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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2022/04/01 09:16:34 UTC

[GitHub] [flink] twalthr commented on a change in pull request #19236: [FLINK-26712][table-planner] Metadata keys should not conflict with physical columns

twalthr commented on a change in pull request #19236:
URL: https://github.com/apache/flink/pull/19236#discussion_r840393194



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File path: flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/connectors/DynamicSourceUtils.java
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@@ -71,6 +71,9 @@
 @Internal
 public final class DynamicSourceUtils {
 
+    // Ensures that physical and metadata columns don't collide.
+    public static final String METADATA_COLUMN_PREFIX = "$metadata$";

Review comment:
       the source and sink stack are completely separate, that's why we also have separate util classes




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