2
2
login VARCHAR UNIQUE NOT NULL,
3
3
loginid SERIAL PRIMARY KEY NOT NULL,
4
unixid INT UNIQUE NOT NULL, -- unix user id
6
studentid VARCHAR, -- may be null
10
group VARCHAR NOT NULL,
9
studentid VARCHAR -- may be null
12
CREATE TABLE offering (
13
offeringid SERIAL PRIMARY KEY NOT NULL,
14
subj_name VARCHAR NOT NULL,
15
subj_code VARCHAR NOT NULL,
16
year CHAR(4) NOT NULL,
17
semester CHAR(1) NOT NULL,
21
CREATE TABLE project (
22
projectid SERIAL PRIMARY KEY NOT NULL,
25
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
29
CREATE TABLE project_group (
30
groupnm VARCHAR NOT NULL,
11
31
groupid SERIAL PRIMARY KEY NOT NULL,
12
offeringid INT4 REFERENCES offerings (offeringid),
32
offeringid INT4 REFERENCES offering (offeringid),
14
UNIQUE (offeringid, group)
34
createdby INT4 REFERENCES login (loginid) NOT NULL,
35
epoch TIMESTAMP NOT NULL,
36
UNIQUE (offeringid, groupnm)
17
CREATE TABLE group_invitations (
18
loginid INT4 REFERENCES users (loginid),
19
groupid INT4 REFERENCES groups (groupid),
39
CREATE TABLE group_invitation (
40
loginid INT4 REFERENCES login (loginid) NOT NULL,
41
groupid INT4 REFERENCES project_group (groupid) NOT NULL,
42
inviter INT4 REFERENCES login (loginid) NOT NULL,
43
invited TIMESTAMP NOT NULL,
20
45
UNIQUE (loginid,groupid)
23
CREATE TABLE group_members (
24
loginid INT4 REFERENCES users (loginid),
25
groupid INT4 REFERENCES groups (groupid),
26
projectid INT4 REFERENCES projects (projectid),
48
CREATE TABLE group_member (
49
loginid INT4 REFERENCES login (loginid),
50
groupid INT4 REFERENCES project_group (groupid),
51
projectid INT4 REFERENCES project (projectid),
27
52
UNIQUE (loginid,projectid),
28
53
PRIMARY KEY (loginid,groupid)
31
56
CREATE TABLE enrolment (
32
loginid INT4 REFERENCES users (loginid),
33
offeringid INT4 REFERENCES offerings (offeringid),
57
loginid INT4 REFERENCES login (loginid),
58
offeringid INT4 REFERENCES offering (offeringid),
60
special_result VARCHAR,
62
special_supp_result VARCHAR,
37
64
PRIMARY KEY (loginid,offeringid)
41
loginid INT4 PRIMARY KEY REFERENCES users (loginid),
45
CREATE TABLE projects (
46
projectid SERIAL PRIMARY KEY NOT NULL,
49
offeringid INT4 REFERENCES offerings (offeringid) NOT NULL,
67
CREATE TABLE assessed (
68
assessedid SERIAL PRIMARY KEY NOT NULL,
69
loginid INT4 REFERENCES login (loginid),
70
groupid INT4 REFERENCES project_group (groupid),
71
-- exactly one of loginid and groupid must be non-null
72
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
73
OR (loginid IS NULL AND groupid IS NOT NULL))
53
76
CREATE TABLE project_extension (
55
projectid INT4 REFERENCES projects (projectid) NOT NULL,
77
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
78
projectid INT4 REFERENCES project (projectid) NOT NULL,
56
79
deadline TIMESTAMP NOT NULL,
57
approver INT4 REFERENCES users (loginid) NOT NULL,
80
approver INT4 REFERENCES login (loginid) NOT NULL,
61
84
CREATE TABLE project_mark (
63
projectid INT4 REFERENCES projects (projectid) NOT NULL,
85
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
86
projectid INT4 REFERENCES project (projectid) NOT NULL,
65
marker INT4 REFERENCES users (loginid) NOT NULL,
88
marker INT4 REFERENCES login (loginid) NOT NULL,
70
PRIMARY KEY (loginid/groupid, projectid, componentid)
73
95
CREATE TABLE problem (
91
115
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
94
CREATE TABLE problem_test_case_tags (
118
CREATE TABLE problem_test_case_tag (
95
119
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
96
120
tag VARCHAR NOT NULL,
97
121
description VARCHAR,
98
added_by INT4 REFERENCES users (loginid) NOT NULL,
99
when TIMESTAMP NOT NULL,
122
standard BOOLEAN NOT NULL,
123
added_by INT4 REFERENCES login (loginid) NOT NULL,
124
date TIMESTAMP NOT NULL,
100
125
PRIMARY KEY (testcaseid,added_by,tag)
103
128
CREATE TABLE problem_attempt (
104
129
problemid INT4 REFERENCES problem (problemid) NOT NULL,
105
loginid INT4 REFERENCES users (loginid) NOT NULL,
106
when TIMESTAMP NOT NULL,
130
loginid INT4 REFERENCES login (loginid) NOT NULL,
131
date TIMESTAMP NOT NULL,
107
132
attempt VARCHAR NOT NULL,
108
133
complete BOOLEAN NOT NULL,
109
PRIMARY KEY (problemid,loginid,when)
134
PRIMARY KEY (problemid,loginid,date)
112
CREATE INDEX indexname ON problem_attempt (problemid, login);
137
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
114
139
CREATE TABLE problem_attempt_breakdown (
115
140
problemid INT4 REFERENCES problem (problemid) NOT NULL,
116
141
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
117
loginid INT4 REFERENCES users (loginid) NOT NULL,
118
when TIMESTAMP NOT NULL,
142
loginid INT4 REFERENCES login (loginid) NOT NULL,
143
date TIMESTAMP NOT NULL,
122
CREATE TABLE problem_prerequisites (
147
CREATE TABLE problem_prerequisite (
123
148
parent INT4 REFERENCES problem (problemid) NOT NULL,
124
149
child INT4 REFERENCES problem (problemid) NOT NULL,
125
150
PRIMARY KEY (parent,child)