Yimaru-BackEnd/db/migrations/000053_exam_prep_unit_modules.up.sql

16 lines
669 B
SQL

-- Modules under an exam-prep unit (table name unit_modules avoids sqlc/LMS collision with public.modules).
CREATE TABLE exam_prep.unit_modules (
id BIGSERIAL PRIMARY KEY,
unit_id BIGINT NOT NULL REFERENCES exam_prep.units (id) ON DELETE CASCADE,
name VARCHAR(255) NOT NULL,
description TEXT,
thumbnail TEXT,
icon TEXT,
sort_order INTEGER NOT NULL DEFAULT 0,
created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
updated_at TIMESTAMPTZ
);
CREATE INDEX idx_exam_prep_unit_modules_unit_id ON exam_prep.unit_modules (unit_id);
CREATE INDEX idx_exam_prep_unit_modules_unit_sort ON exam_prep.unit_modules (unit_id, sort_order, id);