Add shared lib

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

src/lib/database/backfills_bars.rs

@@ -0,0 +1,21 @@
+use std::sync::Arc;
+
+use crate::{
+    cleanup, delete_where_symbols, optimize, select_where_symbols, types::Backfill, upsert_batch,
+};
+use clickhouse::{error::Error, Client};
+use tokio::sync::Semaphore;
+
+select_where_symbols!(Backfill, "backfills_bars");
+upsert_batch!(Backfill, "backfills_bars");
+delete_where_symbols!("backfills_bars");
+cleanup!("backfills_bars");
+optimize!("backfills_bars");
+
+pub async fn unfresh(client: &Client, concurrency_limiter: &Arc<Semaphore>) -> Result<(), Error> {
+    let _ = concurrency_limiter.acquire().await.unwrap();
+    client
+        .query("ALTER TABLE backfills_bars UPDATE fresh = false WHERE true")
+        .execute()
+        .await
+}