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体验新版 GitCode,发现更多精彩内容 >>
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51f539d3
编写于
7月 17, 2020
作者:
A
alexey-milovidov
提交者:
GitHub
7月 17, 2020
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差异文件
Merge pull request #12480 from azat/fix-SETTINGS-parse-after-FORMAT
[RFC] Fix SETTINGS parse after FORMAT
上级
9fb40a3f
a5887ff7
变更
7
隐藏空白更改
内联
并排
Showing
7 changed file
with
136 addition
and
0 deletion
+136
-0
src/Parsers/ParserQueryWithOutput.cpp
src/Parsers/ParserQueryWithOutput.cpp
+11
-0
src/Parsers/QueryWithOutputSettingsPushDownVisitor.cpp
src/Parsers/QueryWithOutputSettingsPushDownVisitor.cpp
+56
-0
src/Parsers/QueryWithOutputSettingsPushDownVisitor.h
src/Parsers/QueryWithOutputSettingsPushDownVisitor.h
+39
-0
src/Parsers/ya.make
src/Parsers/ya.make
+1
-0
tests/queries/0_stateless/01401_FORMAT_SETTINGS.reference
tests/queries/0_stateless/01401_FORMAT_SETTINGS.reference
+7
-0
tests/queries/0_stateless/01401_FORMAT_SETTINGS.sh
tests/queries/0_stateless/01401_FORMAT_SETTINGS.sh
+21
-0
tests/queries/0_stateless/arcadia_skip_list.txt
tests/queries/0_stateless/arcadia_skip_list.txt
+1
-0
未找到文件。
src/Parsers/ParserQueryWithOutput.cpp
浏览文件 @
51f539d3
...
...
@@ -14,12 +14,15 @@
#include <Parsers/ParserWatchQuery.h>
#include <Parsers/ParserSetQuery.h>
#include <Parsers/ASTExplainQuery.h>
#include <Parsers/ASTSelectWithUnionQuery.h>
#include <Parsers/ASTSetQuery.h>
#include <Parsers/ParserShowAccessEntitiesQuery.h>
#include <Parsers/ParserShowAccessQuery.h>
#include <Parsers/ParserShowCreateAccessEntityQuery.h>
#include <Parsers/ParserShowGrantsQuery.h>
#include <Parsers/ParserShowPrivilegesQuery.h>
#include <Parsers/ParserExplainQuery.h>
#include <Parsers/QueryWithOutputSettingsPushDownVisitor.h>
namespace
DB
...
...
@@ -107,6 +110,14 @@ bool ParserQueryWithOutput::parseImpl(Pos & pos, ASTPtr & node, Expected & expec
if
(
!
parser_settings
.
parse
(
pos
,
query_with_output
.
settings_ast
,
expected
))
return
false
;
query_with_output
.
children
.
push_back
(
query_with_output
.
settings_ast
);
// SETTINGS after FORMAT is not parsed by the SELECT parser (ParserSelectQuery)
// Pass them manually, to apply in InterpreterSelectQuery::initSettings()
if
(
query
->
as
<
ASTSelectWithUnionQuery
>
())
{
QueryWithOutputSettingsPushDownVisitor
::
Data
data
{
query_with_output
.
settings_ast
};
QueryWithOutputSettingsPushDownVisitor
(
data
).
visit
(
query
);
}
}
node
=
std
::
move
(
query
);
...
...
src/Parsers/QueryWithOutputSettingsPushDownVisitor.cpp
0 → 100644
浏览文件 @
51f539d3
#include <Common/SettingsChanges.h>
#include <Parsers/QueryWithOutputSettingsPushDownVisitor.h>
#include <Parsers/ASTSelectWithUnionQuery.h>
#include <Parsers/ASTSelectQuery.h>
#include <Parsers/ASTSetQuery.h>
#include <Parsers/ASTSubquery.h>
#include <iterator>
#include <algorithm>
namespace
DB
{
bool
QueryWithOutputSettingsPushDownMatcher
::
needChildVisit
(
ASTPtr
&
node
,
const
ASTPtr
&
child
)
{
if
(
node
->
as
<
ASTSelectWithUnionQuery
>
())
return
true
;
if
(
node
->
as
<
ASTSubquery
>
())
return
true
;
if
(
child
->
as
<
ASTSelectQuery
>
())
return
true
;
return
false
;
}
void
QueryWithOutputSettingsPushDownMatcher
::
visit
(
ASTPtr
&
ast
,
Data
&
data
)
{
if
(
auto
*
select_query
=
ast
->
as
<
ASTSelectQuery
>
())
visit
(
*
select_query
,
ast
,
data
);
}
void
QueryWithOutputSettingsPushDownMatcher
::
visit
(
ASTSelectQuery
&
select_query
,
ASTPtr
&
,
Data
&
data
)
{
ASTPtr
select_settings_ast
=
select_query
.
settings
();
if
(
!
select_settings_ast
)
{
select_query
.
setExpression
(
ASTSelectQuery
::
Expression
::
SETTINGS
,
data
.
settings_ast
->
clone
());
return
;
}
SettingsChanges
&
select_settings
=
select_settings_ast
->
as
<
ASTSetQuery
&>
().
