From 8b27f7089dbeb56830066d2919451fecf9678edb Mon Sep 17 00:00:00 2001
From: Jason Volk <jason@zemos.net>
Date: Tue, 25 Sep 2018 02:37:29 -0700
Subject: [PATCH] ircd::db: Supply an insertion hint prefix extractor.

---
 ircd/db.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ircd/db.cc b/ircd/db.cc
index df4ecf19c..3fb49b586 100644
--- a/ircd/db.cc
+++ b/ircd/db.cc
@@ -1430,6 +1430,10 @@ ircd::db::database::column::column(database *const &d,
 			&this->prefix, [](const rocksdb::SliceTransform *) {}
 		};
 
+	// Set the insert hint prefix extractor
+	if(this->options.prefix_extractor)
+		this->options.memtable_insert_with_hint_prefix_extractor = this->options.prefix_extractor;
+
 	// Set the compaction filter
 	this->options.compaction_filter = &this->cfilter;