Add sql schema for postgres
This commit is contained in:
Esa Kataja
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-- PostgreSQL Schema Definition for Eurovision 25 Homereview Backend
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-- Converted from DuckDB schema
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-- Target Database: PostgreSQL
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-- Note: Timestamps default to creation time; application logic should handle 'updated_at' updates.
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-- Drop objects in reverse order of dependency and existence check
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DROP TABLE IF EXISTS Review;
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DROP TABLE IF EXISTS Song;
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DROP TABLE IF EXISTS "User"; -- Quoted because USER is a reserved keyword
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DROP TABLE IF EXISTS Team;
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DROP TABLE IF EXISTS CountryCodes;
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-- =============================================================================
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-- Table: Group
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-- Stores information about the different households or groups participating.
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-- =============================================================================
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CREATE TABLE "Team" (
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id INTEGER GENERATED ALWAYS AS IDENTITY PRIMARY KEY, -- Use IDENTITY for auto-increment
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name VARCHAR(255) UNIQUE NOT NULL, -- The name of the household/group
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, -- Timestamp when the group was created
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP -- Timestamp when the group was last updated
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);
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-- =============================================================================
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-- Table: User
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-- Stores information about individual users (players and admins).
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-- =============================================================================
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CREATE TABLE "User" (
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id INTEGER GENERATED ALWAYS AS IDENTITY PRIMARY KEY, -- Use IDENTITY for auto-increment
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username VARCHAR(255) UNIQUE NOT NULL, -- The user's login name
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hashed_password VARCHAR(255) NOT NULL, -- The securely hashed password
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email VARCHAR(255) UNIQUE, -- User's email address (nullable)
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team_id INTEGER NOT NULL, -- Foreign Key -> Group.id
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avatar_id INTEGER DEFAULT 0 NOT NULL, -- Identifier for the user's avatar
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is_active BOOLEAN DEFAULT TRUE NOT NULL, -- Flag indicating if the user account is active
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is_admin BOOLEAN DEFAULT FALSE NOT NULL, -- Flag indicating if the user has admin privileges
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last_login TIMESTAMP DEFAULT '1970-01-01 00:00:00', -- Timestamp when the user was last logged in. Epoch (1970-01-01) means "never logged in"
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, -- Timestamp when the user was created
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, -- Timestamp when the user was last updated
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FOREIGN KEY (team_id) REFERENCES "Team"(id) -- Link to the Team table
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);
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-- =============================================================================
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-- Table: Song
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-- Stores information about each participating song in the contest.
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-- =============================================================================
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CREATE TABLE Song (
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id INTEGER GENERATED ALWAYS AS IDENTITY PRIMARY KEY, -- Use IDENTITY for auto-increment
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year INTEGER NOT NULL, -- The year of the Eurovision contest
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country VARCHAR(255) NOT NULL, -- The participating country name
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artist VARCHAR(255) NOT NULL, -- The name of the performing artist(s)
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title VARCHAR(255) NOT NULL, -- The title of the song
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running_order INTEGER NOT NULL, -- Official order in the show (nullable)
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lyrics_url VARCHAR(255), -- URL to the original lyrics (nullable)
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artist_url VARCHAR(255), -- URL to the artist's page (nullable)
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flag_url VARCHAR(255), -- URL to the country flag (nullable)
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lyrics_original TEXT, -- Original lyrics (nullable)
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lyrics_translation_fi TEXT, -- Finnish translation (nullable)
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tags TEXT[], -- Array of tags (PostgreSQL array type)
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confidence FLOAT NOT NULL DEFAULT 0.0, -- Confidence level of the translation (nullable)
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language VARCHAR(50) NOT NULL, -- Language of the song (nullable)
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, -- Timestamp when the song entry was created
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP -- Timestamp when the song entry was last updated
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);
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-- Add index for faster lookups by year as specified in documentation
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CREATE INDEX idx_song_year ON Song (year);
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-- =============================================================================
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-- Table: Review
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-- Stores the scores and comments submitted by a user for a specific song.
