aboutsummaryrefslogtreecommitdiffstats
path: root/yql/essentials/tests/sql/suites/udf/udaf_distinct.sql
diff options
context:
space:
mode:
authorudovichenko-r <udovichenko-r@yandex-team.com>2024-11-19 14:58:38 +0300
committerudovichenko-r <udovichenko-r@yandex-team.com>2024-11-19 15:16:27 +0300
commit24521403b1c44303e043ba540c09b1fe991c7474 (patch)
tree341d1e7206bc7c143d04d2d96f05b6dc0655606d /yql/essentials/tests/sql/suites/udf/udaf_distinct.sql
parent72b3cd51dc3fb9d16975d353ea82fd85701393cc (diff)
downloadydb-24521403b1c44303e043ba540c09b1fe991c7474.tar.gz
YQL-19206 Move contrib/ydb/library/yql/tests/sql/suites -> yql/essentials/tests/sql/suites
commit_hash:d0ef1f92b09c94db7c2408f946d2a4c62b603f00
Diffstat (limited to 'yql/essentials/tests/sql/suites/udf/udaf_distinct.sql')
-rw-r--r--yql/essentials/tests/sql/suites/udf/udaf_distinct.sql53
1 files changed, 53 insertions, 0 deletions
diff --git a/yql/essentials/tests/sql/suites/udf/udaf_distinct.sql b/yql/essentials/tests/sql/suites/udf/udaf_distinct.sql
new file mode 100644
index 0000000000..2bde48ca55
--- /dev/null
+++ b/yql/essentials/tests/sql/suites/udf/udaf_distinct.sql
@@ -0,0 +1,53 @@
+/* postgres can not */
+/* syntax version 1 */
+$script = @@
+import heapq
+import json
+
+N_SMALLEST = 3
+
+def create(item):
+ return [item]
+
+def add(state, item):
+ heapq.heappush(state, item)
+ return heapq.nsmallest(N_SMALLEST, state)
+
+def merge(state_a, state_b):
+ merged = heapq.merge(state_a, state_b)
+ return heapq.nsmallest(N_SMALLEST, merged)
+
+def get_result(state):
+ result = heapq.nsmallest(N_SMALLEST, state)
+ return '%d smallest items: %s' % (
+ N_SMALLEST,
+ ', '.join(map(str, result))
+ )
+
+def serialize(state):
+ return json.dumps(state)
+
+def deserialize(serialized):
+ return json.loads(serialized)
+@@;
+
+$create = Python3::create(Callable<(Int64)->Resource<Python3>>, $script);
+$add = Python3::add(Callable<(Resource<Python3>,Int64)->Resource<Python3>>, $script);
+$merge = Python3::merge(Callable<(Resource<Python3>,Resource<Python3>)->Resource<Python3>>, $script);
+$get_result = Python3::get_result(Callable<(Resource<Python3>)->String>, $script);
+$serialize = Python3::serialize(Callable<(Resource<Python3>)->String>, $script);
+$deserialize = Python3::deserialize(Callable<(String)->Resource<Python3>>, $script);
+
+SELECT UDAF(
+ DISTINCT item,
+ $create,
+ $add,
+ $merge,
+ $get_result,
+ $serialize,
+ $deserialize
+) FROM (
+ SELECT
+ CAST(LENGTH(value) AS Int64) AS item
+ FROM plato.Input
+);