924060929 commented on code in PR #47608:
URL: https://github.com/apache/doris/pull/47608#discussion_r1981340800
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/rules/expression/rules/OneListPartitionEvaluator.java:
##########
@@ -58,23 +64,71 @@ public K getPartitionIdent() {
@Override
public List<Map<Slot, PartitionSlotInput>> getOnePartitionInputs() {
+ if (partitionSlots.size() == 1) {
+ // fast path
+ return getInputsByOneSlot();
+ } else {
+ // slow path
+ return getInputsByMultiSlots();
+ }
+ }
+
+ private List<Map<Slot, PartitionSlotInput>> getInputsByOneSlot() {
+ ImmutableList.Builder<Map<Slot, PartitionSlotInput>> inputs
+ =
ImmutableList.builderWithExpectedSize(partitionItem.getItems().size());
+ Slot slot = partitionSlots.get(0);
+ for (PartitionKey item : partitionItem.getItems()) {
+ LiteralExpr legacy = item.getKeys().get(0);
+ inputs.add(ImmutableMap.of(
+ slot,
+ new PartitionSlotInput(Literal.fromLegacyLiteral(legacy,
legacy.getType()), ImmutableMap.of()))
+ );
+ }
+ return inputs.build();
+ }
+
+ private List<Map<Slot, PartitionSlotInput>> getInputsByMultiSlots() {
return partitionItem.getItems().stream()
- .map(keys -> {
- List<Literal> literals = keys.getKeys()
- .stream()
- .map(literal -> Literal.fromLegacyLiteral(literal,
literal.getType()))
- .collect(ImmutableList.toImmutableList());
-
- return IntStream.range(0, partitionSlots.size())
- .mapToObj(index -> {
- Slot partitionSlot = partitionSlots.get(index);
- // partitionSlot will be replaced to this literal
- Literal literal = literals.get(index);
- // list partition don't need to compute the slot's
range,
- // so we pass through an empty map
- return Pair.of(partitionSlot, new
PartitionSlotInput(literal, ImmutableMap.of()));
- }).collect(ImmutableMap.toImmutableMap(Pair::key,
Pair::value));
- }).collect(ImmutableList.toImmutableList());
+ .map(keys -> {
+ List<Literal> literals = keys.getKeys()
+ .stream()
+ .map(literal -> Literal.fromLegacyLiteral(literal,
literal.getType()))
+ .collect(ImmutableList.toImmutableList());
+
+ return IntStream.range(0, partitionSlots.size())
+ .mapToObj(index -> {
+ Slot partitionSlot = partitionSlots.get(index);
+ // partitionSlot will be replaced to this
literal
+ Literal literal = literals.get(index);
+ // list partition don't need to compute the
slot's range,
+ // so we pass through an empty map
+ return Pair.of(partitionSlot, new
PartitionSlotInput(literal, ImmutableMap.of()));
+ }).collect(ImmutableMap.toImmutableMap(Pair::key,
Pair::value));
+ }).collect(ImmutableList.toImmutableList());
+ }
+
+ @Override
+ public Expression visitInPredicate(InPredicate inPredicate, Map<Slot,
PartitionSlotInput> context) {
+ if (!inPredicate.optionsAreLiterals()) {
+ return super.visitInPredicate(inPredicate, context);
+ }
+
+ if (inPredicate.optionsContainsNullLiteral()) {
Review Comment:
> why return NullLiteral?
the result of `column in (xxx, null)` is null
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