Github user jackylk commented on a diff in the pull request:
https://github.com/apache/incubator-carbondata/pull/722#discussion_r109815736
--- Diff: processing/src/main/java/org/apache/carbondata/processing/newflow/steps/NoSortProcessorStepImpl.java ---
@@ -0,0 +1,123 @@
+/*
+ * 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.carbondata.processing.newflow.steps;
+
+import java.io.IOException;
+import java.math.BigDecimal;
+
+import org.apache.carbondata.core.constants.CarbonCommonConstants;
+import org.apache.carbondata.core.util.DataTypeUtil;
+import org.apache.carbondata.processing.newflow.AbstractDataLoadProcessorStep;
+import org.apache.carbondata.processing.newflow.CarbonDataLoadConfiguration;
+import org.apache.carbondata.processing.newflow.DataField;
+import org.apache.carbondata.processing.newflow.row.CarbonRow;
+import org.apache.carbondata.processing.util.CarbonDataProcessorUtil;
+import org.apache.carbondata.processing.util.NonDictionaryUtil;
+
+/**
+ * if the table doesn't have sort_columns, just convert row format.
+ */
+public class NoSortProcessorStepImpl extends AbstractDataLoadProcessorStep {
+
+ private int dimensionCount;
+
+ private int dimensionWithComplexCount;
+
+ private int noDictCount;
+
+ private int measureCount;
+
+ private boolean[] isNoDictionaryDimensionColumn;
+
+ private char[] aggType;
+
+ public NoSortProcessorStepImpl(CarbonDataLoadConfiguration configuration,
+ AbstractDataLoadProcessorStep child) {
+ super(configuration, child);
+ this.dimensionWithComplexCount = configuration.getDimensionCount();
+ this.noDictCount =
+ configuration.getNoDictionaryCount() + configuration.getComplexDimensionCount();
+ this.dimensionCount = configuration.getDimensionCount() - this.noDictCount;
+ this.measureCount = configuration.getMeasureCount();
+ this.isNoDictionaryDimensionColumn =
+ CarbonDataProcessorUtil.getNoDictionaryMapping(configuration.getDataFields());
+ this.aggType = CarbonDataProcessorUtil
+ .getAggType(configuration.getMeasureCount(), configuration.getMeasureFields());
+ }
+
+ @Override public DataField[] getOutput() {
+ return child.getOutput();
+ }
+
+ @Override public void initialize() throws IOException {
+ child.initialize();
+ }
+
+ @Override protected CarbonRow processRow(CarbonRow row) {
--- End diff --
add more comment here to explain what processing is done in this function.
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