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Joris Gillis commented on DRILL-3806: ------------------------------------- I am experiencing the same issue. Any progress in the meantime? > add metadata for untyped null and simple type promotion > ------------------------------------------------------- > > Key: DRILL-3806 > URL: https://issues.apache.org/jira/browse/DRILL-3806 > Project: Apache Drill > Issue Type: Bug > Components: Execution - Data Types > Reporter: Julien Le Dem > Fix For: Future > > > Currently when a field has literal null values in JSON the type will be > assigned as BIGINT by default for lack of better type. > ``` > { > "a": null > } > ``` > if later on a is assigned with a string value the query will fail with a > schema change error, > The idea is to capture the notion of "untyped null" and implement simple type > promotion from untyped null to the actual type. -- This message was sent by Atlassian JIRA (v6.3.4#6332)