mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-03 21:12:28 +00:00
85 lines
515 B
Plaintext
85 lines
515 B
Plaintext
-- no modifiers
|
|
A 2
|
|
B 3
|
|
C \N
|
|
D 1
|
|
1 D
|
|
2 A
|
|
3 B
|
|
\N C
|
|
A 2
|
|
B 3
|
|
C \N
|
|
D 1
|
|
1 D
|
|
2 A
|
|
3 B
|
|
\N C
|
|
-- with ASC/DESC modifiers
|
|
A 2
|
|
B 3
|
|
C \N
|
|
D 1
|
|
D 1
|
|
C \N
|
|
B 3
|
|
A 2
|
|
A 2
|
|
B 3
|
|
C \N
|
|
D 1
|
|
D 1
|
|
C \N
|
|
B 3
|
|
A 2
|
|
-- with NULLS FIRST/LAST modifiers
|
|
\N C
|
|
1 D
|
|
2 A
|
|
3 B
|
|
1 D
|
|
2 A
|
|
3 B
|
|
\N C
|
|
\N C
|
|
1 D
|
|
2 A
|
|
3 B
|
|
1 D
|
|
2 A
|
|
3 B
|
|
\N C
|
|
-- what happens if some column "all" already exists?
|
|
B 3 10
|
|
D 1 20
|
|
A 2 30
|
|
C \N 40
|
|
B 3 10
|
|
D 1 20
|
|
A 2 30
|
|
C \N 40
|
|
D 1
|
|
A 2
|
|
B 3
|
|
C \N
|
|
D 1
|
|
A 2
|
|
B 3
|
|
C \N
|
|
A 2
|
|
B 3
|
|
D 1
|
|
\N
|
|
A 2
|
|
B 3
|
|
D 1
|
|
\N
|
|
B 3 10
|
|
D 1 20
|
|
A 2 30
|
|
C \N 40
|
|
B 3 10
|
|
D 1 20
|
|
A 2 30
|
|
C \N 40
|