version: 1.0.71

.vscode/extensions.json

@@ -0,0 +1,5 @@
+{
+    "recommendations": [
+        "rust-lang.rust-analyzer"
+    ]
+}

GEMINI.md

@@ -43,7 +43,7 @@ JSPG implements specific extensions to the Draft 2020-12 standard to support the
 #### A. Polymorphism & Referencing (`$ref`, `$family`, and Native Types)
 *   **Native Type Discrimination (`variations`)**: Schemas defined inside a Postgres `type` are Entities. The validator securely and implicitly manages their `"type"` property. If an entity inherits from `user`, incoming JSON can safely define `{"type": "person"}` without errors, thanks to `compiled_variations` inheritance.
 *   **Structural Inheritance & Viral Infection (`$ref`)**: `$ref` is used exclusively for structural inheritance, *never* for union creation. A Punc request schema that `$ref`s an Entity virally inherits all physical database polymorphism rules for that target.
-*   **Shape Polymorphism (`$family`)**: Auto-expands polymorphic API lists based on an abstract Descendants Graph. If `{"$family": "widget"}` is used, JSPG evaluates the JSON against every schema that `$ref`s widget.
+*   **Shape Polymorphism (`$family`)**: Auto-expands polymorphic API lists based on an abstract **Descendants Graph**. If `{"$family": "widget"}` is used, the Validator dynamically identifies *every* schema in the registry that `$ref`s `widget` (e.g., `stock.widget`, `task.widget`) and evaluates the JSON against all of them.
 *   **Strict Matches & Depth Heuristic**: Polymorphic structures MUST match exactly **one** schema permutation. If multiple inherited struct permutations pass, JSPG applies the **Depth Heuristic Tie-Breaker**, selecting the candidate deepest in the inheritance tree. 
 
 #### B. Dot-Notation Schema Resolution & Database Mapping
@@ -103,6 +103,10 @@ The Queryer transforms Postgres into a pre-compiled Semantic Query Engine via th
     *   **Array Inclusion**: `{"$in": [values]}`, `{"$nin": [values]}` use native `jsonb_array_elements_text()` bindings to enforce `IN` and `NOT IN` logic without runtime SQL injection risks.
     *   **Text Matching (ILIKE)**: Evaluates `$eq` or `$ne` against string fields containing the `%` character natively into Postgres `ILIKE` and `NOT ILIKE` partial substring matches.
     *   **Type Casting**: Safely resolves dynamic combinations by casting values instantly into the physical database types mapped in the schema (e.g. parsing `uuid` bindings to `::uuid`, formatting DateTimes to `::timestamptz`, and numbers to `::numeric`).
+*   **Polymorphic SQL Generation (`$family`)**: Compiles `$family` properties by analyzing the **Physical Database Variations**, *not* the schema descendants.
+    *   **The Dot Convention**: When a schema requests `$family: "target.schema"`, the compiler extracts the base type (e.g. `schema`) and looks up its Physical Table definition.
+    *   **Multi-Table Branching**: If the Physical Table is a parent to other tables (e.g. `organization` has variations `["organization", "bot", "person"]`), the compiler generates a dynamic `CASE WHEN type = '...' THEN ...` query, expanding into `JOIN`s for each variation.
+    *   **Single-Table Bypass**: If the Physical Table is a leaf node with only one variation (e.g. `person` has variations `["person"]`), the compiler cleanly bypasses `CASE` generation and compiles a simple `SELECT` across the base table, as all schema extensions (e.g. `light.person`, `full.person`) are guaranteed to reside in the exact same physical row.
 
