1
DROP TABLE users CASCADE;
3
2
login VARCHAR UNIQUE NOT NULL,
4
3
loginid SERIAL PRIMARY KEY NOT NULL,
4
unixid INT UNIQUE NOT NULL, -- unix user id
7
9
studentid VARCHAR -- may be null
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DROP TABLE offerings CASCADE;
11
CREATE TABLE offerings (
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CREATE TABLE offering (
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offeringid SERIAL PRIMARY KEY NOT NULL,
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subj_name VARCHAR NOT NULL,
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subj_code VARCHAR NOT NULL,
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year CHAR(4) NOT NULL,
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DROP TABLE groups CASCADE;
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groupnm VARCHAR NOT NULL,
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semester CHAR(1) NOT NULL,
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CREATE TABLE project (
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projectid SERIAL PRIMARY KEY NOT NULL,
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offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
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CREATE TABLE project_group (
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groupnm VARCHAR NOT NULL,
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groupid SERIAL PRIMARY KEY NOT NULL,
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offeringid INT4 REFERENCES offerings (offeringid),
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offeringid INT4 REFERENCES offering (offeringid),
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createdby INT4 REFERENCES login (loginid) NOT NULL,
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epoch TIMESTAMP NOT NULL,
25
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UNIQUE (offeringid, groupnm)
28
DROP TABLE group_invitations CASCADE;
29
CREATE TABLE group_invitations (
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loginid INT4 REFERENCES users (loginid),
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groupid INT4 REFERENCES groups (groupid),
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CREATE TABLE group_invitation (
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loginid INT4 REFERENCES login (loginid) NOT NULL,
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groupid INT4 REFERENCES project_group (groupid) NOT NULL,
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inviter INT4 REFERENCES login (loginid) NOT NULL,
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invited TIMESTAMP NOT NULL,
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UNIQUE (loginid,groupid)
35
DROP TABLE group_members CASCADE;
36
CREATE TABLE group_members (
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loginid INT4 REFERENCES users (loginid),
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groupid INT4 REFERENCES groups (groupid),
39
projectid INT4 REFERENCES projects (projectid),
48
CREATE TABLE group_member (
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loginid INT4 REFERENCES login (loginid),
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groupid INT4 REFERENCES project_group (groupid),
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projectid INT4 REFERENCES project (projectid),
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UNIQUE (loginid,projectid),
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PRIMARY KEY (loginid,groupid)
44
DROP TABLE enrolment CASCADE;
45
56
CREATE TABLE enrolment (
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loginid INT4 REFERENCES users (loginid),
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offeringid INT4 REFERENCES offerings (offeringid),
57
loginid INT4 REFERENCES login (loginid),
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offeringid INT4 REFERENCES offering (offeringid),
60
special_result VARCHAR,
62
special_supp_result VARCHAR,
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64
PRIMARY KEY (loginid,offeringid)
54
DROP TABLE roles CASCADE;
56
loginid INT4 PRIMARY KEY REFERENCES users (loginid),
60
DROP TABLE projects CASCADE;
61
CREATE TABLE projects (
62
projectid SERIAL PRIMARY KEY NOT NULL,
65
offeringid INT4 REFERENCES offerings (offeringid) NOT NULL,
69
DROP TABLE project_extension CASCADE;
67
CREATE TABLE assessed (
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assessedid SERIAL PRIMARY KEY NOT NULL,
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loginid INT4 REFERENCES login (loginid),
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groupid INT4 REFERENCES project_group (groupid),
