Github user nongli commented on the pull request:
https://github.com/apache/spark/pull/11792#issuecomment-198060051
Generated code before:
```
InternalRow scan_row = scan_batch.getRow(scan_batchIdx++);
/* input[0, int] */
boolean scan_isNull = scan_row.isNullAt(0);
int scan_value = scan_isNull ? -1 : (scan_row.getInt(0));
/* input[1, int] */
boolean scan_isNull1 = scan_row.isNullAt(1);
int scan_value1 = scan_isNull1 ? -1 : (scan_row.getInt(1));
if (scan_isNull) continue;
if (scan_isNull1) continue;
/* (input[0, int] >= 2452245) */
boolean filter_value = false;
filter_value = scan_value >= 2452245;
if (!filter_value) continue;
/* (input[0, int] <= 2452275) */
boolean filter_value3 = false;
filter_value3 = scan_value <= 2452275;
if (!filter_value3) continue;
filter_metricValue.add(1);
```
with this patch
```
InternalRow scan_row = scan_batch.getRow(scan_batchIdx++);
/* input[0, int] */
boolean scan_isNull = scan_row.isNullAt(0);
int scan_value = scan_isNull ? -1 : (scan_row.getInt(0));
if (!(!(scan_isNull))) continue;
/* (input[0, int] >= 2452245) */
boolean filter_value2 = false;
filter_value2 = scan_value >= 2452245;
if (!filter_value2) continue;
/* (input[0, int] <= 2452275) */
boolean filter_value5 = false;
filter_value5 = scan_value <= 2452275;
if (!filter_value5) continue;
/* input[1, int] */
boolean scan_isNull1 = scan_row.isNullAt(1);
int scan_value1 = scan_isNull1 ? -1 : (scan_row.getInt(1));
if (!(!(scan_isNull1))) continue;
filter_metricValue.add(1);
```
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