changes
;
SettingsChanges
&
settings
=
data
.
settings_ast
->
as
<
ASTSetQuery
&>
().
changes
;
for
(
auto
&
setting
:
settings
)
{
auto
it
=
std
::
find_if
(
select_settings
.
begin
(),
select_settings
.
end
(),
[
&
](
auto
&
select_setting
)
{
return
select_setting
.
name
==
setting
.
name
;
});
if
(
it
==
select_settings
.
end
())
select_settings
.
push_back
(
setting
);
else
it
->
value
=
setting
.
value
;
}
}
}
src/Parsers/QueryWithOutputSettingsPushDownVisitor.h
0 → 100644
浏览文件 @
51f539d3
#pragma once
#include <Parsers/IAST.h>
#include <Interpreters/InDepthNodeVisitor.h>
namespace
DB
{
class
ASTSelectQuery
;
struct
SettingChange
;
using
SettingsChanges
=
std
::
vector
<
SettingChange
>
;
/// Pushdown SETTINGS clause that goes after FORMAT to the SELECT query:
/// (since settings after FORMAT parsed separatelly not in the ParserSelectQuery but in ParserQueryWithOutput)
///
/// SELECT 1 FORMAT Null SETTINGS max_block_size = 1 ->
/// SELECT 1 SETTINGS max_block_size = 1 FORMAT Null SETTINGS max_block_size = 1
///
/// Otherwise settings after FORMAT will not be applied.
class
QueryWithOutputSettingsPushDownMatcher
{
public:
using
Visitor
=
InDepthNodeVisitor
<
QueryWithOutputSettingsPushDownMatcher
,
true
>
;
struct
Data
{
const
ASTPtr
&
settings_ast
;
};
static
bool
needChildVisit
(
ASTPtr
&
node
,
const
ASTPtr
&
child
);
static
void
visit
(
ASTPtr
&
ast
,
Data
&
data
);
private:
static
void
visit
(
ASTSelectQuery
&
,
ASTPtr
&
,
Data
&
);
};
using
QueryWithOutputSettingsPushDownVisitor
=
QueryWithOutputSettingsPushDownMatcher
::
Visitor
;
}
src/Parsers/ya.make
浏览文件 @
51f539d3
...
...
@@ -116,6 +116,7 @@ SRCS(
parseUserName.cpp
queryToString.cpp
TokenIterator.cpp
QueryWithOutputSettingsPushDownVisitor.cpp
)
END()
tests/queries/0_stateless/01401_FORMAT_SETTINGS.reference
0 → 100644
浏览文件 @
51f539d3
1
1
1
1
1
2
2
tests/queries/0_stateless/01401_FORMAT_SETTINGS.sh
0 → 100755
浏览文件 @
51f539d3
#!/usr/bin/env bash
CURDIR
=
$(
cd
"
$(
dirname
"
${
BASH_SOURCE
[0]
}
"
)
"
&&
pwd
)
.
$CURDIR
/../shell_config.sh
set
-o
pipefail
# test via http, since client parses settings by itself additionally
${
CLICKHOUSE_CURL
}
-sS
"
${
CLICKHOUSE_URL
}
"
-d
'SELECT DISTINCT blockSize() FROM numbers(2) SETTINGS max_block_size = 1 FORMAT CSV'
# push down
${
CLICKHOUSE_CURL
}
-sS
"
${
CLICKHOUSE_URL
}
"
-d
'SELECT DISTINCT blockSize() FROM numbers(2) FORMAT CSV SETTINGS max_block_size = 1'
# push down append
${
CLICKHOUSE_CURL
}
-sS
"
${
CLICKHOUSE_URL
}
"
-d
'SELECT DISTINCT blockSize() FROM numbers(2) SETTINGS max_compress_block_size = 1 FORMAT CSV SETTINGS max_block_size = 1'
# overwrite on push down (since these settings goes latest)
${
CLICKHOUSE_CURL
}
-sS
"
${
CLICKHOUSE_URL
}
"
-d
'SELECT DISTINCT blockSize() FROM numbers(2) SETTINGS max_block_size = 2 FORMAT CSV SETTINGS max_block_size = 1'
# on push-down
${
CLICKHOUSE_CURL
}
-sS
"
${
CLICKHOUSE_URL
}
"
-d
'SELECT DISTINCT blockSize() FROM numbers(2) SETTINGS max_block_size = 1 FORMAT CSV'
# no settings
${
CLICKHOUSE_CURL
}
-sS
"
${
CLICKHOUSE_URL
}
"
-d
'SELECT DISTINCT blockSize() FROM numbers(2) FORMAT CSV'
${
CLICKHOUSE_CURL
}
-sS
"
${
CLICKHOUSE_URL
}
"
-d
'SELECT DISTINCT blockSize() FROM numbers(2)'
tests/queries/0_stateless/arcadia_skip_list.txt
浏览文件 @
51f539d3
...
...
@@ -132,3 +132,4 @@
01319_optimize_skip_unused_shards_nesting
01376_GROUP_BY_injective_elimination_dictGet
01391_join_on_dict_crash
01401_FORMAT_SETTINGS
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