sashapolo commented on code in PR #2728:
URL: https://github.com/apache/ignite-3/pull/2728#discussion_r1370004161
##########
modules/schema/src/main/java/org/apache/ignite/internal/schema/BinaryTuplePrefix.java:
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@@ -51,13 +52,36 @@ public BinaryTuplePrefix(int elementCount, ByteBuffer
buffer) {
super(elementCount, buffer);
}
+ /**
+ * Creates a prefix from provided {@link BinaryTuple}. If given tuple has
lesser or equal number of
+ * columns, then all elements will be used in resulting prefix. If given
tuple has more columns, then
+ * excess columns will be truncated.
+ *
+ * @param size The size of the complete tuple.
+ * @param tuple Tuple to create a prefix from.
+ * @return Prefix, created from provided tuple with regards to desired
size.
+ */
+ public static BinaryTuplePrefix fromBinaryTuple(int size, BinaryTuple
tuple) {
+ if (size == tuple.elementCount()) {
+ return entireTuple(tuple);
+ } else if (size > tuple.elementCount()) {
Review Comment:
My question is, why would a _prefix_ of a tuple have more elements than a
tuple?
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