db: add 001_schema_asset & 002_table_stock

src/libtrader/db/sql/000_table_companies.sql

@@ -1,5 +1,5 @@
 CREATE TABLE companies (
-    id               SERIAL PRIMARY KEY
+    id               BIGSERIAL PRIMARY KEY
     symbol           text UNIQUE NOT NULL
     isin             text UNIQUE NOT NULL
     company_name     text NOT NULL
@@ -7,5 +7,5 @@ CREATE TABLE companies (
     sector           text NOT NULL
     industry         text NOT NULL
     primary_sic_code text NOT NULL
-    employees        integer NOT NULL
+    employees        bigint NOT NULL
 )

src/libtrader/db/sql/001_schema_asset.sql

@@ -0,0 +1 @@
+CREATE SCHEMA asset;

src/libtrader/db/sql/002_table_stock.sql

@@ -0,0 +1,8 @@
+CREATE TABLE asset.stock_vals (
+	id					BIGSERIAL PRIMARY KEY
+	isin				text NOT NULL
+	time_since_epoch 	timestamp NOT NULL
+	ask_price			numeric NOT NULL
+	bid_price			numeric NOT NULL
+	volume				bigint NOT NULL
+)