should be it

external/duckdb/test/sql/sample/large_sample.test_slow

@@ -0,0 +1,40 @@
+# name: test/sql/sample/large_sample.test_slow
+# description: Test sampling of larger relations
+# group: [sample]
+
+statement ok
+PRAGMA enable_verification;
+
+# sample on a larger data set
+query I
+SELECT COUNT(*) FROM range(10000) USING SAMPLE 5
+----
+5
+
+# test sample with multiple columns
+# we insert the same data in the entire column
+statement ok
+CREATE TABLE test2 AS SELECT i a, i::VARCHAR b, CONCAT(i, ' - ', i) c FROM repeat(1, 1000) tbl(i)
+
+query III
+SELECT a, b, c FROM test2 USING SAMPLE 3;
+----
+1	1	1 - 1
+1	1	1 - 1
+1	1	1 - 1
+
+# reservoir sample from a larger dataset
+query I
+select count(*) from range(200000) tablesample reservoir(90%);
+----
+180000
+
+loop i 0 3
+
+# sample_size sampling with a large reservoir
+query I nosort reservoirlarge
+select count(*) from (select * from range(200000) tbl(i) where i % 997 != 0) tbl(i) using sample 80% (reservoir);
+----
+
+endloop
+