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体验新版 GitCode,发现更多精彩内容 >>
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f1d21189
编写于
9月 22, 2018
作者:
L
luc1ph3r
浏览文件
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电子邮件补丁
差异文件
Parquet data format: refactoring
上级
cf42b10c
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
14 addition
and
7 deletion
+14
-7
dbms/src/DataStreams/ParquetBlockInputStream.cpp
dbms/src/DataStreams/ParquetBlockInputStream.cpp
+14
-7
未找到文件。
dbms/src/DataStreams/ParquetBlockInputStream.cpp
浏览文件 @
f1d21189
...
...
@@ -248,7 +248,11 @@ Block ParquetBlockInputStream::readImpl()
if
(
arrow_type_to_internal_type
.
find
(
arrow_type
)
==
arrow_type_to_internal_type
.
end
())
{
throw
Exception
(
"Unsupported type "
+
arrow_column
->
type
()
->
name
()
+
" of a column "
+
arrow_column
->
name
()
/*, ErrorCodes::TODO*/
);
throw
Exception
(
"The type
\"
"
+
arrow_column
->
type
()
->
name
()
+
"
\"
of an input column
\"
"
+
arrow_column
->
name
()
+
"
\"
"
" is not supported for conversion from a Parquet data format"
/*, ErrorCodes::TODO*/
);
}
// TODO: check if a column is const?
...
...
@@ -263,9 +267,12 @@ Block ParquetBlockInputStream::readImpl()
const
DataTypePtr
internal_type
=
target_column_is_nullable
?
makeNullable
(
internal_nested_type
)
:
internal_nested_type
;
const
std
::
string
internal_nested_type_name
=
internal_nested_type
->
getName
();
const
DataTypePtr
column_nested_type
=
header_column
.
type
->
isNullable
()
?
static_cast
<
const
DataTypeNullable
*>
(
header_column
.
type
.
get
())
->
getNestedType
()
:
header_column
.
type
;
const
DataTypePtr
column_nested_type
=
header_column
.
type
->
isNullable
()
?
static_cast
<
const
DataTypeNullable
*>
(
header_column
.
type
.
get
())
->
getNestedType
()
:
header_column
.
type
;
const
DataTypePtr
column_type
=
header_column
.
type
;
const
std
::
string
column_nested_type_name
=
column_nested_type
->
getName
();
...
...
@@ -273,8 +280,8 @@ Block ParquetBlockInputStream::readImpl()
if
(
internal_nested_type_name
!=
column_nested_type_name
)
{
throw
Exception
(
"Input data type
"
+
internal_nested_type_name
+
" for column
\"
"
+
header_column
.
name
+
"
\"
"
"
is not compatible with a column type "
+
column_nested_type_name
/*, ErrorCodes::TODO*/
"Input data type
\"
"
+
internal_nested_type_name
+
"
\"
for a column
\"
"
+
header_column
.
name
+
"
\"
"
"
is not compatible with a column type
\"
"
+
column_nested_type_name
+
"
\"
"
/*, ErrorCodes::TODO*/
);
}
...
...
@@ -307,7 +314,7 @@ Block ParquetBlockInputStream::readImpl()
// TODO: read JSON as a string?
// TODO: read UUID as a string?
default:
throw
Exception
(
"Unsupported parquet type
"
+
arrow_column
->
type
()
->
name
()
/*, ErrorCodes::TODO*/
);
throw
Exception
(
"Unsupported parquet type
\"
"
+
arrow_column
->
type
()
->
name
()
+
"
\"
"
/*, ErrorCodes::TODO*/
);
}
if
(
column
.
type
->
isNullable
())
...
...
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