Dániel Gábor Vankó created IMPALA-13859:
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Summary: Add decimal to Kudu's supported primary key types
Key: IMPALA-13859
URL: https://issues.apache.org/jira/browse/IMPALA-13859
Project: IMPALA
Issue Type: Bug
Reporter: Dániel Gábor Vankó
Assignee: Dániel Gábor Vankó
Currently in our KuduUtil class [isSupportedKeyType(type)
function|https://github.com/apache/impala/blob/8093c3fa6b44f7f6ec699d2dd47581401f75f363/fe/src/main/java/org/apache/impala/util/KuduUtil.java#L392-L395]
returns false if its argument is decimal type. However, Apache Kudu only
restricts double, float and bool columns to be primary keys:
[https://kudu.apache.org/releases/1.17.0/docs/known_issues.html#_primary_keys]
{quote}Columns with {{{}DOUBLE{}}}, {{{}FLOAT{}}}, or {{BOOL}} types are not
allowed as part of a primary key definition.
{quote}
([actually that's the case even in Kudu
1.0.0|https://kudu.apache.org/releases/1.0.0/docs/release_notes.html#_schema_and_usage_limitations])
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