Github user ramkrish86 commented on a diff in the pull request:
https://github.com/apache/flink/pull/3149#discussion_r98487401
--- Diff:
flink-connectors/flink-hbase/src/main/java/org/apache/flink/addons/hbase/HBaseTableSchema.java
---
@@ -0,0 +1,140 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.flink.addons.hbase;
+
+import org.apache.flink.api.common.typeinfo.TypeInformation;
+import org.apache.flink.api.java.typeutils.TypeExtractor;
+import org.apache.flink.util.Preconditions;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.apache.hadoop.hbase.util.Pair;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.sql.Time;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.ArrayList;
+import java.sql.Date;
+
+/**
+ * Helps to specify an HBase Table's schema
+ */
+public class HBaseTableSchema implements Serializable {
+
+ // A Map with key as column family.
+ private final Map<String, List<Pair<String, TypeInformation<?>>>>
familyMap =
--- End diff --
> I think PushProjectIntoBatchTableSourceScanRule is not good enough for
nested data types. but we can project at least family columns now.
So you mean we will project the column families. One thing to remember is
that though we have two families - Eduction and Department. When we retrieve
Department would come first and then Education. So what matters is how we
retrieve the result.
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