Add transaction index to flip kick

db/migrations/1532468319_create_flip_kick_table.up.sql

@@ -8,5 +8,6 @@ CREATE TABLE maker.flip_kick (
 	"end"            TIMESTAMP WITH TIME ZONE,
   urn              VARCHAR,
   tab              NUMERIC,
+  tx_idx           INTEGER NOT NUll,
   raw_log          JSONB
 );

db/schema.sql

@@ -233,6 +233,7 @@ CREATE TABLE maker.flip_kick (
     "end" timestamp with time zone,
     urn character varying,
     tab numeric,
+    tx_idx integer NOT NULL,
     raw_log jsonb
 );