mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-22 15:42:02 +00:00
32 lines
1.6 KiB
SQL
32 lines
1.6 KiB
SQL
-- Tags: distributed
|
|
|
|
drop table if exists merge_distributed;
|
|
drop table if exists merge_distributed1;
|
|
|
|
set allow_deprecated_syntax_for_merge_tree=1;
|
|
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 UNKNOWN_IDENTIFIER }
|
|
|
|
drop table merge_distributed;
|
|
drop table merge_distributed1;
|