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-- exactly one of loginid and groupid must be non-null
72
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
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OR (loginid IS NULL AND groupid IS NOT NULL))
70
76
CREATE TABLE project_extension (
71
loginid INT4 REFERENCES users (loginid),
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groupid INT4 REFERENCES groups (groupid),
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projectid INT4 REFERENCES projects (projectid) NOT NULL,
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assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
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projectid INT4 REFERENCES project (projectid) NOT NULL,
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deadline TIMESTAMP NOT NULL,
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approver INT4 REFERENCES users (loginid) NOT NULL,
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-- exactly one of loginid and groupid must be non-null
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CHECK ((loginid IS NOT NULL AND groupid IS NULL)
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OR (loginid IS NULL AND groupid IS NOT NULL))
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approver INT4 REFERENCES login (loginid) NOT NULL,
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DROP TABLE project_mark CASCADE;
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84
CREATE TABLE project_mark (
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loginid INT4 REFERENCES users (loginid),
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groupid INT4 REFERENCES groups (groupid),
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projectid INT4 REFERENCES projects (projectid) NOT NULL,
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assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
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projectid INT4 REFERENCES project (projectid) NOT NULL,
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marker INT4 REFERENCES users (loginid) NOT NULL,
88
marker INT4 REFERENCES login (loginid) NOT NULL,
93
-- exactly one of loginid and groupid must be non-null
94
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
95
OR (loginid IS NULL AND groupid IS NOT NULL))
98
DROP TABLE problem CASCADE;
99
95
CREATE TABLE problem (
100
96
problemid SERIAL PRIMARY KEY NOT NULL,
104
DROP TABLE problem_tags CASCADE;
105
CREATE TABLE problem_tags (
106
problemid INT4 REFERENCES tutorial_problem (problemid),
100
CREATE TABLE problem_tag (
101
problemid INT4 REFERENCES problem (problemid),
107
102
tag VARCHAR NOT NULL,
108
added_by INT4 REFERENCES users (loginid) NOT NULL,
104
standard BOOLEAN NOT NULL,
105
added_by INT4 REFERENCES login (loginid) NOT NULL,
109
106
date TIMESTAMP NOT NULL,
110
107
PRIMARY KEY (problemid,added_by,tag)
113
DROP TABLE problem_test_case CASCADE;
114
110
CREATE TABLE problem_test_case (
115
111
problemid INT4 REFERENCES problem (problemid) NOT NULL,
116
112
testcaseid SERIAL UNIQUE NOT NULL,
119
115
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
122
DROP TABLE problem_test_case_tags CASCADE;
123
CREATE TABLE problem_test_case_tags (
118
CREATE TABLE problem_test_case_tag (
124
119
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
125
120
tag VARCHAR NOT NULL,
126
121
description VARCHAR,
127
added_by INT4 REFERENCES users (loginid) NOT NULL,
122
standard BOOLEAN NOT NULL,
123
added_by INT4 REFERENCES login (loginid) NOT NULL,
128
124
date TIMESTAMP NOT NULL,
129
125
PRIMARY KEY (testcaseid,added_by,tag)
132
DROP TABLE problem_attempt CASCADE;
133
128
CREATE TABLE problem_attempt (
134
129
problemid INT4 REFERENCES problem (problemid) NOT NULL,
135
loginid INT4 REFERENCES users (loginid) NOT NULL,
130
loginid INT4 REFERENCES login (loginid) NOT NULL,
136
131
date TIMESTAMP NOT NULL,
137
132
attempt VARCHAR NOT NULL,
138
133
complete BOOLEAN NOT NULL,
139
134
PRIMARY KEY (problemid,loginid,date)
142
DROP INDEX problem_attempt_index;
143
137
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
145
DROP TABLE problem_attempt_breakdown CASCADE;
146
139
CREATE TABLE problem_attempt_breakdown (
147
140
problemid INT4 REFERENCES problem (problemid) NOT NULL,
148
141
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
149
loginid INT4 REFERENCES users (loginid) NOT NULL,
142
loginid INT4 REFERENCES login (loginid) NOT NULL,
150
143
date TIMESTAMP NOT NULL,
154
DROP TABLE problem_prerequisites CASCADE;
155
CREATE TABLE problem_prerequisites (
147
CREATE TABLE problem_prerequisite (
156
148
parent INT4 REFERENCES problem (problemid) NOT NULL,
157
149
child INT4 REFERENCES problem (problemid) NOT NULL,
158
150
PRIMARY KEY (parent,child)