xubo245 commented on a change in pull request #3834:
URL: https://github.com/apache/carbondata/pull/3834#discussion_r460376359
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File path: sdk/sdk/src/main/java/org/apache/carbondata/sdk/file/CarbonIUD.java
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@@ -0,0 +1,275 @@
+package org.apache.carbondata.sdk.file;
+
+import org.apache.carbondata.common.exceptions.sql.InvalidLoadOptionException;
+import org.apache.carbondata.core.constants.CarbonCommonConstants;
+import org.apache.carbondata.core.datastore.impl.FileFactory;
+import org.apache.carbondata.core.metadata.datatype.DataType;
+import org.apache.carbondata.core.metadata.datatype.Field;
+import org.apache.carbondata.core.scan.expression.ColumnExpression;
+import org.apache.carbondata.core.scan.expression.Expression;
+import org.apache.carbondata.core.scan.expression.LiteralExpression;
+import
org.apache.carbondata.core.scan.expression.conditional.EqualToExpression;
+import org.apache.carbondata.core.scan.expression.logical.AndExpression;
+import org.apache.carbondata.hadoop.api.CarbonTableOutputFormat;
+import org.apache.carbondata.hadoop.internal.ObjectArrayWritable;
+
+import java.io.File;
+import java.io.FilenameFilter;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import com.jcraft.jsch.IO;
+import org.apache.hadoop.io.NullWritable;
+import org.apache.hadoop.mapred.JobConf;
+import org.apache.hadoop.mapreduce.Job;
+import org.apache.hadoop.mapreduce.RecordWriter;
+import org.apache.hadoop.mapreduce.TaskAttemptID;
+import org.apache.hadoop.mapreduce.task.TaskAttemptContextImpl;
+
+public class CarbonIUD {
+
+ private final Map<String, Map<String, String>> filterColumnToValueMapping;
+ private final Map<String, Map<String, String>> updateColumnToValueMapping;
+
+ private CarbonIUD() {
+ filterColumnToValueMapping = new HashMap<>();
+ updateColumnToValueMapping = new HashMap<>();
+ }
+
+ /**
+ * @return CarbonIUD object
+ */
+ public static CarbonIUD getInstance() {
+ return new CarbonIUD();
+ }
+
+ /**
+ * @param path is the segment path on which delete is performed
+ * @param column is the columeName on which records have to be deleted
+ * @param value of column on which the records have to be deleted
+ * @return CarbonIUD object
+ * <p>
+ * for eg: DELETE WHERE column = value
+ */
+ public CarbonIUD delete(String path, String column, String value) {
+ prepareDelete(path, column, value);
+ return this;
+ }
+
+ /**
+ * @param path is the segment path on which delete is performed
+ * @param filterExpression is the expression to delete the records
+ * @throws IOException
+ * @throws InterruptedException
+ */
+ public void delete(String path, Expression filterExpression)
Review comment:
please test the performance
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