mike-tr-adamson commented on code in PR #2673:
URL: https://github.com/apache/cassandra/pull/2673#discussion_r1358126158
##########
src/java/org/apache/cassandra/cql3/restrictions/SingleColumnRestriction.java:
##########
@@ -804,4 +824,70 @@ else if (ByteBufferUtil.startsWith(value, LIKE_WILDCARD))
return Pair.create(operator, newValue);
}
}
+ public static final class AnnRestriction extends SingleColumnRestriction
+ {
+ private final Term value;
+
+ public AnnRestriction(ColumnMetadata columnDef, Term value)
+ {
+ super(columnDef);
+ this.value = value;
+ }
+
+ public ByteBuffer value(QueryOptions options)
+ {
+ return value.bindAndGet(options);
+ }
+
+ @Override
+ public boolean isANN()
+ {
+ return true;
+ }
+
+ @Override
+ public void addFunctionsTo(List<Function> functions)
+ {
+ value.addFunctionsTo(functions);
+ }
+
+ @Override
+ MultiColumnRestriction toMultiColumnRestriction()
+ {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public void addToRowFilter(RowFilter filter,
+ IndexRegistry indexRegistry,
+ QueryOptions options)
+ {
+ filter.add(columnDef, Operator.ANN, value.bindAndGet(options));
+ }
+
+ @Override
+ public MultiCBuilder appendTo(MultiCBuilder builder, QueryOptions
options)
+ {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public String toString()
+ {
+ return String.format("ANN(%s)", value);
+ }
+
+ @Override
+ public SingleRestriction doMergeWith(SingleRestriction
otherRestriction)
+ {
+ // VSTODO not sure if this is right
Review Comment:
It was obsolete but was throwing the wrong exception. I have changed the
implementation to:
```
throw invalidRequest("%s cannot be restricted by more than one relation
in an ANN ordering", columnDef.name);
```
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