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-- =============================================================================
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CREATE TABLE Review (
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id INTEGER GENERATED ALWAYS AS IDENTITY PRIMARY KEY, -- Use IDENTITY for auto-increment
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user_id INTEGER NOT NULL, -- Foreign Key -> User.id
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song_id INTEGER NOT NULL, -- Foreign Key -> Song.id
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score_song INTEGER NOT NULL, -- Score (1-100) for song quality
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score_show INTEGER NOT NULL, -- Score (1-100) for the stage show
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score_costume INTEGER NOT NULL, -- Score (1-100) for wardrobe/costumes
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text_review TEXT, -- Optional textual comments (nullable)
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, -- Timestamp when the review was created
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, -- Timestamp when the review was last modified
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FOREIGN KEY (user_id) REFERENCES "User"(id), -- Link to the User table
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FOREIGN KEY (song_id) REFERENCES Song(id), -- Link to the Song table
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-- Ensure scores are within the valid range (1-100)
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CHECK (score_song >= 1 AND score_song <= 100),
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CHECK (score_show >= 1 AND score_show <= 100),
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CHECK (score_costume >= 1 AND score_costume <= 100),
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-- Ensure each user can only submit one review per song
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UNIQUE (user_id, song_id)
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);
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CREATE TABLE CountryCodes (
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code VARCHAR(10) PRIMARY KEY,
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name_en VARCHAR(255) NOT NULL,
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name_fi VARCHAR(255) NOT NULL,
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name_sv VARCHAR(255) NOT NULL
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);
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-- Insert country codes data
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('ALB', 'Albania', 'Albania', 'Albanien');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('ARM', 'Armenia', 'Armenia', 'Armenien');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('AUS', 'Australia', 'Australia', 'Australien');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('AUT', 'Austria', 'Itävalta', 'Österrike');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('AZE', 'Azerbaijan', 'Azerbaidžan', 'Azerbajdzjan');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('BEL', 'Belgium', 'Belgia', 'Belgien');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('HRV', 'Croatia', 'Kroatia', 'Kroatien');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('CYP', 'Cyprus', 'Kypros', 'Cypern');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('CZE', 'Czechia', 'Tšekki', 'Tjeckien');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('DNK', 'Denmark', 'Tanska', 'Danmark');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('EST', 'Estonia', 'Viro', 'Estland');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('FIN', 'Finland', 'Suomi', 'Finland');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('FRA', 'France', 'Ranska', 'Frankrike');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('GEO', 'Georgia', 'Georgia', 'Georgien');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('DEU', 'Germany', 'Saksa', 'Tyskland');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('GRC', 'Greece', 'Kreikka', 'Grekland');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('ISL', 'Iceland', 'Islanti', 'Island');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('IRL', 'Ireland', 'Irlanti', 'Irland');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('ISR', 'Israel', 'Israel', 'Israel');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('ITA', 'Italy', 'Italia', 'Italien');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('LVA', 'Latvia', 'Latvia', 'Lettland');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('LTU', 'Lithuania', 'Liettua', 'Litauen');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('LUX', 'Luxembourg', 'Luxemburg', 'Luxemburg');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('MLT', 'Malta', 'Malta', 'Malta');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('MNE', 'Montenegro', 'Montenegro', 'Montenegro');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('NLD', 'Netherlands', 'Alankomaat', 'Nederländerna');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('NOR', 'Norway', 'Norja', 'Norge');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('POL', 'Poland', 'Puola', 'Polen');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('PRT', 'Portugal', 'Portugali', 'Portugal');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('SMR', 'San Marino', 'San Marino', 'San Marino');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('SRB', 'Serbia', 'Serbia', 'Serbien');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('SVN', 'Slovenia', 'Slovenia', 'Slovenien');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('ESP', 'Spain', 'Espanja', 'Spanien');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('SWE', 'Sweden', 'Ruotsi', 'Sverige');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('CHE', 'Switzerland', 'Sveitsi', 'Schweiz');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('UKR', 'Ukraine', 'Ukraina', 'Ukraina');
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INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('GBR', 'United Kingdom', 'Englanti', 'Storbritannien');
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-- =============================================================================
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-- Views (Optional - Not Created Here Based on Documentation Decision)
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-- =============================================================================
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-- The documentation suggests performing result aggregations in the application
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-- layer. No CREATE VIEW statements are included.
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-- =============================================================================
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-- End of Schema Definition
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