diff --git a/crates/plan-runner/fixtures/cartesian.json b/crates/plan-runner/fixtures/cartesian.json
index ea4188e..0f8a766 100644
--- a/crates/plan-runner/fixtures/cartesian.json
+++ b/crates/plan-runner/fixtures/cartesian.json
@@ -1,114 +1,114 @@
 {
-  "_scenario": "cartesian",
-  "expected_bindings": {
-    "columns": [
-      "a",
-      "b"
-    ],
-    "rows": [
-      [
-        {
-          "str": "left:1"
-        },
-        {
-          "str": "right:10"
-        }
-      ],
-      [
-        {
-          "str": "left:1"
-        },
-        {
-          "str": "right:20"
-        }
-      ],
-      [
-        {
-          "str": "left:2"
-        },
-        {
-          "str": "right:10"
-        }
-      ],
-      [
-        {
-          "str": "left:2"
-        },
-        {
-          "str": "right:20"
-        }
-      ]
-    ]
-  },
-  "facts": {
-    "left": [
-      [
-        {
-          "str": "left:1"
-        }
-      ],
-      [
-        {
-          "str": "left:2"
-        }
-      ]
-    ],
-    "right": [
-      [
-        {
-          "str": "right:10"
-        }
-      ],
-      [
-        {
-          "str": "right:20"
-        }
-      ]
-    ]
-  },
-  "query": {
-    "nodes": [
-      {
-        "action": {
-          "scan": {
-            "columns": [
-              {
-                "var": "a"
-              }
+    "_scenario": "cartesian",
+    "expected_bindings": {
+        "columns": [
+            "a",
+            "b"
+        ],
+        "rows": [
+            [
+                {
+                    "str": "left:1"
+                },
+                {
+                    "str": "right:10"
+                }
             ],
-            "table": "left"
-          }
-        },
-        "id": 1
-      },
-      {
-        "action": {
-          "scan": {
-            "columns": [
-              {
-                "var": "b"
-              }
+            [
+                {
+                    "str": "left:1"
+                },
+                {
+                    "str": "right:20"
+                }
             ],
-            "table": "right"
-          }
-        },
-        "id": 2
-      },
-      {
-        "action": {
-          "join": {
-            "left": 1,
-            "op": "natural",
-            "right": 2
-          }
-        },
-        "id": 3
-      }
-    ],
-    "root": 3
-  },
-  "schema": {
-    "left": 1,
-    "right": 1
-  }
+            [
+                {
+                    "str": "left:2"
+                },
+                {
+                    "str": "right:10"
+                }
+            ],
+            [
+                {
+                    "str": "left:2"
+                },
+                {
+                    "str": "right:20"
+                }
+            ]
+        ]
+    },
+    "facts": {
+        "left": [
+            [
+                {
+                    "str": "left:1"
+                }
+            ],
+            [
+                {
+                    "str": "left:2"
+                }
+            ]
+        ],
+        "right": [
+            [
+                {
+                    "str": "right:10"
+                }
+            ],
+            [
+                {
+                    "str": "right:20"
+                }
+            ]
+        ]
+    },
+    "query": {
+        "nodes": [
+            {
+                "action": {
+                    "scan": {
+                        "columns": [
+                            {
+                                "var": "a"
+                            }
+                        ],
+                        "table": "left"
+                    }
+                },
+                "id": 1
+            },
+            {
+                "action": {
+                    "scan": {
+                        "columns": [
+                            {
+                                "var": "b"
+                            }
+                        ],
+                        "table": "right"
+                    }
+                },
+                "id": 2
+            },
+            {
+                "action": {
+                    "join": {
+                        "left": 1,
+                        "op": "natural",
+                        "right": 2
+                    }
+                },
+                "id": 3
+            }
+        ],
+        "root": 3
+    },
+    "schema": {
+        "left": 1,
+        "right": 1
+    }
 }
diff --git a/crates/plan-runner/fixtures/self_loop.json b/crates/plan-runner/fixtures/self_loop.json
index f0b4fca..7bcffef 100644
--- a/crates/plan-runner/fixtures/self_loop.json
+++ b/crates/plan-runner/fixtures/self_loop.json
@@ -1,84 +1,84 @@
 {
-  "_scenario": "self-loop",
-  "expected_bindings": {
-    "columns": [
-      "x"
-    ],
-    "rows": [
-      [
-        {
-          "str": "node:2"
-        }
-      ],
-      [
-        {
-          "str": "node:3"
-        }
-      ]
-    ]
-  },
-  "facts": {
-    "edge": [
-      [
-        {
-          "str": "node:1"
-        },
-        {
-          "str": "node:2"
-        },
-        {
-          "str": "edge:1"
-        }
-      ],
-      [
-        {