 ### The Stem Engine
 

src/database/mod.rs

@@ -32,7 +32,7 @@ pub struct Database {
   pub enums: HashMap<String, Enum>,
   pub types: HashMap<String, Type>,
   pub puncs: HashMap<String, Punc>,
-  pub relations: HashMap<String, Relation>,
+  pub relations: HashMap<(String, String), Vec<Relation>>,
   pub schemas: HashMap<String, Schema>,
   // Map of Schema ID -> { Entity Type -> Target Subschema Arc }
   pub stems: HashMap<String, HashMap<String, Arc<Stem>>>,
@@ -74,11 +74,12 @@ impl Database {
       }
     }
 
+    let mut raw_relations = Vec::new();
     if let Some(arr) = val.get("relations").and_then(|v| v.as_array()) {
       for item in arr {
         match serde_json::from_value::<Relation>(item.clone()) {
           Ok(def) => {
-            db.relations.insert(def.constraint.clone(), def);
+            raw_relations.push(def);
           }
           Err(e) => println!("DATABASE RELATION PARSE FAILED: {:?}", e),
         }
@@ -107,7 +108,7 @@ impl Database {
       }
     }
 
-    db.compile()?;
+    db.compile(raw_relations)?;
     Ok(db)
   }
 
@@ -138,10 +139,11 @@ impl Database {
   }
 
   /// Organizes the graph of the database, compiling regex, format functions, and caching relationships.
-  pub fn compile(&mut self) -> Result<(), crate::drop::Drop> {
+  pub fn compile(&mut self, raw_relations: Vec<Relation>) -> Result<(), crate::drop::Drop> {
     self.collect_schemas();
     self.collect_depths();
     self.collect_descendants();
+    self.collect_relations(raw_relations);
     self.compile_schemas();
     self.collect_stems()?;
 
@@ -226,6 +228,95 @@ impl Database {
     self.descendants = descendants;
   }
 
+  fn collect_relations(&mut self, raw_relations: Vec<Relation>) {
+    let mut edges: HashMap<(String, String), Vec<Relation>> = HashMap::new();
+
+    // For every relation, map it across all polymorphic inheritance permutations
+    for relation in raw_relations {
+      if let Some(_source_type_def) = self.types.get(&relation.source_type) {
+        if let Some(_dest_type_def) = self.types.get(&relation.destination_type) {
+          let mut src_descendants = Vec::new();
+          let mut dest_descendants = Vec::new();
+
+          for (t_name, t_def) in &self.types {
+            if t_def.hierarchy.contains(&relation.source_type) {
+              src_descendants.push(t_name.clone());
+            }
+            if t_def.hierarchy.contains(&relation.destination_type) {
+              dest_descendants.push(t_name.clone());
+            }
+          }
+
+          for p_type in &src_descendants {
+            for c_type in &dest_descendants {
+              // Ignore entity <-> entity generic fallbacks, they aren't useful edges
+              if p_type == "entity" && c_type == "entity" {
+                continue;
+              }
+
+              // Forward edge
+              edges
+                .entry((p_type.clone(), c_type.clone()))
+                .or_default()
+                .push(relation.clone());
+
+              // Reverse edge (only if types are different to avoid duplicating self-referential edges like activity parent_id)
+              if p_type != c_type {
+                edges
+                  .entry((c_type.clone(), p_type.clone()))
+                  .or_default()
+                  .push(relation.clone());
+              }
+            }
+          }
+        }
+      }
+    }
+    self.relations = edges;
+  }
+
+  pub fn get_relation(
+    &self,
+    parent_type: &str,
+    child_type: &str,
+    prop_name: &str,
+    relative_keys: Option<&Vec<String>>,
+  ) -> Option<&Relation> {
+    if let Some(relations) = self
+      .relations
+      .get(&(parent_type.to_string(), child_type.to_string()))
+    {
+      if relations.len() == 1 {
+        return Some(&relations[0]);
+      }
+
+      // Reduce ambiguity with prefix
+      for rel in relations {
+        if let Some(prefix) = &rel.prefix {
+          if prefix == prop_name {
+            return Some(rel);
+          }
+        }
+      }
+
+      // Reduce ambiguity by checking if relative payload OMITS the prefix (M:M heuristic)
+      if let Some(keys) = relative_keys {
+        let mut missing_prefix_rels = Vec::new();
+        for rel in relations {
+          if let Some(prefix) = &rel.prefix {
+            if !keys.contains(prefix) {
+              missing_prefix_rels.push(rel);
+            }
+          }
+        }
+        if missing_prefix_rels.len() == 1 {
+          return Some(missing_prefix_rels[0]);
+        }
+      }
+    }
+    None
+  }
+
   fn collect_descendants_recursively(
     target: &str,
     direct_refs: &HashMap<String, Vec<String>>,
@@ -335,17 +426,14 @@ impl Database {
       if let (Some(pt), Some(prop)) = (&parent_type, &property_name) {
         let expected_col = format!("{}_id", prop);
         let mut found = false;
-        for rel in db.relations.values() {
-          if (rel.source_type == *pt && rel.destination_type == entity_type)
-            || (rel.source_type == entity_type && rel.destination_type == *pt)
-          {
-            if rel.source_columns.contains(&expected_col) {
-              relation_col = Some(expected_col.clone());
-              found = true;
-              break;
-            }
+
+        if let Some(rel) = db.get_relation(pt, &entity_type, prop, None) {
+          if rel.source_columns.contains(&expected_col) {
+            relation_col = Some(expected_col.clone());
+            found = true;
           }
         }
+
         if !found {
           relation_col = Some(expected_col);
         }

