From 8929b4eea93940728ff0377002fb486af1275e82 Mon Sep 17 00:00:00 2001
From: Paul Trowbridge <ptrowbridge@hc-comapnies.com>
Date: Wed, 25 Oct 2017 12:05:28 -0400
Subject: [PATCH] try using correlated subquery for unique list of keys, is
 pretty slow

---
 srce_defn.pgsql | 23 +++++++++++++++--------
 1 file changed, 15 insertions(+), 8 deletions(-)

diff --git a/srce_defn.pgsql b/srce_defn.pgsql
index 79046fb..65361c3 100644
--- a/srce_defn.pgsql
+++ b/srce_defn.pgsql
@@ -1,17 +1,24 @@
+\timing
+/*
 WITH
 ext AS (
 SELECT 
     srce
     ,defn->'unique_constraint'->>'fields'
-    ,ARRAY(SELECT ae.e::text[] FROM jsonb_array_elements_text(defn->'unique_constraint'->'fields') ae(e)) txa
+    ,ARRAY(SELECT ae.e::text[] FROM jsonb_array_elements_text(defn->'unique_constraint'->'fields') ae(e)) text_array
 FROM
     tps.srce
+    --add where clause for targeted source
 )
-SELECT
-    srce
-    ,
-    public.jsonb_extract(rec,txa)
+*/
+
+SELECT COUNT(*) FROM
+(
+SELECT DISTINCT
+    t.srce
+    ,(SELECT JSONB_OBJECT_agg(ae.e,rec #> ae.e::text[]) FROM jsonb_array_elements_text(defn->'unique_constraint'->'fields') ae(e)) ja
 FROM
-    tps.trans
-    INNER JOIN ext ON
-        trans.srce = ext.srce
\ No newline at end of file
+    tps.trans t
+    INNER JOIN tps.srce s ON
+        s.srce = t.srce
+) X
\ No newline at end of file