Added Truncate Function

import_multi_row.js

@@ -60,43 +60,48 @@ xml2js.parseString(xmlString, async (err, result) => {
 
   const startTime = new Date();
 
-  for (let i = 1; i < data.length; i++) {
-    const row = data[i];
-    const mappedEmployee = {};
-
-    // Map the employeeid value from the Excel column
-    const employeeid = row[employeeidColumnIndex];
-    mappedEmployee.employeeid = replacePlaceholders(employeeidTag, employeeid);
-
-    mappedEmployee.formulaid = formulaidTags.reduce((result, tag) => {
-      const { column, value } = tag.$;
-      const columnIndex = data[0].indexOf(column);
-
-      if (columnIndex !== -1 && row[columnIndex] !== undefined) {
-        const tagType = column.startsWith('INC') ? 'INC' : 'DCT';
-        result.push({
-          tagType,
-          formulaid: replacePlaceholders(column, row[columnIndex]),
-          value: replacePlaceholders(value, row[columnIndex]),
-        });
-      }
-
-      return result;
-    }, []);
-
-    jsonData.employee.push(mappedEmployee);
-
-    // Calculate progress
-    const progress = (i / (data.length - 1)) * 100;
-    console.log(`Progress: ${progress.toFixed(2)}%`);
-  }
-
   try {
     // Connect to the PostgreSQL database
     const client = await pool.connect();
 
-    // Insert the data into the PostgreSQL database
     const tableName = 'tpytran1'; // Specify the table name
+
+    // Truncate the table and restart identity
+    const truncateQuery = `TRUNCATE TABLE ${tableName} RESTART IDENTITY`;
+    await client.query(truncateQuery);
+
+    // Insert the data into the PostgreSQL database
+    for (let i = 1; i < data.length; i++) {
+      const row = data[i];
+      const mappedEmployee = {};
+
+      // Map the employeeid value from the Excel column
+      const employeeid = row[employeeidColumnIndex];
+      mappedEmployee.employeeid = replacePlaceholders(employeeidTag, employeeid);
+
+      mappedEmployee.formulaid = formulaidTags.reduce((result, tag) => {
+        const { column, value } = tag.$;
+        const columnIndex = data[0].indexOf(column);
+
+        if (columnIndex !== -1 && row[columnIndex] !== undefined) {
+          const tagType = column.startsWith('INC') ? 'INC' : 'DCT';
+          result.push({
+            tagType,
+            formulaid: replacePlaceholders(column, row[columnIndex]),
+            value: replacePlaceholders(value, row[columnIndex]),
+          });
+        }
+
+        return result;
+      }, []);
+
+      jsonData.employee.push(mappedEmployee);
+
+      // Calculate progress
+      const progress = (i / (data.length - 1)) * 100;
+      console.log(`Progress: ${progress.toFixed(2)}%`);
+    }
+
     for (const employee of jsonData.employee) {
       const { employeeid, formulaid } = employee;