shay7sev
afdfa8bcf7
git-subtree-dir: server git-subtree-mainline:fb6a84d75fgit-subtree-split:8a88706ff9
46 lines
1.8 KiB
SQL
46 lines
1.8 KiB
SQL
CREATE TABLE student_profiles (
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id UUID PRIMARY KEY,
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owner_id UUID NOT NULL,
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name VARCHAR(20) NOT NULL CHECK (char_length(btrim(name)) BETWEEN 1 AND 20),
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grade VARCHAR(40) NOT NULL CHECK (char_length(btrim(grade)) > 0),
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subject VARCHAR(40) NOT NULL CHECK (char_length(btrim(subject)) > 0),
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academic_year SMALLINT NOT NULL CHECK (academic_year BETWEEN 2000 AND 2200),
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term VARCHAR(1) NOT NULL CHECK (term IN ('春', '暑', '秋', '寒')),
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guardian_title VARCHAR(24) NOT NULL CHECK (char_length(btrim(guardian_title)) BETWEEN 1 AND 24),
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start_time CHAR(5) NOT NULL,
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end_time CHAR(5) 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 INDEX student_profiles_owner_updated_idx
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ON student_profiles (owner_id, updated_at DESC);
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CREATE INDEX student_profiles_owner_grade_subject_idx
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ON student_profiles (owner_id, grade, subject);
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CREATE TABLE student_profile_defaults (
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owner_id UUID PRIMARY KEY,
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grade VARCHAR(40) NOT NULL CHECK (char_length(btrim(grade)) > 0),
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subject VARCHAR(40) NOT NULL CHECK (char_length(btrim(subject)) > 0),
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lesson_duration_minutes SMALLINT NOT NULL
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CHECK (lesson_duration_minutes BETWEEN 15 AND 360 AND lesson_duration_minutes % 15 = 0),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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CREATE TABLE feedback_records (
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id UUID PRIMARY KEY,
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owner_id UUID NOT NULL,
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profile_id UUID REFERENCES student_profiles(id) ON DELETE SET NULL,
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feedback_date DATE NOT NULL,
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content TEXT NOT NULL CHECK (char_length(btrim(content)) > 0),
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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 INDEX feedback_records_owner_date_idx
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ON feedback_records (owner_id, feedback_date DESC, updated_at DESC);
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CREATE INDEX feedback_records_owner_profile_idx
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ON feedback_records (owner_id, profile_id);
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