Init scrips for postgres.

pg/list-ids.sql

@@ -0,0 +1,13 @@
+SELECT
+    COUNT(value),
+    SUBSTRING(value from '(.*)<') AS name,
+    COALESCE(SUBSTRING(value from '<(.*)>'), value) AS id
+FROM
+    header
+WHERE
+    name = 'List-Id'
+GROUP BY
+    value
+ORDER BY
+    count DESC
+;

pg/named-list-ids.sql

@@ -0,0 +1,30 @@
+SELECT
+    DISTINCT ON(
+        LOWER(COALESCE(SUBSTRING(value from '<(.*)>'), value)))
+    COALESCE(named.count, 1),
+    LOWER(COALESCE(named.name,
+        LOWER(COALESCE(SUBSTRING(value from '<(.*)>'), value)))) AS id,
+    unnamed.name AS name
+FROM
+    header unnamed
+LEFT OUTER JOIN (
+    SELECT
+        DISTINCT ON (LOWER(COALESCE(SUBSTRING(value from '<(.*)>'), value)))
+        COUNT(value) AS count,
+        SUBSTRING(value from '(.*)<') AS name,
+        LOWER(COALESCE(SUBSTRING(value from '<(.*)>'), value)) AS id
+    FROM
+        header
+    WHERE
+        name != ''
+    GROUP BY
+        LOWER(COALESCE(SUBSTRING(value from '<(.*)>'), value)),
+        SUBSTRING(value from '(.*)<')
+    ORDER BY
+        id,
+        count DESC,
+        name
+) named
+ON
+    named.id = LOWER(COALESCE(SUBSTRING(unnamed.value from '<(.*)>'), unnamed.value))
+;