From 5e5004020eb85a82394ac4d8bd83765304ffd8da Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Thu, 24 Feb 2022 10:06:43 +0100
Subject: -fix aggregator with deferred constraint

---
 src/exchangedb/exchange-0001.sql | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

(limited to 'src/exchangedb/exchange-0001.sql')

diff --git a/src/exchangedb/exchange-0001.sql b/src/exchangedb/exchange-0001.sql
index 477a9b0dc..125f1020d 100644
--- a/src/exchangedb/exchange-0001.sql
+++ b/src/exchangedb/exchange-0001.sql
@@ -581,7 +581,7 @@ CREATE INDEX IF NOT EXISTS wire_out_by_wire_target_serial_id_index
 CREATE TABLE IF NOT EXISTS aggregation_tracking
   (aggregation_serial_id BIGINT GENERATED BY DEFAULT AS IDENTITY -- UNIQUE
   ,deposit_serial_id INT8 PRIMARY KEY -- REFERENCES deposits (deposit_serial_id) ON DELETE CASCADE
-  ,wtid_raw BYTEA CONSTRAINT wire_out_ref REFERENCES wire_out(wtid_raw) ON DELETE CASCADE DEFERRABLE
+  ,wtid_raw BYTEA NOT NULL CONSTRAINT wire_out_ref REFERENCES wire_out(wtid_raw) ON DELETE CASCADE DEFERRABLE
   )
   PARTITION BY HASH (deposit_serial_id);
 COMMENT ON TABLE aggregation_tracking
@@ -1078,6 +1078,23 @@ COMMENT ON FUNCTION exchange_do_withdraw_limit_check(INT8, INT8, INT8, INT4)
   IS 'Check whether the withdrawals from the given reserve since the given time are below the given threshold';
 
 
+-- NOTE: experiment, currently dead, see postgres_Start_deferred_wire_out;
+-- now done inline. FIXME: Remove code here once inline version is confirmed working nicely!
+CREATE OR REPLACE PROCEDURE defer_wire_out()
+LANGUAGE plpgsql
+AS $$
+BEGIN
+
+IF EXISTS (
+  SELECT 1
+    FROM information_Schema.constraint_column_usage
+   WHERE table_name='wire_out'
+     AND constraint_name='wire_out_ref') 
+THEN 
+  SET CONSTRAINTS wire_out_ref DEFERRED;
+END IF;
+
+END $$;
 
 
 CREATE OR REPLACE FUNCTION exchange_do_deposit(
-- 
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