From e9291cf851c4cf51dc3300b4eff8102cd156ea35 Mon Sep 17 00:00:00 2001
From: Joris Nix <joris.nix@bigdata.uni-saarland.de>
Date: Tue, 13 Feb 2024 13:58:51 +0100
Subject: [PATCH] [IR] Fix dumping nested `QueryGraph`s.

Nested queries in SQL require an alias but internally created nested
queries, e.g. due to HAVING, do not have to.
---
 src/IR/QueryGraph.cpp | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/IR/QueryGraph.cpp b/src/IR/QueryGraph.cpp
index 710ebea9..0827b88b 100644
--- a/src/IR/QueryGraph.cpp
+++ b/src/IR/QueryGraph.cpp
@@ -2076,12 +2076,12 @@ void QueryGraph::dump(std::ostream &out) const
             auto &srcs = j->sources();
             for (auto it = srcs.begin(), end = srcs.end(); it != end; ++it) {
                 if (it != srcs.begin()) out << ' ';
-                if (it->get().alias()) {
+                if (it->get().alias())
                     out << it->get().alias();
-                } else {
-                    auto bt = as<const BaseTable>(it->get());
-                    out << bt.name();
-                }
+                else if (auto bt = cast<const BaseTable>(&it->get()))
+                    out << bt->name();
+                else
+                    out << "(...)";
             }
             out << "}  " << j->condition();
         }