src/merger/mod.rs

@@ -21,15 +21,12 @@ impl Merger {
   }
 
   pub fn merge(&self, data: Value) -> crate::drop::Drop {
-    let mut val_resolved = Value::Null;
     let mut notifications_queue = Vec::new();
-    
+
     let result = self.merge_internal(data, &mut notifications_queue);
 
-    match result {
-      Ok(val) => {
-        val_resolved = val;
-      }
+    let val_resolved = match result {
+      Ok(val) => val,
       Err(msg) => {
         return crate::drop::Drop::with_errors(vec![crate::drop::Error {
           code: "MERGE_FAILED".to_string(),
@@ -44,7 +41,7 @@ impl Merger {
       }
     };
 
-    // Execute the globally collected, pre-ordered notifications last! 
+    // Execute the globally collected, pre-ordered notifications last!
     for notify_sql in notifications_queue {
       if let Err(e) = self.db.execute(&notify_sql, None) {
         return crate::drop::Drop::with_errors(vec![crate::drop::Error {
@@ -88,7 +85,11 @@ impl Merger {
     crate::drop::Drop::success_with_val(stripped_val)
   }
 
-  pub(crate) fn merge_internal(&self, data: Value, notifications: &mut Vec<String>) -> Result<Value, String> {
+  pub(crate) fn merge_internal(
+    &self,
+    data: Value,
+    notifications: &mut Vec<String>,
+  ) -> Result<Value, String> {
     match data {
       Value::Array(items) => self.merge_array(items, notifications),
       Value::Object(map) => self.merge_object(map, notifications),
@@ -96,7 +97,11 @@ impl Merger {
     }
   }
 
-  fn merge_array(&self, items: Vec<Value>, notifications: &mut Vec<String>) -> Result<Value, String> {
+  fn merge_array(
+    &self,
+    items: Vec<Value>,
+    notifications: &mut Vec<String>,
+  ) -> Result<Value, String> {
     let mut resolved_items = Vec::new();
     for item in items {
       let resolved = self.merge_internal(item, notifications)?;
@@ -105,7 +110,11 @@ impl Merger {
     Ok(Value::Array(resolved_items))
   }
 
-  fn merge_object(&self, obj: serde_json::Map<String, Value>, notifications: &mut Vec<String>) -> Result<Value, String> {
+  fn merge_object(
+    &self,
+    obj: serde_json::Map<String, Value>,
+    notifications: &mut Vec<String>,
+  ) -> Result<Value, String> {
     let queue_start = notifications.len();
 
     let type_name = match obj.get("type").and_then(|v| v.as_str()) {
@@ -164,7 +173,21 @@ impl Merger {
         _ => continue,
       };
 
