kazuyukitanimura commented on code in PR #732:
URL: https://github.com/apache/datafusion-comet/pull/732#discussion_r1693734389
##########
common/src/main/java/org/apache/comet/vector/CometPlainVector.java:
##########
@@ -153,11 +153,7 @@ public CDataDictionaryProvider getDictionaryProvider() {
@Override
public boolean isNullAt(int rowId) {
- if (this.valueBufferAddress == -1) {
- return true;
- } else {
- return super.isNullAt(rowId);
- }
+ return this.valueBufferAddress == -1 || super.isNullAt(rowId);
Review Comment:
### Before
```
public boolean isNullAt(int);
Code:
0: aload_0
1: getfield #45 // Field valueBufferAddress:J
4: ldc2_w #42 // long -1l
7: lcmp
8: ifne 13
11: iconst_1
12: ireturn
13: aload_0
14: iload_1
15: invokespecial #195 // Method
org/apache/comet/vector/CometDecodedVector.isNullAt:(I)Z
18: ireturn
```
### After
```
public boolean isNullAt(int);
Code:
0: aload_0
1: getfield #45 // Field valueBufferAddress:J
4: ldc2_w #42 // long -1l
7: lcmp
8: ifeq 19
11: aload_0
12: iload_1
13: invokespecial #195 // Method
org/apache/comet/vector/CometDecodedVector.isNullAt:(I)Z
16: ifeq 23
19: iconst_1
20: goto 24
23: iconst_0
24: ireturn
```
So basically jump order is different and seems that is causing the
difference at least on my machine...
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