From 3b0ff3d950b3a845964aff54846b8c72e31f0332 Mon Sep 17 00:00:00 2001
From: Brian Sakal <brian@sakal.us>
Date: Wed, 26 Apr 2023 23:37:26 -0400
Subject: [PATCH] tuples as keys; get underlyings list

---
 index.ts | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/index.ts b/index.ts
index 4b74650..433b7f1 100644
--- a/index.ts
+++ b/index.ts
@@ -75,6 +75,18 @@ function countRowsInLmdb(){
   return db.getKeysCount();
 }
 
+function getUnderlyingsSet(){
+  const underlyings = new Set();
+  db.getKeys({start:['A']}).forEach(([underlying])=>{
+    underlyings.add(underlying);
+  });
+  return underlyings
+}
+
 //console.log('rows-in-csv:', await countRowsInCsv());
 //console.log('rows-in-lmdb:', countRowsInLmdb());
-await ingestCsvToLmdb();
\ No newline at end of file
+//await ingestCsvToLmdb();
+for(let key in getUnderlyingsSet().values()){ 
+  console.log(key);
+}
+Array.from(getUnderlyingsSet().values()).forEach((x)=>{ console.log(x) })
\ No newline at end of file