minor refactoring - sql schema updated

Author: idugalic

src/main/resources/sql/event_sourcing.sql

@@ -3,6 +3,7 @@
 --      ########################
 
 -- Registered deciders and the respectful events that these deciders can publish (decider can publish and/or source its own state from these event types only)
+DROP TABLE IF EXISTS deciders CASCADE;
 CREATE TABLE IF NOT EXISTS deciders
 (
     -- decider name/type

src/main/resources/sql/event_streaming.sql

@@ -6,7 +6,8 @@
 -- The views table is a registry of all views/subscribers that are able to subscribe to all events with a "pooling_delay" frequency.
 -- You can not start consuming events without previously registering the view.
 -- see: `stream_events` function
-CREATE TABLE views
+DROP TABLE IF EXISTS views CASCADE;
+CREATE TABLE IF NOT EXISTS views
 (
     -- view identifier/name
     "view"          TEXT,
@@ -46,8 +47,6 @@ CREATE TABLE IF NOT EXISTS locks
     FOREIGN KEY ("view") REFERENCES views ("view") ON DELETE CASCADE
 );
 
-CREATE INDEX IF NOT EXISTS locks_index ON locks ("decider_id", "locked_until", "last_offset");
-
 -- SIDE EFFECT:  before_update_views_table - automatically bump "updated_at" when modifying a view
 CREATE OR REPLACE FUNCTION "before_update_views_table"() RETURNS trigger AS
 '