[
https://issues.apache.org/jira/browse/DRILL-6847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16693510#comment-16693510
]
ASF GitHub Bot commented on DRILL-6847:
---------------------------------------
cgivre commented on issue #1539: DRILL-6847: Add Query Metadata to RESTful
Interface
URL: https://github.com/apache/drill/pull/1539#issuecomment-440354143
@arina-ielchiieva
Ok, metadata is refomatted.
The query:
```
SELECT CAST( employee_id AS INT) AS employee_id,
CAST( employee_id AS DECIMAL(8,4)) AS employee_id1,
CAST(full_name AS VARCHAR(10)) AS full_name,
first_name,
last_name,
CAST( position_id AS BIGINT) AS position_id,
position_title
FROM cp.`employee.json`
LIMIT 2
```
Results in the following metadata:
```
{
"queryId": "240bc0a2-cb41-320d-17cf-072c912c83a8",
"columns": [
"employee_id",
"employee_id1",
"full_name",
"first_name",
"last_name",
"position_id",
"position_title"
],
"rows": [
{
"full_name": "Sheri Nowm",
"employee_id1": "1.0000",
"employee_id": "1",
"last_name": "Nowmer",
"position_title": "President",
"first_name": "Sheri",
"position_id": "1"
},
{
"full_name": "Derrick Wh",
"employee_id1": "2.0000",
"employee_id": "2",
"last_name": "Whelply",
"position_title": "VP Country Manager",
"first_name": "Derrick",
"position_id": "2"
}
],
"metadata": [
"INT",
"VARDECIMAL(8, 4)",
"VARCHAR(10)",
"VARCHAR",
"VARCHAR",
"BIGINT",
"VARCHAR"
]
}
```
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> Add Query Metadata to RESTful Interface
> ---------------------------------------
>
> Key: DRILL-6847
> URL: https://issues.apache.org/jira/browse/DRILL-6847
> Project: Apache Drill
> Issue Type: Improvement
> Components: Metadata
> Reporter: Charles Givre
> Assignee: Charles Givre
> Priority: Minor
>
> The Drill RESTful interface does not return the structure of the query
> results. This makes integrating Drill with other BI tools difficult because
> they do not know what kind of data to expect.
> This PR adds a new section to the results called Metadata which contains a
> list of the minor types of all the columns returned.
> The query below will now return the following in the RESTful interface:
> {code:sql}
> SELECT CAST( employee_id AS INT) AS employee_id,
> full_name,
> first_name,
> last_name,
> CAST( position_id AS BIGINT) AS position_id,
> position_title
> FROM cp.`employee.json` LIMIT 2
> {code}
> {code}
> {
> "queryId": "2414bf3f-b4f4-d4df-825f-73dfb3a56681",
> "columns": [
> "employee_id",
> "full_name",
> "first_name",
> "last_name",
> "position_id",
> "position_title"
> ],
> "metadata": [
> "INT",
> "VARCHAR",
> "VARCHAR",
> "VARCHAR",
> "BIGINT",
> "VARCHAR"
> ],
> "rows": [
> {
> "full_name": "Sheri Nowmer",
> "employee_id": "1",
> "last_name": "Nowmer",
> "position_title": "President",
> "first_name": "Sheri",
> "position_id": "1"
> },
> {
> "full_name": "Derrick Whelply",
> "employee_id": "2",
> "last_name": "Whelply",
> "position_title": "VP Country Manager",
> "first_name": "Derrick",
> "position_id": "2"
> }
> ]
> }
> {code}
>
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