[Export] Expand function of export stmt #5445
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EmmyMiao87
added
area/backup
|
I will update document later. |
Done |
1. Support where clause in export stmt which only export selected rows.
The syntax is following:
Export table [table name]
where [expr]
To xxx
xxxx
It will filter table rows.
Only rows that meet the where condition can be exported.
2. Support utf8 separator
3. Support export to local
The syntax is following:
Export table [table name]
To (file:///xxx/xx/xx)
If user export rows to local, the broker properties is not requried.
User only need to create a local folder to store data, and fill in the path of the folder starting with file://
Change-Id: Ib7e7ece5accb3e359a67310b0bf006d42cd3f6f5
morningman
reviewed
Mar 9, 2021
| @@ -46,6 +46,8 @@ | |||
| import java.util.List; | |||
| import java.util.Map; | |||
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| import static org.apache.doris.analysis.OutFileClause.LOCAL_FILE_PREFIX; | |||
There was a problem hiding this comment.
Don't using static import
| @@ -89,6 +99,8 @@ | |||
| import java.util.UUID; | |||
| import java.util.concurrent.atomic.AtomicInteger; | |||
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| import static org.apache.doris.analysis.OutFileClause.LOCAL_FILE_PREFIX; | |||
EmmyMiao87
added a commit
to EmmyMiao87/incubator-doris
that referenced
this pull request
Apr 21, 2021
1. Support where clause in export stmt which only export selected rows.
The syntax is following:
Export table [table name]
where [expr]
To xxx
xxxx
It will filter table rows.
Only rows that meet the where condition can be exported.
2. Support utf8 separator
3. Support export to local
The syntax is following:
Export table [table name]
To (file:///xxx/xx/xx)
If user export rows to local, the broker properties is not requried.
User only need to create a local folder to store data, and fill in the path of the folder starting with file://
Change-Id: Ib7e7ece5accb3e359a67310b0bf006d42cd3f6f5
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Proposed changes
The syntax is following:
Export table [table name]
where [expr]
To xxx
xxxx
It will filter table rows.
Only rows that meet the where condition can be exported.
Support utf8 separator
Support export to local
The syntax is following:
Export table [table name]
To (file:///xxx/xx/xx)
If user export rows to local, the broker properties is not requried.
User only need to create a local folder to store data, and fill in the path of the folder starting with file://
Change-Id: Ib7e7ece5accb3e359a67310b0bf006d42cd3f6f5
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