-      let relative_relation = self.get_entity_relation(type_def, &relative, &relation_name)?;
+      // Attempt to extract relative object type name
+      let relative_type_name = match relative.get("type").and_then(|v| v.as_str()) {
+        Some(t) => t,
+        None => continue,
+      };
+
+      let relative_keys: Vec<String> = relative.keys().cloned().collect();
+
+      // Call central Database O(1) graph logic
+      let relative_relation = self.db.get_relation(
+        &type_def.name,
+        relative_type_name,
+        &relation_name,
+        Some(&relative_keys),
+      );
 
       if let Some(relation) = relative_relation {
         let parent_is_source = type_def.hierarchy.contains(&relation.source_type);
@@ -253,7 +276,21 @@ impl Merger {
         _ => continue,
       };
 
-      let relative_relation = self.get_entity_relation(type_def, first_relative, &relation_name)?;
+      // Attempt to extract relative object type name
+      let relative_type_name = match first_relative.get("type").and_then(|v| v.as_str()) {
+        Some(t) => t,
+        None => continue,
+      };
+
+      let relative_keys: Vec<String> = first_relative.keys().cloned().collect();
+
+      // Call central Database O(1) graph logic
+      let relative_relation = self.db.get_relation(
+        &type_def.name,
+        relative_type_name,
+        &relation_name,
+        Some(&relative_keys),
+      );
 
       if let Some(relation) = relative_relation {
         let mut relative_responses = Vec::new();
@@ -272,10 +309,11 @@ impl Merger {
               &entity_fields,
             );
 
-            let merged_relative = match self.merge_internal(Value::Object(relative_item), notifications)? {
-              Value::Object(m) => m,
-              _ => continue,
-            };
+            let merged_relative =
+              match self.merge_internal(Value::Object(relative_item), notifications)? {
+                Value::Object(m) => m,
+                _ => continue,
+              };
 
             relative_responses.push(Value::Object(merged_relative));
           }
@@ -766,101 +804,7 @@ impl Merger {
     changes
   }
 
-  fn reduce_entity_relations(
-    &self,
-    mut matching_relations: Vec<crate::database::relation::Relation>,
-    relative: &serde_json::Map<String, Value>,
-    relation_name: &str,
-  ) -> Result<Option<crate::database::relation::Relation>, String> {
-    if matching_relations.is_empty() {
-      return Ok(None);
-    }
-    if matching_relations.len() == 1 {
-      return Ok(Some(matching_relations.pop().unwrap()));
-    }
-
-    let exact_match: Vec<_> = matching_relations
-      .iter()
-      .filter(|r| r.prefix.as_deref() == Some(relation_name))
-      .cloned()
-      .collect();
-    if exact_match.len() == 1 {
-      return Ok(Some(exact_match.into_iter().next().unwrap()));
-    }
-
-    matching_relations.retain(|r| {
-      if let Some(prefix) = &r.prefix {
-        !relative.contains_key(prefix)
-      } else {
-        true
-      }
-    });
-
-    if matching_relations.len() == 1 {
-      Ok(Some(matching_relations.pop().unwrap()))
-    } else {
-      let constraints: Vec<_> = matching_relations
-        .iter()
-        .map(|r| r.constraint.clone())
-        .collect();
-      Err(format!(
-        "AMBIGUOUS_TYPE_RELATIONS: Could not reduce ambiguous type relations: {}",
-        constraints.join(", ")
-      ))
-    }
-  }
-
-  fn get_entity_relation(
-    &self,
-    entity_type: &crate::database::r#type::Type,
-    relative: &serde_json::Map<String, Value>,
-    relation_name: &str,
-  ) -> Result<Option<crate::database::relation::Relation>, String> {
-    let relative_type_name = match relative.get("type").and_then(|v| v.as_str()) {
-      Some(t) => t,
-      None => return Ok(None),
-    };
-
-    let relative_type = match self.db.types.get(relative_type_name) {
-      Some(t) => t,
-      None => return Ok(None),
-    };
-
-    let mut relative_relations: Vec<crate::database::relation::Relation> = Vec::new();
-
-    for r in self.db.relations.values() {
-      if r.source_type != "entity" && r.destination_type != "entity" {
-        let condition1 = relative_type.hierarchy.contains(&r.source_type)
-          && entity_type.hierarchy.contains(&r.destination_type);
-        let condition2 = entity_type.hierarchy.contains(&r.source_type)
-          && relative_type.hierarchy.contains(&r.destination_type);
-
-        if condition1 || condition2 {
-          relative_relations.push(r.clone());
-        }
-      }
-    }
-
-    let mut relative_relation =
-      self.reduce_entity_relations(relative_relations, relative, relation_name)?;
-
-    if relative_relation.is_none() {
-      let mut poly_relations: Vec<crate::database::relation::Relation> = Vec::new();
-      for r in self.db.relations.values() {
-        if r.destination_type == "entity" {
-          let condition1 = relative_type.hierarchy.contains(&r.source_type);
-          let condition2 = entity_type.hierarchy.contains(&r.source_type);
-
-          if condition1 || condition2 {
-            poly_relations.push(r.clone());
-          }
-        }
-      }
-      relative_relation = self.reduce_entity_relations(poly_relations, relative, relation_name)?;
-    }
-
-    Ok(relative_relation)
-  }
+  // Helper Functions
 