-          "str": "node:2"
-        },
-        {
-          "str": "node:2"
-        },
-        {
-          "str": "edge:2"
-        }
-      ],
-      [
-        {
-          "str": "node:3"
-        },
-        {
-          "str": "node:3"
-        },
-        {
-          "str": "edge:3"
-        }
-      ]
-    ]
-  },
-  "query": {
-    "nodes": [
-      {
-        "action": {
-          "scan": {
-            "columns": [
-              {
-                "var": "x"
-              },
-              {
-                "var": "x"
-              },
-              {
-                "var": "_w0_2"
-              }
+    "_scenario": "self-loop",
+    "expected_bindings": {
+        "columns": [
+            "x"
+        ],
+        "rows": [
+            [
+                {
+                    "str": "node:2"
+                }
             ],
-            "table": "edge"
-          }
-        },
-        "id": 1
-      }
-    ],
-    "root": 1
-  },
-  "schema": {
-    "edge": 3
-  }
+            [
+                {
+                    "str": "node:3"
+                }
+            ]
+        ]
+    },
+    "facts": {
+        "edge": [
+            [
+                {
+                    "str": "node:1"
+                },
+                {
+                    "str": "node:2"
+                },
+                {
+                    "str": "edge:1"
+                }
+            ],
+            [
+                {
+                    "str": "node:2"
+                },
+                {
+                    "str": "node:2"
+                },
+                {
+                    "str": "edge:2"
+                }
+            ],
+            [
+                {
+                    "str": "node:3"
+                },
+                {
+                    "str": "node:3"
+                },
+                {
+                    "str": "edge:3"
+                }
+            ]
+        ]
+    },
+    "query": {
+        "nodes": [
+            {
+                "action": {
+                    "scan": {
+                        "columns": [
+                            {
+                                "var": "x"
+                            },
+                            {
+                                "var": "x"
+                            },
+                            {
+                                "var": "_w0_2"
+                            }
+                        ],
+                        "table": "edge"
+                    }
+                },
+                "id": 1
+            }
+        ],
+        "root": 1
+    },
+    "schema": {
+        "edge": 3
+    }
 }
diff --git a/crates/plan-runner/fixtures/three_atom_chain.json b/crates/plan-runner/fixtures/three_atom_chain.json
index 4d0812a..91a0b24 100644
--- a/crates/plan-runner/fixtures/three_atom_chain.json
+++ b/crates/plan-runner/fixtures/three_atom_chain.json
@@ -1,186 +1,186 @@
 {
-  "_scenario": "three-atom-chain",
-  "expected_bindings": {
-    "columns": [
-      "a",
-      "b",
-      "c"
-    ],
-    "rows": [
-      [
-        {
-          "str": "node:1"
-        },
-        {
-          "str": "node:2"
-        },
-        {
-          "str": "node:3"
-        }
-      ]
-    ]
-  },
-  "facts": {
-    "edge": [
-      [
-        {
-          "str": "node:1"
-        },
-        {
-          "str": "node:2"
-        },
-        {
-          "str": "edge:1"
-        }
-      ],
-      [
-        {
-          "str": "node:2"
-        },
-        {
-          "str": "node:3"
-        },
-        {
-          "str": "edge:2"
-        }
-      ]
-    ],
-    "node": [
-      [
-        {
-          "str": "node:1"
-        }
-      ],
-      [
-        {
-          "str": "node:2"
-        }
-      ],
-      [
-        {
-          "str": "node:3"
-        }
-      ]
-    ]
-  },
-  "query": {
-    "nodes": [
-      {
-        "action": {
-          "scan": {
-            "columns": [
-              {
-                "var": "a"
-              },
-              {
-                "var": "b"
-              },
-              {
-                "var": "_w0_2"
-              }
+    "_scenario": "three-atom-chain",
+    "expected_bindings": {
+        "columns": [
+            "a",
+            "b",
+            "c"
+        ],
+        "rows": [
+            [
+                {
+                    "str": "node:1"
+                },
+                {
+                    "str": "node:2"
+                },
+                {
+                    "str": "node:3"
+                }
+            ]
+        ]
+    },
+    "facts": {
+        "edge": [
+            [
+                {
+                    "str": "node:1"
+                },
+                {
+                    "str": "node:2"
+                },
+                {
+                    "str": "edge:1"
+                }
             ],
-            "table": "edge"
-          }
-        },
-        "id": 1
-      },
-      {
-        "action": {
-          "scan": {
-            "columns": [
-              {
-                "var": "b"
-              },
-              {
-                "var": "c"
-              },
-              {
