fcd15edbf9
```
EXPORT TABLE xxx
...
PROPERTIES
(
"label" = "mylabel",
...
);
```
And than user can use label to get the info by SHOW EXPORT stmt:
```
show export from db where label="mylabel";
```
For compatibility, if not specified, a random label will be used. And for history jobs, the label will be "export_job_id";
Not like LOAD stmt, here we specify label in `properties` because this will not cause grammatical conflicts,
and there is no need to modify the meta version of the metadata.
68 lines
2.1 KiB
Markdown
68 lines
2.1 KiB
Markdown
---
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{
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"title": "SHOW EXPORT",
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"language": "en"
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}
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---
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<!--
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Licensed to the Apache Software Foundation (ASF) under one
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or more contributor license agreements. See the NOTICE file
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distributed with this work for additional information
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regarding copyright ownership. The ASF licenses this file
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to you under the Apache License, Version 2.0 (the
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"License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing,
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software distributed under the License is distributed on an
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"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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KIND, either express or implied. See the License for the
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specific language governing permissions and limitations
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under the License.
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-->
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# SHOW EXPORT
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## Description
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This statement is used to show the execution of the specified export task
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Grammar:
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SHOW EXPORT
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[FROM db_name]
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[
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WHERE
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[ID = your_job_id]
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[STATE = ["PENDING"|"EXPORTING"|"FINISHED"|"CANCELLED"]]
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[LABEL = "your_label"]
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]
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[ORDER BY ...]
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[LIMIT limit];
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Explain:
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1) If db_name is not specified, use the current default DB
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2) If STATE is specified, the EXPORT state is matched
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3) Any column combination can be sorted using ORDER BY
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4) If LIMIT is specified, the limit bar matching record is displayed. Otherwise, all of them will be displayed.
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## example
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1. Show all export tasks of default DB
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SHOW EXPORT;
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2. Show the export tasks of the specified db, sorted in descending order by StartTime
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SHOW EXPORT FROM example_db ORDER BY StartTime DESC;
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3. Show the export task of the specified db, state is "exporting" and sorted in descending order by StartTime
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SHOW EXPORT FROM example_db WHERE STATE = "exporting" ORDER BY StartTime DESC;
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4. Show the export task of specifying dB and job_id
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SHOW EXPORT FROM example_db WHERE ID = job_id;
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5. Show the export task of specifying dB and label
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SHOW EXPORT FROM example_db WHERE LABEL = "mylabel";
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## keyword
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SHOW,EXPORT
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