aweisberg commented on code in PR #4104:
URL: https://github.com/apache/cassandra/pull/4104#discussion_r2050774042
##########
src/java/org/apache/cassandra/db/filter/RowFilter.java:
##########
@@ -172,15 +174,21 @@ public boolean isStrict()
*/
public boolean isMutableIntersection()
{
- int count = 0;
+ Set<ColumnMetadata> columns = null;
for (Expression e : expressions)
{
if (e.column.isStatic() && expressions.size() > 1)
return true;
if (!e.column.isPrimaryKeyColumn())
- if (++count > 1)
+ {
+ if (columns == null)
+ columns = new HashSet<>(expressions.size());
Review Comment:
This will be slightly faster if you can use the unique ID of the column
because it won't have to hash and equals every single field in column metadata.
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