   fn apply_entity_relation(
     source_entity: &mut serde_json::Map<String, Value>,

src/queryer/compiler.rs

@@ -47,7 +47,19 @@ impl SqlCompiler {
 
     // We expect the top level to typically be an Object or Array
     let is_stem_query = stem_path.is_some();
-    let (sql, _) = self.walk_schema(target_schema, "t1", None, filter_keys, is_stem_query, 0, String::new())?;
+    let mut alias_counter: usize = 0;
+    let (sql, _) = self.walk_schema(
+      target_schema,
+      "t1",
+      None,
+      None,
+      None,
+      filter_keys,
+      is_stem_query,
+      0,
+      String::new(),
+      &mut alias_counter,
+    )?;
     Ok(sql)
   }
 
@@ -57,11 +69,14 @@ impl SqlCompiler {
     &self,
     schema: &crate::database::schema::Schema,
     parent_alias: &str,
+    parent_table_aliases: Option<&std::collections::HashMap<String, String>>,
+    parent_type_def: Option<&crate::database::r#type::Type>,
     prop_name_context: Option<&str>,
     filter_keys: &[String],
     is_stem_query: bool,
     depth: usize,
     current_path: String,
+    alias_counter: &mut usize,
   ) -> Result<(String, String), String> {
     // Determine the base schema type (could be an array, object, or literal)
     match &schema.obj.type_ {
@@ -80,23 +95,29 @@ impl SqlCompiler {
                 items,
                 type_def,
                 parent_alias,
+                parent_table_aliases,
+                parent_type_def,
                 prop_name_context,
                 true,
                 filter_keys,
                 is_stem_query,
                 depth,
                 next_path,
+                alias_counter,
               );
             }
           }
           let (item_sql, _) = self.walk_schema(
             items,
             parent_alias,
+            parent_table_aliases,
+            parent_type_def,
             prop_name_context,
             filter_keys,
             is_stem_query,
             depth + 1,
             next_path,
+            alias_counter,
           )?;
           return Ok((
             format!("(SELECT jsonb_agg({}) FROM TODO)", item_sql),
@@ -125,12 +146,15 @@ impl SqlCompiler {
             schema,
             type_def,
             parent_alias,
+            parent_table_aliases,
+            parent_type_def,
             prop_name_context,
             false,
             filter_keys,
             is_stem_query,
             depth,
             current_path,
+            alias_counter,
           );
         }
 
