korlov42 commented on code in PR #1939:
URL: https://github.com/apache/ignite-3/pull/1939#discussion_r1171127364
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modules/sql-engine/src/main/java/org/apache/ignite/internal/sql/engine/type/IgniteTypeFactory.java:
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@@ -72,6 +74,26 @@ public class IgniteTypeFactory extends JavaTypeFactoryImpl {
/** A registry that contains custom data types. **/
private final CustomDataTypes customDataTypes;
+ /** Contains java types internally mapped into appropriate rel types. */
+ private static final Map<Class<?>, Supplier<RelDataType>>
implementedJavaTypes = new IdentityHashMap<>();
Review Comment:
why supplier as value?
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