-                "var": "_w1_2"
-              }
+            [
+                {
+                    "str": "node:2"
+                },
+                {
+                    "str": "node:3"
+                },
+                {
+                    "str": "edge:2"
+                }
+            ]
+        ],
+        "node": [
+            [
+                {
+                    "str": "node:1"
+                }
             ],
-            "table": "edge"
-          }
-        },
-        "id": 2
-      },
-      {
-        "action": {
-          "scan": {
-            "columns": [
-              {
-                "var": "a"
-              }
+            [
+                {
+                    "str": "node:2"
+                }
             ],
-            "table": "node"
-          }
-        },
-        "id": 3
-      },
-      {
-        "action": {
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-            "left": 1,
-            "op": "left",
-            "right": 3
-          }
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-            "op": "left",
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-        },
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-      },
-      {
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-      },
-      {
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-            "op": "right",
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-        "id": 7
-      },
-      {
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-            "op": "natural",
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-          }
-        },
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-      },
-      {
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-            "op": "natural",
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-        },
-        "id": 9
-      }
-    ],
-    "root": 9
-  },
-  "schema": {
-    "edge": 3,
-    "node": 1
-  }
+            [
+                {
+                    "str": "node:3"
+                }
+            ]
+        ]
+    },
+    "query": {
+        "nodes": [
+            {
+                "action": {
+                    "scan": {
+                        "columns": [
+                            {
+                                "var": "a"
+                            },
+                            {
+                                "var": "b"
+                            },
+                            {
+                                "var": "_w0_2"
+                            }
+                        ],
+                        "table": "edge"
+                    }
+                },
+                "id": 1
+            },
+            {
+                "action": {
+                    "scan": {
+                        "columns": [
+                            {
+                                "var": "b"
+                            },
+                            {
+                                "var": "c"
+                            },
+                            {
+                                "var": "_w1_2"
+                            }
+                        ],
+                        "table": "edge"
+                    }
+                },
+                "id": 2
+            },
+            {
+                "action": {
+                    "scan": {
+                        "columns": [
+                            {
+                                "var": "a"
+                            }
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+                        "table": "node"
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+                        "op": "left",
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+            },
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+                        "op": "left",
+                        "right": 4
+                    }
+                },
+                "id": 5
+            },
+            {
+                "action": {
+                    "join": {
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+                        "op": "right",
+                        "right": 4
+                    }
+                },
+                "id": 6
+            },
+            {
+                "action": {
+                    "join": {
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+                        "op": "right",
+                        "right": 3
+                    }
+                },
+                "id": 7
+            },
+            {
+                "action": {
+                    "join": {
+                        "left": 6,
+                        "op": "natural",
+                        "right": 7
+                    }
+                },
+                "id": 8
+            },
+            {
+                "action": {
+                    "join": {
+                        "left": 5,
+                        "op": "natural",
+                        "right": 8
+                    }
+                },
+                "id": 9
+            }
+        ],
+        "root": 9
+    },
+    "schema": {
+        "edge": 3,
+        "node": 1
+    }
 }
