contrib/tsm_system_rows

contrib/tsm_system_rows/expected/tsm_system_rows.out

@@ -0,0 +1,31 @@
+CREATE EXTENSION tsm_system_rows;
+CREATE TABLE test_tablesample (id int, name text) WITH (fillfactor=10); -- force smaller pages so we don't have to load too much data to get multiple pages
+INSERT INTO test_tablesample SELECT i, repeat(i::text, 1000) FROM generate_series(0, 30) s(i) ORDER BY i;
+ANALYZE test_tablesample;
+SELECT count(*) FROM test_tablesample TABLESAMPLE system_rows (1000);
+ count 
+-------
+    31
+(1 row)
+
+SELECT id FROM test_tablesample TABLESAMPLE system_rows (8) REPEATABLE (5432);
+ id 
+----
+  7
+ 14
+ 21
+ 28
+  4
+ 11
+ 18
+ 25
+(8 rows)
+
+EXPLAIN SELECT id FROM test_tablesample TABLESAMPLE system_rows (20) REPEATABLE (10);
+                                    QUERY PLAN                                     
+-----------------------------------------------------------------------------------
+ Sample Scan (system_rows) on test_tablesample  (cost=0.00..80.20 rows=20 width=4)
+(1 row)
+
+-- done
+DROP TABLE test_tablesample CASCADE;