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author | udovichenko-r <udovichenko-r@yandex-team.com> | 2024-11-19 14:58:38 +0300 |
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committer | udovichenko-r <udovichenko-r@yandex-team.com> | 2024-11-19 15:16:27 +0300 |
commit | 24521403b1c44303e043ba540c09b1fe991c7474 (patch) | |
tree | 341d1e7206bc7c143d04d2d96f05b6dc0655606d /yql/essentials/tests/sql/suites/udf/udaf_distinct.sql | |
parent | 72b3cd51dc3fb9d16975d353ea82fd85701393cc (diff) | |
download | ydb-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.sql | 53 |
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 +); |