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mv_dependencies: cascaded integration tests

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Ilya Golshtein 2024-11-19 12:23:38 +03:00
parent 1bbfe5340a
commit 0a2b97c9c6
1 changed files with 49 additions and 0 deletions
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49
tests/integration/test_async_load_databases/test.py
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@ -264,3 +264,52 @@ def test_materialzed_views(started_cluster):
query("drop table test_mv.a") query("drop table test_mv.a")
query("drop table test_mv.z") query("drop table test_mv.z")
query("drop database test_mv") query("drop database test_mv")
def test_materialzed_views_cascaded(started_cluster):
query = node1.query
query("create database test_mv")
query("create table test_mv.t (Id UInt64) engine=MergeTree order by Id")
query("create table test_mv.a (Id UInt64) engine=MergeTree order by Id")
query("create table test_mv.z (Id UInt64) engine=MergeTree order by Id")
query("create materialized view t_to_a to test_mv.a as select Id from test_mv.t")
query("create materialized view a_to_z to test_mv.z as select Id from test_mv.a")
node1.restart_clickhouse()
query("insert into test_mv.t values(42)")
assert query("select * from test_mv.a Format CSV") == "42\n"
assert query("select * from test_mv.z Format CSV") == "42\n"
query("drop view t_to_a")
query("drop view a_to_z")
query("drop table test_mv.t")
query("drop table test_mv.a")
query("drop table test_mv.z")
query("drop database test_mv")
def test_materialzed_views_cascaded_multiple(started_cluster):
query = node1.query
query("create database test_mv")
query("create table test_mv.t (Id UInt64) engine=MergeTree order by Id")
query("create table test_mv.a (Id UInt64) engine=MergeTree order by Id")
query("create table test_mv.x (IdText String) engine=MergeTree order by IdText")
query("create table test_mv.z (Id UInt64, IdTextLength UInt64) engine=MergeTree order by Id")
query("create materialized view t_to_a to test_mv.a as select Id from test_mv.t")
query("create materialized view t_to_x to test_mv.x as select toString(Id) as IdText from test_mv.t")
query("create materialized view ax_to_z to test_mv.z as select Id, (select max(length(IdText)) from test_mv.x) as IdTextLength from test_mv.a")
node1.restart_clickhouse()
query("insert into test_mv.t values(42)")
assert query("select * from test_mv.a Format CSV") == "42\n"
assert query("select * from test_mv.x Format CSV") == "\"42\"\n"
assert query("select * from test_mv.z Format CSV") == "42,2\n"
query("drop view t_to_a")
query("drop view t_to_x")
query("drop view ax_to_z")
query("drop table test_mv.t")
query("drop table test_mv.a")
query("drop table test_mv.x")
query("drop table test_mv.z")
query("drop database test_mv")