queryer merger test progress

src/database/stem.rs

@@ -0,0 +1,17 @@
+use crate::database::schema::Schema;
+use serde::{Deserialize, Serialize};
+use std::sync::Arc;
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Stem {
+  pub r#type: String,
+  #[serde(skip_serializing_if = "Option::is_none")]
+  pub relation: Option<String>,
+
+  // The actual database schema node mapping for
+  // O(1) jump table execution for queryer.
+  //
+  // Automatically skipped from `jspg_stems()` JSON payload output.
+  #[serde(skip)]
+  pub schema: Arc<Schema>,
+}