@@ -141,40 +165,63 @@ impl SqlCompiler {
             return self.walk_schema(
               target_schema,
               parent_alias,
+              parent_table_aliases,
+              parent_type_def,
               prop_name_context,
               filter_keys,
               is_stem_query,
               depth,
               current_path,
+              alias_counter,
             );
           }
           return Err(format!("Unresolved $ref: {}", ref_id));
         }
         // Handle $family Polymorphism fallbacks for relations
         if let Some(family_target) = &schema.obj.family {
-          let mut all_targets = vec![family_target.clone()];
-          if let Some(schema_id) = &schema.obj.id {
-            if let Some(descendants) = self.db.descendants.get(schema_id) {
-              all_targets.extend(descendants.clone());
+          let base_type_name = family_target.split('.').next_back().unwrap_or(family_target).to_string();
+          
+          if let Some(type_def) = self.db.types.get(&base_type_name) {
+            if type_def.variations.len() == 1 {
+              let mut bypass_schema = crate::database::schema::Schema::default();
+              bypass_schema.obj.r#ref = Some(family_target.clone());
+              return self.walk_schema(
+                &std::sync::Arc::new(bypass_schema),
+                parent_alias,
+                parent_table_aliases,
+                parent_type_def,
+                prop_name_context,
+                filter_keys,
+                is_stem_query,
+                depth,
+                current_path,
+                alias_counter,
+              );
             }
-          }
 
-          let mut family_schemas = Vec::new();
-          for target in all_targets {
-            let mut ref_schema = crate::database::schema::Schema::default();
-            ref_schema.obj.r#ref = Some(target);
-            family_schemas.push(std::sync::Arc::new(ref_schema));
-          }
+            let mut sorted_variations: Vec<String> = type_def.variations.iter().cloned().collect();
+            sorted_variations.sort();
 
-          return self.compile_one_of(
-            &family_schemas,
-            parent_alias,
-            prop_name_context,
-            filter_keys,
-            is_stem_query,
-            depth,
-            current_path,
-          );
+            let mut family_schemas = Vec::new();
+            for variation in &sorted_variations {
+              let mut ref_schema = crate::database::schema::Schema::default();
+              ref_schema.obj.r#ref = Some(variation.clone());
+              family_schemas.push(std::sync::Arc::new(ref_schema));
+            }
+
+            return self.compile_one_of(
+              &family_schemas,
+              parent_alias,
+              parent_table_aliases,
+              parent_type_def,
+              prop_name_context,
+              filter_keys,
+              is_stem_query,
+              depth,
+              current_path,
+              alias_counter,
+            );
+          }
         }
 
         // Handle oneOf Polymorphism fallbacks for relations
@@ -182,11 +229,14 @@ impl SqlCompiler {
           return self.compile_one_of(
             one_of,
             parent_alias,
+            parent_table_aliases,
+            parent_type_def,
             prop_name_context,
             filter_keys,
             is_stem_query,
             depth,
             current_path,
+            alias_counter,
           );
         }
 
@@ -195,10 +245,13 @@ impl SqlCompiler {
           return self.compile_inline_object(
             props,
             parent_alias,
+            parent_table_aliases,
+            parent_type_def,
             filter_keys,
             is_stem_query,
             depth,
             current_path,
+            alias_counter,
           );
         }
 
@@ -241,17 +294,18 @@ impl SqlCompiler {
     schema: &crate::database::schema::Schema,
     type_def: &crate::database::r#type::Type,
     parent_alias: &str,
+    parent_table_aliases: Option<&std::collections::HashMap<String, String>>,
+    parent_type_def: Option<&crate::database::r#type::Type>,
     prop_name: Option<&str>,
     is_array: bool,
     filter_keys: &[String],
     is_stem_query: bool,
     depth: usize,
     current_path: String,
+    alias_counter: &mut usize,
   ) -> Result<(String, String), String> {
-    let local_ctx = format!("{}_{}", parent_alias, prop_name.unwrap_or("obj"));
-
     // 1. Build FROM clauses and table aliases
-    let (table_aliases, from_clauses) = self.build_hierarchy_from_clauses(type_def, &local_ctx);
+    let (table_aliases, from_clauses) = self.build_hierarchy_from_clauses(type_def, alias_counter);
 
