Feng Zhu created CALCITE-3627: --------------------------------- Summary: Incorrect null semantic for ROW function Key: CALCITE-3627 URL: https://issues.apache.org/jira/browse/CALCITE-3627 Project: Calcite Issue Type: Bug Components: core Reporter: Feng Zhu Assignee: Feng Zhu
In CALCITE-2464, an in-depth discussion on nullability of structured type has been conducted. According to SQL standards, a record's value (with structure type) is considered null if and only if all of its fields are null. Based on that, the *ROW* function's return type can be nullable. Moreover, current implementor for ROW function's _*NullPolicy*_ (_NullPolicy.ANY_) contradicts its runtime behavior. {code:java} Query: select ROW(1, cast(null as int)) Result: {1, null}{code} However, according to the NullPolicy, the result should be null. -- This message was sent by Atlassian Jira (v8.3.4#803005)