robinyqiu commented on a change in pull request #11957:
URL: https://github.com/apache/beam/pull/11957#discussion_r440591940
##########
File path:
sdks/java/extensions/sql/zetasql/src/main/java/org/apache/beam/sdk/extensions/sql/zetasql/ZetaSqlUtils.java
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@@ -196,7 +196,55 @@ private static Value
beamLogicalObjectToZetaSqlValue(Object object, String ident
}
}
- // Value conversion: ZetaSQL => Beam
+ // Type conversion: ZetaSQL => Beam
+ public static FieldType zetaSqlTypeToBeamFieldType(Type type) {
Review comment:
Yes. All ZetaSQL types are nullable. i.e. You can't define a ZetaSQL
type that disallow null values.
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