     // 2. Map properties and build jsonb_build_object args
     let mut select_args = self.map_properties_to_aliases(
@@ -263,39 +317,79 @@ impl SqlCompiler {
       is_stem_query,
       depth,
       &current_path,
+      alias_counter,
     )?;
 
     // 2.5 Inject polymorphism directly into the query object
     if let Some(family_target) = &schema.obj.family {
-      let mut family_schemas = Vec::new();
-      if let Some(base_type) = self.db.types.get(family_target) {
-        let mut sorted_targets: Vec<String> = base_type.variations.iter().cloned().collect();
-        // Ensure the base type is included if not listed in variations by default
-        if !sorted_targets.contains(family_target) {
-            sorted_targets.push(family_target.clone());
-        }
-        sorted_targets.sort();
-        
-        for target in sorted_targets {
-          let mut ref_schema = crate::database::schema::Schema::default();
-          ref_schema.obj.r#ref = Some(target);
-          family_schemas.push(std::sync::Arc::new(ref_schema));
-        }
-      } else {
-        // Fallback for types not strictly defined in physical DB
-        let mut ref_schema = crate::database::schema::Schema::default();
-        ref_schema.obj.r#ref = Some(family_target.clone());
-        family_schemas.push(std::sync::Arc::new(ref_schema));
-      }
+      let base_type_name = family_target.split('.').next_back().unwrap_or(family_target).to_string();
 
-      let base_alias = table_aliases.get(&type_def.name).cloned().unwrap_or_else(|| parent_alias.to_string());
-      select_args.push(format!("'id', {}.id", base_alias));
-      let (case_sql, _) = self.compile_one_of(&family_schemas, &base_alias, None, filter_keys, is_stem_query, depth, current_path.clone())?;
-      select_args.push(format!("'type', {}", case_sql));
+      if let Some(fam_type_def) = self.db.types.get(&base_type_name) {
+        if fam_type_def.variations.len() == 1 {
+            let mut bypass_schema = crate::database::schema::Schema::default();
+            bypass_schema.obj.r#ref = Some(family_target.clone());
+            
+            let mut bypassed_args = self.map_properties_to_aliases(
+              &bypass_schema,
+              type_def,
+              &table_aliases,
+              parent_alias,
+              filter_keys,
+              is_stem_query,
+              depth,
+              &current_path,
+              alias_counter,
+            )?;
+            select_args.append(&mut bypassed_args);
+        } else {
+            let mut family_schemas = Vec::new();
+            let mut sorted_fam_variations: Vec<String> = fam_type_def.variations.iter().cloned().collect();
+            sorted_fam_variations.sort();
+
+            for variation in &sorted_fam_variations {
+              let mut ref_schema = crate::database::schema::Schema::default();
+              ref_schema.obj.r#ref = Some(variation.clone());
+              family_schemas.push(std::sync::Arc::new(ref_schema));
+            }
+
+            let base_alias = table_aliases
+              .get(&type_def.name)
+              .cloned()
+              .unwrap_or_else(|| parent_alias.to_string());
+            select_args.push(format!("'id', {}.id", base_alias));
+            let (case_sql, _) = self.compile_one_of(
+              &family_schemas,
+              &base_alias,
+              Some(&table_aliases),
+              parent_type_def,
+              None,
+              filter_keys,
+              is_stem_query,
+              depth,
+              current_path.clone(),
+              alias_counter,
+            )?;
+            select_args.push(format!("'type', {}", case_sql));
+        }
+      }
     } else if let Some(one_of) = &schema.obj.one_of {
-      let base_alias = table_aliases.get(&type_def.name).cloned().unwrap_or_else(|| parent_alias.to_string());
+      let base_alias = table_aliases
+        .get(&type_def.name)
+        .cloned()
+        .unwrap_or_else(|| parent_alias.to_string());
       select_args.push(format!("'id', {}.id", base_alias));
-      let (case_sql, _) = self.compile_one_of(one_of, &base_alias, None, filter_keys, is_stem_query, depth, current_path.clone())?;
+      let (case_sql, _) = self.compile_one_of(
+        one_of,
+        &base_alias,
+        Some(&table_aliases),
+        parent_type_def,
+        None,
+        filter_keys,
+        is_stem_query,
+        depth,
+        current_path.clone(),
+        alias_counter,
+      )?;
       select_args.push(format!("'type', {}", case_sql));
     }
 
