Created
August 18, 2019 16:13
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(optimal) Database delete/insert sequence
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digraph deps { | |
A -> B; | |
B -> C; | |
A -> D; | |
E -> D; | |
} |
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Minimize | |
a_i + b_i + c_i + d_i + e_i | |
Subject To | |
c01: a_d - b_d <= -1 | |
c02: b_d - c_d <= -1 | |
c03: a_d - d_d <= -1 | |
c04: e_d - d_d <= -1 | |
c05: c_d - c_i <= -1 | |
c06: b_d - b_i <= -1 | |
c07: c_i - b_i <= -1 | |
c08: b_i - a_i <= -1 | |
c09: d_d - d_i <= -1 | |
c10: d_i - a_i <= -1 | |
c11: e_d - e_i <= -1 | |
c12: d_i - e_i <= -1 | |
Bounds | |
1 <= a_d <= 10 | |
1 <= b_d <= 10 | |
1 <= c_d <= 10 | |
1 <= d_d <= 10 | |
1 <= e_d <= 10 | |
1 <= a_i <= 10 | |
1 <= b_i <= 10 | |
1 <= c_i <= 10 | |
1 <= d_i <= 10 | |
1 <= e_i <= 10 | |
Integer | |
a_d | |
b_d | |
c_d | |
d_d | |
e_d | |
c_i | |
b_i | |
a_i | |
d_i | |
e_i | |
End |
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Problem: | |
Rows: 12 | |
Columns: 10 (10 integer, 0 binary) | |
Non-zeros: 24 | |
Status: INTEGER OPTIMAL | |
Objective: obj = 22 (MINimum) | |
No. Row name Activity Lower bound Upper bound | |
------ ------------ ------------- ------------- ------------- | |
1 c01 -1 -1 | |
2 c02 -1 -1 | |
3 c03 -1 -1 | |
4 c04 -1 -1 | |
5 c05 -1 -1 | |
6 c06 -3 -1 | |
7 c07 -1 -1 | |
8 c08 -1 -1 | |
9 c09 -1 -1 | |
10 c10 -3 -1 | |
11 c11 -3 -1 | |
12 c12 -1 -1 | |
No. Column name Activity Lower bound Upper bound | |
------ ------------ ------------- ------------- ------------- | |
1 a_i * 6 1 10 | |
2 b_i * 5 1 10 | |
3 c_i * 4 1 10 | |
4 d_i * 3 1 10 | |
5 e_i * 4 1 10 | |
6 a_d * 1 1 10 | |
7 b_d * 2 1 10 | |
8 c_d * 3 1 10 | |
9 d_d * 2 1 10 | |
10 e_d * 1 1 10 | |
Integer feasibility conditions: | |
KKT.PE: max.abs.err = 0.00e+00 on row 0 | |
max.rel.err = 0.00e+00 on row 0 | |
High quality | |
KKT.PB: max.abs.err = 0.00e+00 on row 0 | |
max.rel.err = 0.00e+00 on row 0 | |
High quality | |
End of output |
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#/bin/bash | |
# dot -Tpng dependency-relationship.dot | display - | |
glpsol --cpxlp fk.lp -o output.txt |
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