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https://issues.apache.org/jira/browse/DRILL-1060?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao Meng updated DRILL-1060:
-----------------------------
Attachment: Time_Table.csv
Attached test file.
The test query is:
{code}
select * from dfs.`/root/InternalTest/Time_Table.csv`
{code}
And Drill Physical plan indeed has complex to json operator:
{code}
Drill Physical :
00-00 Screen: rowcount = 1.0, cumulative cost = {1.1 rows, 1.1 cpu, 0.0 io,
0.0 network}, id = 48
00-01 ComplexToJson: rowcount = 1.0, cumulative cost = {1.0 rows, 1.0
cpu, 0.0 io, 0.0 network}, id = 47
00-02 Scan(groupscan=[EasyGroupScan
[selectionRoot=/root/InternalTest/Time_Table.csv, columns = null]]): rowcount =
1.0, cumulative cost = {0.0 rows, 0.0 cpu, 0.0 io, 0.0 network}, id = 46
{code}
> Support ComplexToJson for Array Data Type
> -----------------------------------------
>
> Key: DRILL-1060
> URL: https://issues.apache.org/jira/browse/DRILL-1060
> Project: Apache Drill
> Issue Type: Bug
> Components: Client - C++
> Reporter: Xiao Meng
> Assignee: Aditya Kishore
> Attachments: Time_Table.csv
>
>
> When queries csv files from C++ client, the drillbit returns array (REPEATED
> VARCHAR if all elements are VARCHAR) instead of json.
> When support_complex_types is false, it should return a json string (REQUIRED
> VARCHAR).
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