN 1 AND 480);
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UPDATE job_postings SET status = 'published';
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ALTER TABLE questions ADD COLUMN deprecated BOOLEAN NOT NULL DEFAULT false;
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CREATE TABLE job_posting_questions (
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job_posting_id BIGINT NOT NULL REFERENCES job_postings(id) ON DELETE CASCADE,
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question_id BIGINT NOT NULL REFERENCES questions(id) ON DELETE RESTRICT,
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PRIMARY KEY (job_posting_id, question_id)
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);
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INSERT INTO job_posting_questions (job_posting_id, question_id)
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SELECT job_id, id FROM questions WHERE job_id IS NOT NULL;
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ALTER TABLE questions DROP COLUMN job_id;
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CREATE TABLE invitations (
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id BIGSERIAL PRIMARY KEY,
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job_id BIGINT NOT NULL REFERENCES job_postings(id) ON DELETE CASCADE,
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participant_id BIGINT NOT NULL REFERENCES participants(id) ON DELETE CASCADE,
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token VARCHAR(64) NOT NULL UNIQUE,
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status VARCHAR(32) NOT NULL DEFAULT 'pending'
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CHECK (status IN ('pending', 'accepted', 'completed')),
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accepted_at TIMESTAMPTZ,
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completed_at TIMESTAMPTZ,
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created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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UNIQUE (job_id, participant_id)
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);
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CREATE TABLE invitation_answers (
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id BIGSERIAL PRIMARY KEY,
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invitation_id BIGINT NOT NULL REFERENCES invitations(id) ON DELETE CASCADE,
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question_id BIGINT NOT NULL REFERENCES questions(id) ON DELETE RESTRICT,
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answer TEXT NOT NULL,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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UNIQUE (invitation_id, question_id)
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);
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-- +goose Down
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DROP TABLE IF EXISTS invitation_answers;
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DROP TABLE IF EXISTS invitations;
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ALTER TABLE questions ADD COLUMN job_id BIGINT REFERENCES job_postings(id) ON DELETE CASCADE;
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UPDATE questions q
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SET job_id = links.job_posting_id
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FROM (
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SELECT question_id, min(job_posting_id) AS job_posting_id
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FROM job_posting_questions
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GROUP BY question_id
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) links
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WHERE links.question_id = q.id;
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DROP TABLE IF EXISTS job_posting_questions;
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ALTER TABLE questions DROP COLUMN deprecated;
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ALTER TABLE job_postings DROP COLUMN duration_minutes;
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ALTER TABLE job_postings DROP COLUMN status;
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12
backend/migrations/00003_invitation_duration.sql
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12
backend/migrations/00003_invitation_duration.sql
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-- +goose Up
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ALTER TABLE invitations
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ADD COLUMN duration_minutes INTEGER NOT NULL DEFAULT 60
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CHECK (duration_minutes BETWEEN 1 AND 480);
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UPDATE invitations i
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SET duration_minutes = j.duration_minutes
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FROM job_postings j
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WHERE j.id = i.job_id;
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-- +goose Down
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ALTER TABLE invitations DROP COLUMN duration_minutes;
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13
backend/migrations/00004_question_reference_answer.sql
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backend/migrations/00004_question_reference_answer.sql
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-- +goose Up
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ALTER TABLE questions
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ADD COLUMN reference_answer TEXT NOT NULL DEFAULT '';
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UPDATE questions
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SET reference_answer = CASE
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WHEN type = 'open' THEN 'Use context cancellation, stop accepting work, drain active requests, and close dependencies within a deadline.'
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WHEN type = 'code_review' THEN 'Identify unstable dependencies or state updates that cause avoidable renders and propose memoization only where measured.'
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ELSE reference_answer
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END;
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-- +goose Down
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ALTER TABLE questions DROP COLUMN reference_answer;
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