XiaoHongbo-Hope commented on code in PR #7786:
URL: https://github.com/apache/paimon/pull/7786#discussion_r3207785604
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paimon-flink/paimon-flink-common/src/main/java/org/apache/paimon/flink/function/BlobViewFunction.java:
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@@ -18,18 +18,157 @@
package org.apache.paimon.flink.function;
+import org.apache.paimon.catalog.Catalog;
+import org.apache.paimon.catalog.CatalogContext;
+import org.apache.paimon.catalog.CatalogFactory;
import org.apache.paimon.catalog.Identifier;
import org.apache.paimon.data.BlobViewStruct;
+import org.apache.paimon.flink.FlinkFileIOLoader;
+import org.apache.paimon.options.Options;
+import org.apache.paimon.table.Table;
+import org.apache.flink.table.functions.FunctionContext;
import org.apache.flink.table.functions.ScalarFunction;
+import javax.annotation.Nullable;
+
+import java.util.HashMap;
+import java.util.Map;
+
/** Flink scalar function that constructs a serialized {@link BlobViewStruct}.
*/
-public class BlobViewFunction extends ScalarFunction {
+public class BlobViewFunction extends ScalarFunction implements
CatalogAwareFunction {
+
+ @Nullable private String catalogName;
+ @Nullable private Options catalogOptions;
+
+ private transient Catalog catalog;
+ private transient Map<String, Map<String, BlobViewField>>
blobViewFieldCache;
+
+ @Override
+ public void setCatalogContext(
+ String catalogName, String defaultDatabase, Options
catalogOptions) {
+ this.catalogName = catalogName;
+ this.catalogOptions = new Options(catalogOptions.toMap());
+ this.catalog = null;
+ this.blobViewFieldCache = null;
+ }
+
+ @Override
+ public void open(FunctionContext context) {
+ openCatalog(context.getUserCodeClassLoader());
Review Comment:
This will fail if blob view function without catalog context?
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