wip

src/test/regress/expected/multi_agg_approximate_distinct.out

@@ -1,201 +0,0 @@
---
--- MULTI_AGG_APPROXIMATE_DISTINCT
---
--- Create HLL extension if present, print false result otherwise
-SELECT CASE WHEN COUNT(*) > 0 THEN
-	'CREATE EXTENSION HLL'
-ELSE 'SELECT false AS hll_present' END
-AS create_cmd FROM pg_available_extensions()
-WHERE name = 'hll'
-\gset
-:create_cmd;
-SET citus.coordinator_aggregation_strategy TO 'disabled';
--- Try to execute count(distinct) when approximate distincts aren't enabled
-SELECT count(distinct l_orderkey) FROM lineitem;
- count
----------------------------------------------------------------------
-  2985
-(1 row)
-
--- Check approximate count(distinct) at different precisions / error rates
-SET citus.count_distinct_error_rate = 0.1;
-SELECT count(distinct l_orderkey) FROM lineitem;
- count
----------------------------------------------------------------------
-  2612
-(1 row)
-
-SET citus.count_distinct_error_rate = 0.01;
-SELECT count(distinct l_orderkey) FROM lineitem;
- count
----------------------------------------------------------------------
-  2967
-(1 row)
-
--- Check approximate count(distinct) for different data types
-SELECT count(distinct l_partkey) FROM lineitem;
- count
----------------------------------------------------------------------
- 11654
-(1 row)
-
-SELECT count(distinct l_extendedprice) FROM lineitem;
- count
----------------------------------------------------------------------
- 11691
-(1 row)
-
-SELECT count(distinct l_shipdate) FROM lineitem;
- count
----------------------------------------------------------------------
-  2483
-(1 row)
-
-SELECT count(distinct l_comment) FROM lineitem;
- count
----------------------------------------------------------------------
- 11788
-(1 row)
-
--- Check that we can execute approximate count(distinct) on complex expressions
-SELECT count(distinct (l_orderkey * 2 + 1)) FROM lineitem;
- count
----------------------------------------------------------------------
-  2980
-(1 row)
-
-SELECT count(distinct extract(month from l_shipdate)) AS my_month FROM lineitem;
- my_month
----------------------------------------------------------------------
-       12
-(1 row)
-
-SELECT count(distinct l_partkey) / count(distinct l_orderkey) FROM lineitem;
- ?column?
----------------------------------------------------------------------
-        3
-(1 row)
-
--- Check that we can execute approximate count(distinct) on select queries that
--- contain different filter, join, sort and limit clauses
-SELECT count(distinct l_orderkey) FROM lineitem
-	WHERE octet_length(l_comment) + octet_length('randomtext'::text) > 40;
- count
----------------------------------------------------------------------
-  2355
-(1 row)
-
-SELECT count(DISTINCT l_orderkey) FROM lineitem, orders
-	WHERE l_orderkey = o_orderkey AND l_quantity < 5;
- count
----------------------------------------------------------------------
-   835
-(1 row)
-
-SELECT count(DISTINCT l_orderkey) as distinct_order_count, l_quantity FROM lineitem
-	WHERE l_quantity < 32.0
-	GROUP BY l_quantity
-	ORDER BY distinct_order_count ASC, l_quantity ASC
-	LIMIT 10;
- distinct_order_count | l_quantity
----------------------------------------------------------------------
-                  210 |      29.00
-                  216 |      13.00
-                  217 |      16.00
-                  219 |       3.00
-                  220 |      18.00
-                  222 |      14.00
-                  223 |       7.00
-                  223 |      17.00
-                  223 |      26.00
-                  223 |      31.00
-(10 rows)
-
--- Check that approximate count(distinct) works at a table in a schema other than public
--- create necessary objects
-SET citus.next_shard_id TO 20000000;
-SET citus.next_placement_id TO 20000000;
-CREATE SCHEMA test_count_distinct_schema;
-CREATE TABLE test_count_distinct_schema.nation_hash(
-    n_nationkey integer not null,
-    n_name char(25) not null,
-    n_regionkey integer not null,
-    n_comment varchar(152)
-);
-SELECT create_distributed_table('test_count_distinct_schema.nation_hash', 'n_nationkey', 'hash');
- create_distributed_table
----------------------------------------------------------------------
-
-(1 row)
-
-\copy test_count_distinct_schema.nation_hash FROM STDIN with delimiter '|';
-SET search_path TO public;
-SET citus.count_distinct_error_rate TO 0.01;
-SELECT COUNT (DISTINCT n_regionkey) FROM test_count_distinct_schema.nation_hash;
- count
----------------------------------------------------------------------
-     3
-(1 row)
-
--- test with search_path is set
-SET search_path TO test_count_distinct_schema;
-SELECT COUNT (DISTINCT n_regionkey) FROM nation_hash;
- count
----------------------------------------------------------------------
-     3
-(1 row)
-
-SET search_path TO public;
--- If we have an order by on count(distinct) that we intend to push down to
--- worker nodes, we need to error out. Otherwise, we are fine.
-SET citus.limit_clause_row_fetch_count = 1000;
-SELECT l_returnflag, count(DISTINCT l_shipdate) as count_distinct, count(*) as total
-	FROM lineitem
-	GROUP BY l_returnflag
-	ORDER BY count_distinct
-	LIMIT 10;
-ERROR:  cannot approximate count(distinct) and order by it
-HINT:  You might need to disable approximations for either count(distinct) or limit through configuration.
-SELECT l_returnflag, count(DISTINCT l_shipdate) as count_distinct, count(*) as total
-	FROM lineitem
-	GROUP BY l_returnflag
-	ORDER BY total
-	LIMIT 10;
- l_returnflag | count_distinct | total
----------------------------------------------------------------------
- R            |           1103 |  2901
- A            |           1108 |  2944
- N            |           1265 |  6155
-(3 rows)
-
-SELECT
-	l_orderkey,
-	count(l_partkey) FILTER (WHERE l_shipmode = 'AIR'),
-	count(DISTINCT l_partkey) FILTER (WHERE l_shipmode = 'AIR'),
-	count(DISTINCT CASE WHEN l_shipmode = 'AIR' THEN l_partkey ELSE NULL END)
-	FROM lineitem
-	GROUP BY l_orderkey
-	ORDER BY 2 DESC, 1 DESC
-	LIMIT 10;
- l_orderkey | count | count | count
----------------------------------------------------------------------
-      12005 |     4 |     4 |     4
-       5409 |     4 |     4 |     4
-       4964 |     4 |     4 |     4
-      14848 |     3 |     3 |     3
-      14496 |     3 |     3 |     3
-      13473 |     3 |     3 |     3
-      13122 |     3 |     3 |     3
-      12929 |     3 |     3 |     3
-      12645 |     3 |     3 |     3
-      12417 |     3 |     3 |     3
-(10 rows)
-
--- Check that we can revert config and disable count(distinct) approximations
-SET citus.count_distinct_error_rate = 0.0;
-SELECT count(distinct l_orderkey) FROM lineitem;
- count
----------------------------------------------------------------------
-  2985
-(1 row)
-