1
DROP TABLE users CASCADE;
3
login VARCHAR UNIQUE NOT NULL,
2
4
loginid SERIAL PRIMARY KEY NOT NULL,
3
login VARCHAR UNIQUE NOT NULL,
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state VARCHAR NOT NULL CHECK (state in ('no_agreement', 'pending',
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'enabled', 'disabled')),
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rolenm VARCHAR NOT NULL CHECK (rolenm in ('anyone', 'student',
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unixid INT UNIQUE NOT NULL, -- unix user id
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nick VARCHAR NOT NULL,
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fullname VARCHAR NOT NULL,
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studentid VARCHAR, -- may be null
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CREATE TABLE subject (
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subjectid SERIAL PRIMARY KEY NOT NULL,
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subj_code VARCHAR UNIQUE NOT NULL,
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subj_name VARCHAR NOT NULL,
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subj_short_name VARCHAR, -- may be null
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CREATE TABLE offering (
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studentid VARCHAR -- may be null
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DROP TABLE offerings CASCADE;
11
CREATE TABLE offerings (
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offeringid SERIAL PRIMARY KEY NOT NULL,
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subject INT4 REFERENCES subject (subjectid) 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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semester CHAR(1) NOT NULL,
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UNIQUE (subject, year, semester)
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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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DROP TABLE groups CASCADE;
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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 offering (offeringid),
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offeringid INT4 REFERENCES offerings (offeringid),
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createdby INT4 REFERENCES login (loginid) NOT NULL,
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epoch TIMESTAMP NOT NULL,
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25
UNIQUE (offeringid, groupnm)
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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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DROP TABLE group_invitations CASCADE;
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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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32
UNIQUE (loginid,groupid)
65
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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DROP TABLE group_members CASCADE;
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CREATE TABLE group_members (
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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),
69
40
UNIQUE (loginid,projectid),
70
41
PRIMARY KEY (loginid,groupid)
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DROP TABLE enrolment CASCADE;
73
45
CREATE TABLE enrolment (
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loginid INT4 REFERENCES login (loginid),
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offeringid INT4 REFERENCES offering (offeringid),
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loginid INT4 REFERENCES users (loginid),
47
offeringid INT4 REFERENCES offerings (offeringid),
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special_result VARCHAR,
79
special_supp_result VARCHAR,
81
51
PRIMARY KEY (loginid,offeringid)
84
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
89
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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DROP TABLE roles CASCADE;
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loginid INT4 PRIMARY KEY REFERENCES users (loginid),
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DROP TABLE projects CASCADE;
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CREATE TABLE projects (
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projectid SERIAL PRIMARY KEY NOT NULL,
65
offeringid INT4 REFERENCES offerings (offeringid) NOT NULL,
69
DROP TABLE project_extension CASCADE;
93
70
CREATE TABLE project_extension (
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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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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,
96
74
deadline TIMESTAMP NOT NULL,
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approver INT4 REFERENCES login (loginid) NOT NULL,
101
CREATE TABLE project_submission (
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assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
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projectid INT4 REFERENCES project (projectid) NOT NULL,
104
path VARCHAR NOT NULL,
105
revision INT4 NOT NULL
75
approver INT4 REFERENCES users (loginid) NOT NULL,
77
-- exactly one of loginid and groupid must be non-null
78
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
79
OR (loginid IS NULL AND groupid IS NOT NULL))
82
DROP TABLE project_mark CASCADE;
108
83
CREATE TABLE project_mark (
109
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
110
projectid INT4 REFERENCES project (projectid) NOT NULL,
84
loginid INT4 REFERENCES users (loginid),
85
groupid INT4 REFERENCES groups (groupid),
86
projectid INT4 REFERENCES projects (projectid) NOT NULL,
112
marker INT4 REFERENCES login (loginid) NOT NULL,
88
marker INT4 REFERENCES users (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;
119
99
CREATE TABLE problem (
120
100
problemid SERIAL PRIMARY KEY NOT NULL,
121
identifier VARCHAR UNIQUE NOT NULL,
125
CREATE TABLE worksheet (
126
worksheetid SERIAL PRIMARY KEY NOT NULL,
127
subject VARCHAR NOT NULL,
128
identifier VARCHAR NOT NULL,
131
UNIQUE (subject, identifier)
134
CREATE TABLE worksheet_problem (
135
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
136
problemid INT4 REFERENCES problem (problemid) NOT NULL,
138
PRIMARY KEY (worksheetid, problemid)
141
CREATE TABLE problem_tag (
142
problemid INT4 REFERENCES problem (problemid),
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DROP TABLE problem_tags CASCADE;
105
CREATE TABLE problem_tags (
106
problemid INT4 REFERENCES tutorial_problem (problemid),
143
107
tag VARCHAR NOT NULL,
145
standard BOOLEAN NOT NULL,
146
added_by INT4 REFERENCES login (loginid) NOT NULL,
108
added_by INT4 REFERENCES users (loginid) NOT NULL,
147
109
date TIMESTAMP NOT NULL,
148
110
PRIMARY KEY (problemid,added_by,tag)
113
DROP TABLE problem_test_case CASCADE;
151
114
CREATE TABLE problem_test_case (
152
115
problemid INT4 REFERENCES problem (problemid) NOT NULL,
153
116
testcaseid SERIAL UNIQUE NOT NULL,
156
119
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
159
CREATE TABLE problem_test_case_tag (
122
DROP TABLE problem_test_case_tags CASCADE;
123
CREATE TABLE problem_test_case_tags (
160
124
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
161
125
tag VARCHAR NOT NULL,
162
126
description VARCHAR,
163
standard BOOLEAN NOT NULL,
164
added_by INT4 REFERENCES login (loginid) NOT NULL,
127
added_by INT4 REFERENCES users (loginid) NOT NULL,
165
128
date TIMESTAMP NOT NULL,
166
129
PRIMARY KEY (testcaseid,added_by,tag)
132
DROP TABLE problem_attempt CASCADE;
169
133
CREATE TABLE problem_attempt (
170
134
problemid INT4 REFERENCES problem (problemid) NOT NULL,
171
loginid INT4 REFERENCES login (loginid) NOT NULL,
135
loginid INT4 REFERENCES users (loginid) NOT NULL,
172
136
date TIMESTAMP NOT NULL,
173
137
attempt VARCHAR NOT NULL,
174
138
complete BOOLEAN NOT NULL,
175
139
PRIMARY KEY (problemid,loginid,date)
178
CREATE TABLE problem_save (
179
problemid INT4 REFERENCES problem (problemid) NOT NULL,
180
loginid INT4 REFERENCES login (loginid) NOT NULL,
181
date TIMESTAMP NOT NULL,
182
text VARCHAR NOT NULL,
183
PRIMARY KEY (problemid,loginid)
142
DROP INDEX problem_attempt_index;
186
143
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
145
DROP TABLE problem_attempt_breakdown CASCADE;
188
146
CREATE TABLE problem_attempt_breakdown (
189
147
problemid INT4 REFERENCES problem (problemid) NOT NULL,
190
148
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
191
loginid INT4 REFERENCES login (loginid) NOT NULL,
149
loginid INT4 REFERENCES users (loginid) NOT NULL,
192
150
date TIMESTAMP NOT NULL,
196
CREATE TABLE problem_prerequisite (
154
DROP TABLE problem_prerequisites CASCADE;
155
CREATE TABLE problem_prerequisites (
197
156
parent INT4 REFERENCES problem (problemid) NOT NULL,
198
157
child INT4 REFERENCES problem (problemid) NOT NULL,
199
158
PRIMARY KEY (parent,child)