diff --git a/crates/plan-runner/fixtures/two_atom_join.json b/crates/plan-runner/fixtures/two_atom_join.json
index a3e4ab4..5b7a63e 100644
--- a/crates/plan-runner/fixtures/two_atom_join.json
+++ b/crates/plan-runner/fixtures/two_atom_join.json
@@ -1,136 +1,136 @@
 {
-  "_scenario": "two-atom-join",
-  "expected_bindings": {
-    "columns": [
-      "a",
-      "b"
-    ],
-    "rows": [
-      [
-        {
-          "str": "node:1"
-        },
-        {
-          "str": "node:2"
-        }
-      ],
-      [
-        {
-          "str": "node:2"
-        },
-        {
-          "str": "node:1"
-        }
-      ]
-    ]
-  },
-  "facts": {
-    "edge": [
-      [
-        {
-          "str": "node:1"
-        },
-        {
-          "str": "node:2"
-        },
-        {
-          "str": "edge:1"
-        }
-      ],
-      [
-        {
-          "str": "node:2"
-        },
-        {
-          "str": "node:1"
-        },
-        {
-          "str": "edge:2"
-        }
-      ]
-    ],
-    "node": [
-      [
-        {
-          "str": "node:1"
-        }
-      ],
-      [
-        {
-          "str": "node:2"
-        }
-      ]
-    ]
-  },
-  "query": {
-    "nodes": [
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-        "action": {
-          "scan": {
-            "columns": [
-              {
-                "var": "a"
-              },
-              {
-                "var": "b"
-              },
-              {
-                "var": "_w0_2"
-              }
+    "_scenario": "two-atom-join",
+    "expected_bindings": {
+        "columns": [
+            "a",
+            "b"
+        ],
+        "rows": [
+            [
+                {
+                    "str": "node:1"
+                },
+                {
+                    "str": "node:2"
+                }
             ],
-            "table": "edge"
-          }
-        },
-        "id": 1
-      },
-      {
-        "action": {
-          "scan": {
-            "columns": [
-              {
-                "var": "a"
-              }
+            [
+                {
+                    "str": "node:2"
+                },
+                {
+                    "str": "node:1"
+                }
+            ]
+        ]
+    },
+    "facts": {
+        "edge": [
+            [
+                {
+                    "str": "node:1"
+                },
+                {
+                    "str": "node:2"
+                },
+                {
+                    "str": "edge:1"
+                }
             ],
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-        "id": 5
-      }
-    ],
-    "root": 5
-  },
-  "schema": {
-    "edge": 3,
-    "node": 1
-  }
+            [
+                {
+                    "str": "node:2"
+                },
+                {
+                    "str": "node:1"
+                },
+                {
+                    "str": "edge:2"
+                }
+            ]
+        ],
+        "node": [
+            [
+                {
+                    "str": "node:1"
+                }
+            ],
+            [
+                {
+                    "str": "node:2"
+                }
+            ]
+        ]
+    },
+    "query": {
+        "nodes": [
+            {
+                "action": {
+                    "scan": {
+                        "columns": [
+                            {
+                                "var": "a"
+                            },
+                            {
+                                "var": "b"
+                            },
+                            {
+                                "var": "_w0_2"
+                            }
+                        ],
+                        "table": "edge"
+                    }
+                },
+                "id": 1
+            },
+            {
+                "action": {
+                    "scan": {
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+                            {
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+                            }
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+            {
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+                        "left": 1,
+                        "op": "left",
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+                    }
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+            },
+            {
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+                        "op": "right",
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+                "id": 4
+            },
+            {
+                "action": {
+                    "join": {
+                        "left": 3,
+                        "op": "natural",
+                        "right": 4
+                    }
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+                "id": 5
+            }
+        ],
+        "root": 5
+    },
+    "schema": {
+        "edge": 3,
+        "node": 1
+    }
 }
diff --git a/tools/plan-viewer/index.html b/tools/plan-viewer/index.html
index 31118bd..3965e01 100644
Binary files a/tools/plan-viewer/index.html and b/tools/plan-viewer/index.html differ