can print now

Author: suxiaogang223

fe/be-java-extensions/iceberg-metadata-scanner/src/main/java/org/apache/doris/iceberg/IcebergSnapshotsJniScanner.java

@@ -90,12 +90,13 @@ public void close() throws IOException {
     @Override
     protected HashMap<String, String> getMetadataSchema() {
         HashMap<String, String> metadataSchema = new HashMap<>();
-        metadataSchema.put("committed_at", "long");
-        metadataSchema.put("snapshot_id", "long");
-        metadataSchema.put("parent_id", "long");
+        // TODO: use decimal
+        metadataSchema.put("committed_at", "bigint");
+        metadataSchema.put("snapshot_id", "bigint");
+        metadataSchema.put("parent_id", "bigint");
         metadataSchema.put("operation", "string");
         metadataSchema.put("manifest_list", "string");
-        metadataSchema.put("summary", "string");
+        metadataSchema.put("summary", "map<string,string>");
         return metadataSchema;
     }
 

fe/fe-core/src/main/java/org/apache/doris/tablefunction/IcebergTableValuedFunction.java

@@ -58,12 +58,12 @@ public class IcebergTableValuedFunction extends MetadataTableValuedFunction {
     private static final ImmutableSet<String> PROPERTIES_SET = ImmutableSet.of(TABLE, QUERY_TYPE);
 
     private static final ImmutableList<Column> SCHEMA_SNAPSHOT = ImmutableList.of(
-            new Column("committed_at", PrimitiveType.DATETIMEV2, false),
+            new Column("committed_at", PrimitiveType.BIGINT, false),
             new Column("snapshot_id", PrimitiveType.BIGINT, false),
             new Column("parent_id", PrimitiveType.BIGINT, false),
             new Column("operation", PrimitiveType.STRING, false),
-            // todo: compress manifest_list string
             new Column("manifest_list", PrimitiveType.STRING, false),
+            // TODO: use map type
             new Column("summary", PrimitiveType.STRING, false));
 
     private static final ImmutableMap<String, Integer> COLUMN_TO_INDEX;
@@ -134,7 +134,6 @@ public TMetaScanRange getMetaScanRange() {
         // set iceberg metadata params
         TIcebergMetadataParams icebergMetadataParams = new TIcebergMetadataParams();
         icebergMetadataParams.setIcebergQueryType(queryType);
-        // TODO: remove this after iceberg metadata cache is ready
         icebergMetadataParams.setCatalog(icebergTableName.getCtl());
         icebergMetadataParams.setDatabase(icebergTableName.getDb());
         icebergMetadataParams.setTable(icebergTableName.getTbl());