Make renameDuplicateColumnHeaders case insensitive (#1197)

jtablesaw · Apr 19, 2023 · a6d644d · a6d644d
1 parent a25263c
commit a6d644d
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/core/src/main/java/tech/tablesaw/io/FileReader.java b/core/src/main/java/tech/tablesaw/io/FileReader.java
@@ -132,12 +132,12 @@ private void renameDuplicateColumnHeaders(String[] headerNames) {
     Map<String, Integer> nameCounter = new HashMap<>();
     for (int i = 0; i < headerNames.length; i++) {
       String name = headerNames[i];
-      Integer count = nameCounter.get(name);
+      Integer count = nameCounter.get(name.toLowerCase());
       if (count == null) {
-        nameCounter.put(name, 1);
+        nameCounter.put(name.toLowerCase(), 1);
       } else {
         count++;
-        nameCounter.put(name, count);
+        nameCounter.put(name.toLowerCase(), count);
         headerNames[i] = name + "-" + count;
       }
     }