From f8d299b2872ba432cc42318eab8c83feeb408f46 Mon Sep 17 00:00:00 2001
From: Bill Thiede <git@xinu.tv>
Date: Sun, 13 Apr 2014 21:04:33 -0700
Subject: [PATCH] Initial version of query showing messages without date field.

---
 pg/dateless.sql | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 pg/dateless.sql

diff --git a/pg/dateless.sql b/pg/dateless.sql
new file mode 100644
index 0000000..d321cdb
--- /dev/null
+++ b/pg/dateless.sql
@@ -0,0 +1,31 @@
+/* Select all rows from left table which aren't in right table.
+
+   SELECT  l.*
+   FROM    t_left l
+   LEFT JOIN t_right r
+   ON      r.value = l.value
+   WHERE   r.value IS NULL
+ */
+
+/*
+   TODO Add another layer of JOINs to show the value where name='Received' for
+   the missing hashes.  Maybe we can parse dates from there.
+ */
+SELECT
+    l.hash, r.value
+FROM
+    original l
+LEFT JOIN (
+    SELECT
+        hash,
+        value
+    FROM
+        search_header
+    WHERE
+        name = 'Date'
+    ) r
+ON
+    r.hash = l.hash
+WHERE
+    r.hash IS NULL
+;