Fix the Sin of Man

- Migrate to ClickHouse
- Simplify serde renaming
- Simplify backfill logic
- Compartmentalize database columns

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

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

@@ -0,0 +1,38 @@
+CREATE TABLE IF NOT EXISTS qrust.assets (
+    symbol String,
+    class Enum('us_equity' = 1, 'crypto' = 2),
+    exchange Enum(
+        'AMEX' = 1,
+        'ARCA' = 2,
+        'BATS' = 3,
+        'NASDAQ' = 4,
+        'NYSE' = 5,
+        'NYSEARCA' = 6,
+        'OTC' = 7,
+        'CRYPTO' = 8
+    ),
+    time_added DateTime DEFAULT now()
+)
+ENGINE = ReplacingMergeTree()
+PRIMARY KEY symbol;
+
+CREATE TABLE IF NOT EXISTS qrust.bars (
+    symbol String,
+    time DateTime,
+    open Float64,
+    high Float64,
+    low Float64,
+    close Float64,
+    volume Int64,
+    trades Int64,
+    vwap Float64
+)
+ENGINE = ReplacingMergeTree()
+PRIMARY KEY (symbol, time);
+
+CREATE TABLE IF NOT EXISTS qrust.bars_validity (
+    symbol String,
+    time_last DateTime
+)
+ENGINE = ReplacingMergeTree()
+PRIMARY KEY symbol;