mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-10-22 16:30:49 +00:00
70 lines
2.8 KiB
SQL
70 lines
2.8 KiB
SQL
SET allow_experimental_data_skipping_indices=1;
|
|
|
|
drop table if exists nullable_set_index;
|
|
create table nullable_set_index (a UInt64, b Nullable(String), INDEX b_index b TYPE set(0) GRANULARITY 8192) engine = MergeTree order by a;
|
|
insert into nullable_set_index values (1, 'a');
|
|
insert into nullable_set_index values (2, 'b');
|
|
select * from nullable_set_index where b = 'a';
|
|
select '-';
|
|
select * from nullable_set_index where b = 'b';
|
|
select '-';
|
|
select * from nullable_set_index where b = 'c';
|
|
select '--';
|
|
|
|
drop table if exists nullable_set_index;
|
|
create table nullable_set_index (a UInt64, b Nullable(String), INDEX b_index b TYPE set(1) GRANULARITY 8192) engine = MergeTree order by a;
|
|
insert into nullable_set_index values (1, 'a');
|
|
insert into nullable_set_index values (2, 'b');
|
|
select * from nullable_set_index where b = 'a';
|
|
select '-';
|
|
select * from nullable_set_index where b = 'b';
|
|
select '-';
|
|
select * from nullable_set_index where b = 'c';
|
|
select '--';
|
|
|
|
drop table if exists nullable_set_index;
|
|
create table nullable_set_index (a UInt64, b Nullable(String), INDEX b_index b TYPE set(0) GRANULARITY 8192) engine = MergeTree order by a;
|
|
insert into nullable_set_index values (1, 'a'), (2, 'b');
|
|
select * from nullable_set_index where b = 'a';
|
|
select '-';
|
|
select * from nullable_set_index where b = 'b';
|
|
select '-';
|
|
select * from nullable_set_index where b = 'c';
|
|
select '----';
|
|
|
|
|
|
drop table if exists nullable_set_index;
|
|
create table nullable_set_index (a UInt64, b LowCardinality(Nullable(String)), INDEX b_index b TYPE set(0) GRANULARITY 8192) engine = MergeTree order by a;
|
|
insert into nullable_set_index values (1, 'a');
|
|
insert into nullable_set_index values (2, 'b');
|
|
select * from nullable_set_index where b = 'a';
|
|
select '-';
|
|
select * from nullable_set_index where b = 'b';
|
|
select '-';
|
|
select * from nullable_set_index where b = 'c';
|
|
select '--';
|
|
|
|
drop table if exists nullable_set_index;
|
|
create table nullable_set_index (a UInt64, b LowCardinality(Nullable(String)), INDEX b_index b TYPE set(1) GRANULARITY 8192) engine = MergeTree order by a;
|
|
insert into nullable_set_index values (1, 'a');
|
|
insert into nullable_set_index values (2, 'b');
|
|
select * from nullable_set_index where b = 'a';
|
|
select '-';
|
|
select * from nullable_set_index where b = 'b';
|
|
select '-';
|
|
select * from nullable_set_index where b = 'c';
|
|
select '--';
|
|
|
|
drop table if exists nullable_set_index;
|
|
create table nullable_set_index (a UInt64, b LowCardinality(Nullable(String)), INDEX b_index b TYPE set(0) GRANULARITY 8192) engine = MergeTree order by a;
|
|
insert into nullable_set_index values (1, 'a'), (2, 'b');
|
|
select * from nullable_set_index where b = 'a';
|
|
select '-';
|
|
select * from nullable_set_index where b = 'b';
|
|
select '-';
|
|
select * from nullable_set_index where b = 'c';
|
|
select '----';
|
|
|
|
drop table if exists nullable_set_index;
|
|
|