Reo-LEI commented on a change in pull request #2898:
URL: https://github.com/apache/iceberg/pull/2898#discussion_r719111689
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File path: flink/src/main/java/org/apache/iceberg/flink/sink/FlinkSink.java
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@@ -283,15 +284,27 @@ public Builder uidPrefix(String newPrefix) {
}
}
+ // Find out the equality field id list based on the user-provided
equality field column names.
+ List<Integer> equalityFieldIds = Lists.newArrayList();
+ if (equalityFieldColumns != null && equalityFieldColumns.size() > 0) {
+ for (String column : equalityFieldColumns) {
+ org.apache.iceberg.types.Types.NestedField field =
table.schema().findField(column);
+ Preconditions.checkNotNull(field, "Missing required equality field
column '%s' in table schema %s",
Review comment:
I think this is needed, that is helpful for user to find out the problem.
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