GSoC 2022: Manas Sivakumar Week 10

.github/workflows/ubuntu.yml

@@ -59,7 +59,14 @@ jobs:
             postgresql-${{ matrix.psql }}-pgrouting \
             postgresql-server-dev-${{ matrix.psql }} \
             postgresql-plpython3-${{ matrix.psql }}
-
+
+      - name: Install Google OR-Tools dependencies 
+        run: |
+          sudo su
+          umask 022
+          pip3 install ortools
+          exit
+
       - name: Install VROOM dependencies
         run: |
           sudo apt-get install libssl-dev libasio-dev libglpk-dev

.gitignore

@@ -11,6 +11,7 @@ gpush.sh
 vrprun.sh
 error_output.txt
 .vscode/
+vroom-v1.12.0/
 
 # files are ignored on gh-pages
 doxy

docqueries/or_tools/CMakeLists.txt

@@ -1,5 +1,7 @@
 SET(LOCAL_FILES
     knapsack
+    multiple_knapsack
+    bin_packing
     )
 
 foreach (f ${LOCAL_FILES})

docqueries/or_tools/bin_packing.result

@@ -0,0 +1,47 @@
+BEGIN;
+BEGIN
+SET client_min_messages TO NOTICE;
+SET
+DROP TABLE IF EXISTS bin_packing_query CASCADE;
+NOTICE:  table "bin_packing_query" does not exist, skipping
+DROP TABLE
+CREATE TABLE bin_packing_query(
+  weight INTEGER);
+CREATE TABLE
+INSERT INTO bin_packing_query (weight)
+VALUES
+(48), (30), (19), (36), (36), (27), (42), (42), (36), (24), (30);
+INSERT 0 11
+SELECT * FROM vrp_bin_packing('SELECT * FROM bin_packing_query', 100);
+NOTICE:  Entering Bin Packing program
+NOTICE:  Starting Execution of inner query
+INFO:  ('Number of rows processed : ', 11)
+NOTICE:  SQL query returned expected column names
+NOTICE:  SQL query returned expected column types
+NOTICE:  Finished Execution of inner query
+NOTICE:  SCIP solver ready!
+INFO:  ('Bin number', 0)
+INFO:  ('  Items packed', [0, 1, 2])
+INFO:  ('  Item weights', [48, 30, 19])
+INFO:  ('  Total weight', 97)
+INFO:  ('Bin number', 1)
+INFO:  ('  Items packed', [3, 4, 5])
+INFO:  ('  Item weights', [36, 36, 27])
+INFO:  ('  Total weight', 99)
+INFO:  ('Bin number', 2)
+INFO:  ('  Items packed', [6, 7])
+INFO:  ('  Item weights', [42, 42])
+INFO:  ('  Total weight', 84)
+INFO:  ('Bin number', 3)
+INFO:  ('  Items packed', [8, 9, 10])
+INFO:  ('  Item weights', [36, 24, 30])
+INFO:  ('  Total weight', 90)
+INFO:  ('Number of bins used', 4.0)
+NOTICE:  Exiting Bin Packing program
+ vrp_bin_packing 
+-----------------
+ Success
+(1 row)
+
+ROLLBACK;
+ROLLBACK

docqueries/or_tools/bin_packing.test.sql

@@ -0,0 +1,10 @@
+DROP TABLE IF EXISTS bin_packing_query CASCADE;
+
+CREATE TABLE bin_packing_query(
+  weight INTEGER);
+
+INSERT INTO bin_packing_query (weight)
+VALUES
+(48), (30), (19), (36), (36), (27), (42), (42), (36), (24), (30);
+
+SELECT * FROM vrp_bin_packing('SELECT * FROM bin_packing_query', 100);

docqueries/or_tools/knapsack.result

@@ -0,0 +1,51 @@
+BEGIN;
+BEGIN
+SET client_min_messages TO NOTICE;
+SET
+DROP TABLE IF EXISTS knapsack_query;
+NOTICE:  table "knapsack_query" does not exist, skipping
+DROP TABLE
+CREATE TABLE knapsack_query(
+  weight INTEGER,
+  cost INTEGER);
+CREATE TABLE
+INSERT INTO knapsack_query(weight,  cost)
+VALUES
+(12, 4),
+(2, 2),
+(1, 1),
+(4, 10),
+(1, 2);
+INSERT 0 5
+SELECT *
+FROM knapsack_query;
+ weight | cost 
+--------+------
+     12 |    4
+      2 |    2
+      1 |    1
+      4 |   10
+      1 |    2
+(5 rows)
+
+SELECT *
+FROM vrp_knapsack($$SELECT * FROM knapsack_query$$, 15);
+NOTICE:  Entering Knapsack program
+NOTICE:  Starting Execution of inner query
+INFO:  ('Number of rows processed : ', 5)
+NOTICE:  SQL query returned expected column names
+NOTICE:  SQL query returned expected column types
+NOTICE:  Finished Execution of inner query
+INFO:  ('Total value =', 15)
+INFO:  ('Total weight:', 8)
+INFO:  ('Packed items: ', [1, 2, 3, 4])
+INFO:  ('Packed weights: ', [2, 1, 4, 1])
+INFO:  ('Packed values: ', [2, 1, 10, 2])
+NOTICE:  Exiting program
+ vrp_knapsack 
+--------------
+ Success
+(1 row)
+
+ROLLBACK;
+ROLLBACK

docqueries/or_tools/knapsack.test.sql

@@ -1,8 +1,9 @@
-CREATE TABLE knapsack_data(
+DROP TABLE IF EXISTS knapsack_query;
+CREATE TABLE knapsack_query(
   weight INTEGER,
   cost INTEGER);
 
