Jason Altekruse created DRILL-2071:
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Summary: Better documentation for JSON reader all_text_mode option
Key: DRILL-2071
URL: https://issues.apache.org/jira/browse/DRILL-2071
Project: Apache Drill
Issue Type: Bug
Components: Documentation
Reporter: Jason Altekruse
Assignee: Bridget Bevens
Fix For: 0.7.0
Currently Drill will fail by default to read JSON files with changes in schema,
or with several different data types in a list. These files can however be read
if the store.json.all_text_mode option is set to true. This option will read
all data from the JSON files as varchar and from here the data can be casted to
an appropriate type (or filtered out in the case where a cast to numeric is
desired but some of the data in the column is a string or boolean type). This
is only mentioned on the wiki in this page, but does not really describe all of
the use cases of the feature.
https://cwiki.apache.org/confluence/display/DRILL/Analyzing+Yelp+JSON+Data+with+Apache+Drill
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