fix: let users opt into system databases

crates/dbx-core/src/db/clickhouse_driver.rs

@@ -172,14 +172,7 @@ pub async fn test_connection(client: &ChClient) -> Result<(), String> {
 }
 
 pub async fn list_databases(client: &ChClient) -> Result<Vec<DatabaseInfo>, String> {
-    let result = ch_query(
-        client,
-        "SELECT name FROM system.databases \
-         WHERE name NOT IN ('system', 'INFORMATION_SCHEMA', 'information_schema') \
-         ORDER BY name",
-        None,
-    )
-    .await?;
+    let result = ch_query(client, "SELECT name FROM system.databases ORDER BY name", None).await?;
     Ok(result.data.iter().map(|row| DatabaseInfo { name: row[0].as_str().unwrap_or("").to_string() }).collect())
 }
 

crates/dbx-core/src/db/mysql.rs

@@ -274,11 +274,7 @@ pub async fn connect_bare(url: &str) -> Result<MySqlPool, String> {
 pub async fn list_databases(pool: &MySqlPool) -> Result<Vec<DatabaseInfo>, String> {
     let mut conn = pool.get_conn().await.map_err(|e| e.to_string())?;
     let result = conn
-        .query_iter(
-            "SELECT SCHEMA_NAME FROM information_schema.SCHEMATA \
-             WHERE SCHEMA_NAME NOT IN ('information_schema', 'mysql', 'performance_schema', 'sys') \
-             ORDER BY SCHEMA_NAME",
-        )
+        .query_iter("SELECT SCHEMA_NAME FROM information_schema.SCHEMATA ORDER BY SCHEMA_NAME")
         .await
         .map_err(|e| e.to_string())?;
     let rows: Vec<mysql_async::Row> = result.collect_and_drop().await.map_err(|e| e.to_string())?;

crates/dbx-core/src/db/sqlserver.rs

@@ -261,8 +261,7 @@ pub async fn list_databases(client: &mut SqlServerClient) -> Result<Vec<Database
         .query(
             "SELECT name \
              FROM sys.databases \
-             WHERE database_id > 4 \
-               AND state = 0 \
+             WHERE state = 0 \
              ORDER BY name",
             &[],
         )