-INSERT INTO knapsack_data (weight,  cost)
+INSERT INTO knapsack_query(weight,  cost)
 VALUES
 (12, 4),
 (2, 2),
@@ -11,7 +12,7 @@ VALUES
 (1, 2);
 
 SELECT *
-FROM knapsack_data;
+FROM knapsack_query;
 
 SELECT *
-FROM vrp_knapsack($$SELECT weight, cost FROM knapsack_data$$, 3);
+FROM vrp_knapsack($$SELECT * FROM knapsack_query$$, 15);

docqueries/or_tools/multiple_knapsack.result

@@ -0,0 +1,96 @@
+BEGIN;
+BEGIN
+SET client_min_messages TO NOTICE;
+SET
+DROP TABLE IF EXISTS multiple_knapsack_query CASCADE;
+NOTICE:  table "multiple_knapsack_query" does not exist, skipping
+DROP TABLE
+CREATE TABLE multiple_knapsack_query(
+  weight INTEGER,
+  cost INTEGER);
+CREATE TABLE
+INSERT INTO multiple_knapsack_query (weight,  cost)
+VALUES
+(48, 10),
+(30, 30),
+(42, 25),
+(36, 50),
+(36, 35),
+(48, 30), 
+(42, 15), 
+(42, 40),
+(36, 30),
+(24, 35), 
+(30, 45), 
+(30, 10), 
+(42, 20), 
+(36, 30), 
+(36, 25);
+INSERT 0 15
+SELECT * 
+FROM multiple_knapsack_query;
+ weight | cost 
+--------+------
+     48 |   10
+     30 |   30
+     42 |   25
+     36 |   50
+     36 |   35
+     48 |   30
+     42 |   15
+     42 |   40
+     36 |   30
+     24 |   35
+     30 |   45
+     30 |   10
+     42 |   20
+     36 |   30
+     36 |   25
+(15 rows)
+
+SELECT * 
+FROM vrp_multiple_knapsack('SELECT * FROM multiple_knapsack_query', ARRAY[100,100,100,100,100]);
+NOTICE:  Entering Mulitple Knapsack program
+NOTICE:  Starting Execution of inner query
+INFO:  ('Number of rows processed : ', 15)
+NOTICE:  SQL query returned expected column names
+NOTICE:  SQL query returned expected column types
+NOTICE:  Finished Execution of inner query
+NOTICE:  SCIP solver ready!
+INFO:  ('Total value =', 395.0)
+INFO:  ('Bin :', 0)
+INFO:  Item 1 - weight: 30 value: 30
+INFO:  Item 3 - weight: 36 value: 50
+INFO:  Item 10 - weight: 30 value: 45
+INFO:  ('Packed bin weight', 96)
+INFO:  ('Packed bin value', 125)
+INFO:  ('Bin :', 1)
+INFO:  Item 2 - weight: 42 value: 25
+INFO:  Item 14 - weight: 36 value: 25
+INFO:  ('Packed bin weight', 78)
+INFO:  ('Packed bin value', 50)
+INFO:  ('Bin :', 2)
+INFO:  Item 4 - weight: 36 value: 35
+INFO:  Item 9 - weight: 24 value: 35
+INFO:  Item 13 - weight: 36 value: 30
+INFO:  ('Packed bin weight', 96)
+INFO:  ('Packed bin value', 100)
+INFO:  ('Bin :', 3)
+INFO:  Item 8 - weight: 36 value: 30
+INFO:  Item 12 - weight: 42 value: 20
+INFO:  ('Packed bin weight', 78)
+INFO:  ('Packed bin value', 50)
+INFO:  ('Bin :', 4)
+INFO:  Item 5 - weight: 48 value: 30
+INFO:  Item 7 - weight: 42 value: 40
+INFO:  ('Packed bin weight', 90)
+INFO:  ('Packed bin value', 70)
+INFO:  ('Total packed weight', 438)
+NOTICE:  Exiting Multiple Knapsack program
+ vrp_multiple_knapsack 
+-----------------------
+ Success
+(1 row)
+
+ROLLBACK;
+ROLLBACK

docqueries/or_tools/multiple_knapsack.test.sql

@@ -0,0 +1,29 @@
+DROP TABLE IF EXISTS multiple_knapsack_query CASCADE;
+
+CREATE TABLE multiple_knapsack_query(
+  weight INTEGER,
+  cost INTEGER);
+
+INSERT INTO multiple_knapsack_query (weight,  cost)
+VALUES
+(48, 10),
+(30, 30),
+(42, 25),
+(36, 50),
+(36, 35),
+(48, 30), 
+(42, 15), 
+(42, 40),
+(36, 30),
+(24, 35), 
+(30, 45), 
+(30, 10), 
+(42, 20), 
+(36, 30), 
+(36, 25);
+
+SELECT * 
+FROM multiple_knapsack_query;
+
+SELECT * 
+FROM vrp_multiple_knapsack('SELECT * FROM multiple_knapsack_query', ARRAY[100,100,100,100,100]);

docqueries/or_tools/test.conf

@@ -7,10 +7,14 @@
         'newdb' => 1,
         'tests' => [qw(
             knapsack
+            multiple_knapsack
+            bin_packing
             )],
 
         'documentation' => [qw(
             knapsack
+            multiple_knapsack
+            bin_packing
             )],
 
         'nottesting' => [qw(