khannaekta commented on a change in pull request #571:
URL: https://github.com/apache/madlib/pull/571#discussion_r723776016
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File path: src/ports/postgres/modules/dbscan/test/dbscan.sql_in
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@@ -118,27 +118,68 @@ SELECT assert(count(DISTINCT cluster_id) = 3, 'Incorrect
cluster count') FROM db
DROP TABLE IF EXISTS dbscan_train_data3;
CREATE TABLE dbscan_train_data3 (
-id_in integer,
-data0 integer,
-data1 integer);
-copy dbscan_train_data3 (id_in, data0, data1) FROM stdin delimiter '|';
-1|1|1
-2|2|2
-3|3|3
-4|4|4
-5|4|8
-6|17|8
-7|19|8
-8|19|9
-9|19|10
-10|3|111
-11|3|112
-12|3|113
-13|8|113
+ city TEXT,
+ country TEXT,
+ lat INTEGER,
+ lon INTEGER,
+ PRIMARY KEY (city, country)
+);
+COPY dbscan_train_data3 (city, country, lon, lat) FROM stdin csv header;
+city,country,lat,lon
+Bangkok,Thailand,13,100
+Athens,Greece,37,23
+Beijing,China,39,116
+St. Petersburg,Russia,59,30
+Barcelona,Spain,23,9
+Tehran,Iran,35,51
+Bristol,England,51,-2
+São Paulo,Brazil,-23,-46
+Berlin,Germany,30,25
+New Dehli,India,28,77
+Sydney,Australia,-34,151
+Bogotá,Colombia,4,-74
+Kingston,Jamaica,17,-76
+Rome,Italy,41,12
+Bombay,India,19,72
+Cape Town,South Africa,-33,22
+Cairo,Egypt,30,31
+Guayaquil,Ecuador,-2,-79
+Jakarta,Indonesia,-6,106
+Hamburg,Germany,53,2
+Hong Kong,China,22,114
+Bordeux,France,44,0
+Nairobi,Kenya,-1,36
+Osaka,Japan,34,135
\.
+-- Test that id and point params may be passed in as expressions
DROP TABLE IF EXISTS out1, out1_summary;
-SELECT
dbscan('dbscan_train_data3','out1','id_in','ARRAY[data0,data1]',20,4,'squared_dist_norm2','brute');
+SELECT dbscan('dbscan_train_data3',
+ 'out1',
+ $$('x' || left(md5(city || ',' || country),16))::BIT(64)::BIGINT$$
+ ,'ARRAY[lat,lon]',
+ 50, 1, 'squared_dist_norm2', 'optimized'
+);
+
+SELECT assert(
+ id_column = $$('x' || left(md5(city || ',' ||
country),16))::BIT(64)::BIGINT$$,
+ 'id expression passed in does not match expression saved in summary
table: ' || id_column
+) FROM out1_summary;
+SELECT assert(
+ expr_point = $$ARRAY[lat,lon]$$,
+ 'point expression passed in does not match expression saved in summary
table: ' || expr_point
+) FROM out1_summary; -- verify point expression saved in summary
+SELECT assert(COUNT(*) = 20, 'Wrong number of rows returned') FROM out1; --
Should return 20 non-noise points
+
+-- Results in Graph WCC error - TODO: fix
Review comment:
Do we still want to validate this or we can remove it?
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