Github user JamesRTaylor commented on a diff in the pull request: https://github.com/apache/phoenix/pull/301#discussion_r190381688 --- Diff: phoenix-core/src/main/java/org/apache/phoenix/compile/UpsertCompiler.java --- @@ -549,7 +549,7 @@ public MutationPlan compile(UpsertStatement upsert) throws SQLException { select = SelectStatement.create(select, hint); // Pass scan through if same table in upsert and select so that projection is computed correctly // Use optimizer to choose the best plan - QueryCompiler compiler = new QueryCompiler(statement, select, selectResolver, targetColumns, parallelIteratorFactoryToBe, new SequenceManager(statement), false, false, null); + QueryCompiler compiler = new QueryCompiler(statement, select, selectResolver, targetColumns, parallelIteratorFactoryToBe, new SequenceManager(statement), true, false, null); --- End diff -- This seems like too general of a change for the specific issue you're trying to fix for ARRAY_APPEND. I'm also not sure *why* it would impact it. Can't you make changes to ArrayAppendFunction or it's base class to get the desired affect? Any opinions, @maryannxue. Do you remember when/why we need this projectTuples boolean for QueryCompiler?
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