morrySnow commented on code in PR #58776:
URL: https://github.com/apache/doris/pull/58776#discussion_r2647703047
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/rules/rewrite/AccessPathPlanCollector.java:
##########
@@ -56,6 +69,145 @@ public Map<Slot, List<CollectAccessPathResult>>
collect(Plan root, StatementCont
return scanSlotToAccessPaths;
}
+ @Override
+ public Void visitLogicalGenerate(LogicalGenerate<? extends Plan> generate,
StatementContext context) {
+ List<Function> generators = generate.getGenerators();
+ List<Slot> output = generate.getGeneratorOutput();
+
+ AccessPathExpressionCollector exprCollector
+ = new AccessPathExpressionCollector(context,
allSlotToAccessPaths, false);
+ for (int i = 0; i < output.size(); i++) {
+ Slot generatorOutput = output.get(i);
+ Function function = generators.get(i);
+ Collection<CollectAccessPathResult> accessPaths =
allSlotToAccessPaths.get(
+ generatorOutput.getExprId().asInt());
+ if (function instanceof Explode || function instanceof
ExplodeOuter) {
+ if (accessPaths.isEmpty()) {
+ // use the whole column
+ for (Expression child : function.children()) {
+ exprCollector.collect(child);
+ }
+ } else {
+ for (CollectAccessPathResult accessPath : accessPaths) {
+ List<String> path = accessPath.getPath();
+ if (function.arity() == 1) {
+ // $c$1.VALUES.b
Review Comment:
better to add some comment
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