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https://issues.apache.org/jira/browse/DRILL-7951?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17370236#comment-17370236
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ASF GitHub Bot commented on DRILL-7951:
---------------------------------------
cgivre commented on a change in pull request #2256:
URL: https://github.com/apache/drill/pull/2256#discussion_r659337095
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/store/easy/json/loader/JsonLoaderImpl.java
##########
@@ -276,6 +285,10 @@ public boolean readBatch() {
RowSetLoader rowWriter = rsLoader.writer();
while (rowWriter.start()) {
if (parser.next()) {
+ // Add implicit fields
+ if (implicitFields != null) {
Review comment:
In the next line it calls the `writeImplicitColumns()` method which has
a `foreach` loop. If the implicit columns are empty (not null) it will skip
the loop and return.
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> Add Response Metadata Fields to HTTP Storage Plugin
> ---------------------------------------------------
>
> Key: DRILL-7951
> URL: https://issues.apache.org/jira/browse/DRILL-7951
> Project: Apache Drill
> Issue Type: Improvement
> Components: Storage - Other
> Affects Versions: 1.19.0
> Reporter: Charles Givre
> Assignee: Charles Givre
> Priority: Major
> Fix For: Future
>
>
> In many http calls, the response code can contain meaningful information,
> however these fields are not available unless the call results in an error.
> This PR adds four implicit metadata fields to the HTTP storage plugin which
> are:
> * _response_code: The HTTP response code. This field is returned as an INT.
>
> * _resposne_message: The response message.
> * _response_protocol: The response protocol.
> * _response_url: The actual URL that is sent to the API.
> As these are implicit fields, they will not appear in star queries.
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