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体验新版 GitCode,发现更多精彩内容 >>
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593c7565
编写于
12月 29, 2019
作者:
A
alexey-milovidov
提交者:
GitHub
12月 29, 2019
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差异文件
Merge pull request #8450 from ClickHouse/kononencheg-kononencheg/runningAccumulate
Merging #8326
上级
b9c7ecfa
f4f2ed7a
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
78 addition
and
7 deletion
+78
-7
dbms/src/Functions/runningAccumulate.cpp
dbms/src/Functions/runningAccumulate.cpp
+37
-7
dbms/tests/queries/0_stateless/01012_reset_running_accumulate.reference
...ries/0_stateless/01012_reset_running_accumulate.reference
+30
-0
dbms/tests/queries/0_stateless/01012_reset_running_accumulate.sql
...ts/queries/0_stateless/01012_reset_running_accumulate.sql
+11
-0
未找到文件。
dbms/src/Functions/runningAccumulate.cpp
浏览文件 @
593c7565
...
...
@@ -15,6 +15,7 @@ namespace ErrorCodes
{
extern
const
int
ILLEGAL_COLUMN
;
extern
const
int
ILLEGAL_TYPE_OF_ARGUMENT
;
extern
const
int
NUMBER_OF_ARGUMENTS_DOESNT_MATCH
;
}
...
...
@@ -46,10 +47,9 @@ public:
return
true
;
}
size_t
getNumberOfArguments
()
const
override
{
return
1
;
}
bool
isVariadic
()
const
override
{
return
true
;
}
size_t
getNumberOfArguments
()
const
override
{
return
0
;
}
bool
isDeterministic
()
const
override
{
return
false
;
}
...
...
@@ -60,6 +60,10 @@ public:
DataTypePtr
getReturnTypeImpl
(
const
DataTypes
&
arguments
)
const
override
{
if
(
arguments
.
size
()
<
1
||
arguments
.
size
()
>
2
)
throw
Exception
(
"Incorrect number of arguments of function "
+
getName
()
+
". Must be 1 or 2."
,
ErrorCodes
::
NUMBER_OF_ARGUMENTS_DOESNT_MATCH
);
const
DataTypeAggregateFunction
*
type
=
checkAndGetDataType
<
DataTypeAggregateFunction
>
(
arguments
[
0
].
get
());
if
(
!
type
)
throw
Exception
(
"Argument for function "
+
getName
()
+
" must have type AggregateFunction - state of aggregate function."
,
...
...
@@ -72,19 +76,24 @@ public:
{
const
ColumnAggregateFunction
*
column_with_states
=
typeid_cast
<
const
ColumnAggregateFunction
*>
(
&*
block
.
getByPosition
(
arguments
.
at
(
0
)).
column
);
if
(
!
column_with_states
)
throw
Exception
(
"Illegal column "
+
block
.
getByPosition
(
arguments
.
at
(
0
)).
column
->
getName
()
+
" of first argument of function "
+
getName
(),
ErrorCodes
::
ILLEGAL_COLUMN
);
ColumnPtr
column_with_groups
;
if
(
arguments
.
size
()
==
2
)
column_with_groups
=
block
.
getByPosition
(
arguments
[
1
]).
column
;
AggregateFunctionPtr
aggregate_function_ptr
=
column_with_states
->
getAggregateFunction
();
const
IAggregateFunction
&
agg_func
=
*
aggregate_function_ptr
;
AlignedBuffer
place
(
agg_func
.
sizeOfData
(),
agg_func
.
alignOfData
());
agg_func
.
create
(
place
.
data
());
SCOPE_EXIT
(
agg_func
.
destroy
(
place
.
data
()));
/// Will pass empty arena if agg_func does not allocate memory in arena
std
::
unique_ptr
<
Arena
>
arena
=
agg_func
.
allocatesMemoryInArena
()
?
std
::
make_unique
<
Arena
>
()
:
nullptr
;
auto
result_column_ptr
=
agg_func
.
getReturnType
()
->
createColumn
();
...
...
@@ -92,11 +101,32 @@ public:
result_column
.
reserve
(
column_with_states
->
size
());
const
auto
&
states
=
column_with_states
->
getData
();
bool
state_created
=
false
;
SCOPE_EXIT
({
if
(
state_created
)
agg_func
.
destroy
(
place
.
data
());
});
size_t
row_number
=
0
;
for
(
const
auto
&
state_to_add
:
states
)
{
/// Will pass empty arena if agg_func does not allocate memory in arena
if
(
row_number
==
0
||
(
column_with_groups
&&
column_with_groups
->
compareAt
(
row_number
,
row_number
-
1
,
*
column_with_groups
,
1
)
!=
0
))
{
if
(
state_created
)
{
agg_func
.
destroy
(
place
.
data
());
state_created
=
false
;
}
agg_func
.
create
(
place
.
data
());
state_created
=
true
;
}
agg_func
.
merge
(
place
.
data
(),
state_to_add
,
arena
.
get
());
agg_func
.
insertResultInto
(
place
.
data
(),
result_column
);
++
row_number
;
}
block
.
getByPosition
(
result
).
column
=
std
::
move
(
result_column_ptr
);
...
...
dbms/tests/queries/0_stateless/01012_reset_running_accumulate.reference
0 → 100644
浏览文件 @
593c7565
0 0 0
0 6 6
0 12 18
0 18 36
0 24 60
1 1 1
1 7 8
1 13 21
1 19 40
1 25 65
2 2 2
2 8 10
2 14 24
2 20 44
2 26 70
3 3 3
3 9 12
3 15 27
3 21 48
3 27 75
4 4 4
4 10 14
4 16 30
4 22 52
4 28 80
5 5 5
5 11 16
5 17 33
5 23 56
5 29 85
dbms/tests/queries/0_stateless/01012_reset_running_accumulate.sql
0 → 100644
浏览文件 @
593c7565
SELECT
grouping
,
item
,
runningAccumulate
(
state
,
grouping
)
FROM
(
SELECT
number
%
6
AS
grouping
,
number
AS
item
,
sumState
(
number
)
AS
state
FROM
(
SELECT
number
FROM
system
.
numbers
LIMIT
30
)
GROUP
BY
grouping
,
item
ORDER
BY
grouping
,
item
);
\ No newline at end of file
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