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https://issues.apache.org/jira/browse/DRILL-2018?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Abhishek Girish closed DRILL-2018.
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Was resolved as duplicate. Closing.
> Error message must be updated when Drill fails to handle JSON files with
> mutating schemas within fields.
> --------------------------------------------------------------------------------------------------------
>
> Key: DRILL-2018
> URL: https://issues.apache.org/jira/browse/DRILL-2018
> Project: Apache Drill
> Issue Type: Bug
> Components: Storage - JSON
> Reporter: Abhishek Girish
> Assignee: Jacques Nadeau
> Priority: Minor
>
> Currently Drill fails to read JSON files with the following structure:
> Below is the snippet causing the issue:
> {
> "data": {
> "games": {
> "game": [
> {
> "home_runs": {
> "player": {
> "first": "Jason"
> }
> }
> },
> {
> "home_runs": {
> "player": [
> {
> "first": "Kosuke"
> },
> {
> "first": "Alfonso"
> },
> {
> "first": "Jeff"
> },
> {
> "first": "Brandon"
> }
> ]
> }
> }
> ]
> }
> }
> }
> > select * from `snippet.json` limit 1;
> Query failed: Query stopped., You tried to write a Map type when you are
> using a ValueWriter of type SingleMapWriter. [
> 358d955b-d834-476c-b649-95059c264030 on abhi5.qa.lab:31010 ]
> Error: exception while executing query: Failure while executing query.
> (state=,code=0)
> The error message must be updated to indicate clearly that this feature is
> not currently not supported. It would also be helpful if the fields having
> the issue is also indicated, as it would help narrow down the issue.
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