ClickHouse/tests/queries/0_stateless/01297_alter_distributed.sql
2021-09-12 17:15:28 +03:00

31 lines
1.5 KiB
SQL

-- Tags: distributed
drop table if exists merge_distributed;
drop table if exists merge_distributed1;
create table merge_distributed1 ( CounterID UInt32, StartDate Date, Sign Int8, VisitID UInt64, UserID UInt64, StartTime DateTime, ClickLogID UInt64) ENGINE = CollapsingMergeTree(StartDate, intHash32(UserID), tuple(CounterID, StartDate, intHash32(UserID), VisitID, ClickLogID), 8192, Sign);
insert into merge_distributed1 values (1, '2013-09-19', 1, 0, 2, '2013-09-19 12:43:06', 3);
create table merge_distributed ( CounterID UInt32, StartDate Date, Sign Int8, VisitID UInt64, UserID UInt64, StartTime DateTime, ClickLogID UInt64) ENGINE = Distributed(test_shard_localhost, currentDatabase(), merge_distributed1);
alter table merge_distributed1 add column dummy String after CounterID;
alter table merge_distributed add column dummy String after CounterID;
describe table merge_distributed;
show create table merge_distributed;
insert into merge_distributed1 values (1, 'Hello, Alter Table!','2013-09-19', 1, 0, 2, '2013-09-19 12:43:06', 3);
select CounterID, dummy from merge_distributed where dummy <> '' limit 10;
alter table merge_distributed drop column dummy;
describe table merge_distributed;
show create table merge_distributed;
--error: should fall, because there is no `dummy1` column
alter table merge_distributed add column dummy1 String after CounterID;
select CounterID, dummy1 from merge_distributed where dummy1 <> '' limit 10; -- { serverError 47 }
drop table merge_distributed;
drop table merge_distributed1;