virajjasani commented on code in PR #2134:
URL: https://github.com/apache/phoenix/pull/2134#discussion_r2067030853
##########
phoenix-core-server/src/main/java/org/apache/phoenix/coprocessor/CompactionScanner.java:
##########
@@ -180,13 +181,13 @@ public CompactionScanner(RegionCoprocessorEnvironment env,
// Empty column family and qualifier are always needed to compute
which all empty cells to retain
// even during minor compactions. If required empty cells are not
retained during
// minor compactions then we can run into the risk of partial row
expiry on next major compaction.
- this.emptyCF = SchemaUtil.getEmptyColumnFamily(table);
- this.emptyCQ = SchemaUtil.getEmptyColumnQualifier(table);
+ this.emptyCF = table != null ? SchemaUtil.getEmptyColumnFamily(table)
: EMPTY_BYTE_ARRAY;
+ this.emptyCQ = table != null ?
SchemaUtil.getEmptyColumnQualifier(table) : EMPTY_BYTE_ARRAY;
Review Comment:
Why not keep emptyCF and emptyCQ as null if PTable is null, so that we can
also incorporate this logic?
Instead of
```
if (ScanUtil.isEmptyColumn(cell, emptyCF, emptyCQ)) {
index = addEmptyColumn(result, currentColumnCell,
index, emptyColumn);
} else {
index = skipColumn(result, currentColumnCell,
retainedCells, index);
}
```
this
```
if (emptyCF != null && emptyCQ != null &&
ScanUtil.isEmptyColumn(cell, emptyCF,
emptyCQ)) {
index = addEmptyColumn(result, currentColumnCell,
index, emptyColumn);
} else {
index = skipColumn(result, currentColumnCell,
retainedCells, index);
}
```
and similarly, `if (emptyCQ == EMPTY_BYTE_ARRAY)` too will be simple null
check
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