Add position types

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

support/clickhouse/docker-entrypoint-initdb.d/0000_init.sql

@@ -118,3 +118,9 @@ ENGINE = ReplacingMergeTree()
 PARTITION BY toYYYYMM(time_submitted)
 PRIMARY KEY id;
 
+CREATE TABLE IF NOT EXISTS qrust.positions (
+    symbol LowCardinality(String),
+    qty Float64
+)
+ENGINE = ReplacingMergeTree()
+PRIMARY KEY symbol;