@@ -311,6 +405,8 @@ impl SqlCompiler {
       type_def,
       &table_aliases,
       parent_alias,
+      parent_table_aliases,
+      parent_type_def,
       prop_name,
       filter_keys,
       &current_path,
@@ -342,19 +438,20 @@ impl SqlCompiler {
   fn build_hierarchy_from_clauses(
     &self,
     type_def: &crate::database::r#type::Type,
-    local_ctx: &str,
+    alias_counter: &mut usize,
   ) -> (std::collections::HashMap<String, String>, Vec<String>) {
     let mut table_aliases = std::collections::HashMap::new();
     let mut from_clauses = Vec::new();
 
     for (i, table_name) in type_def.hierarchy.iter().enumerate() {
-      let alias = format!("{}_t{}", local_ctx, i + 1);
+      *alias_counter += 1;
+      let alias = format!("{}_{}", table_name, alias_counter);
       table_aliases.insert(table_name.clone(), alias.clone());
 
       if i == 0 {
         from_clauses.push(format!("agreego.{} {}", table_name, alias));
       } else {
-        let prev_alias = format!("{}_t{}", local_ctx, i);
+        let prev_alias = format!("{}_{}", type_def.hierarchy[i - 1], *alias_counter - 1);
         from_clauses.push(format!(
           "JOIN agreego.{} {} ON {}.id = {}.id",
           table_name, alias, alias, prev_alias
@@ -374,12 +471,16 @@ impl SqlCompiler {
     is_stem_query: bool,
     depth: usize,
     current_path: &str,
+    alias_counter: &mut usize,
   ) -> Result<Vec<String>, String> {
     let mut select_args = Vec::new();
     let grouped_fields = type_def.grouped_fields.as_ref().and_then(|v| v.as_object());
     let merged_props = self.get_merged_properties(schema);
+    let mut sorted_keys: Vec<&String> = merged_props.keys().collect();
+    sorted_keys.sort();
 
-    for (prop_key, prop_schema) in &merged_props {
+    for prop_key in sorted_keys {
+      let prop_schema = &merged_props[prop_key];
       let mut owner_alias = table_aliases
         .get("entity")
         .cloned()
@@ -400,16 +501,20 @@ impl SqlCompiler {
       }
 
       let is_object_or_array = match &prop_schema.obj.type_ {
-          Some(crate::database::schema::SchemaTypeOrArray::Single(s)) => s == "object" || s == "array",
-          Some(crate::database::schema::SchemaTypeOrArray::Multiple(v)) => v.contains(&"object".to_string()) || v.contains(&"array".to_string()),
-          _ => false
+        Some(crate::database::schema::SchemaTypeOrArray::Single(s)) => {
+          s == "object" || s == "array"
+        }
+        Some(crate::database::schema::SchemaTypeOrArray::Multiple(v)) => {
+          v.contains(&"object".to_string()) || v.contains(&"array".to_string())
+        }
+        _ => false,
       };
 
-      let is_primitive = prop_schema.obj.r#ref.is_none() 
-          && prop_schema.obj.items.is_none()
-          && prop_schema.obj.properties.is_none()
-          && prop_schema.obj.one_of.is_none()
-          && !is_object_or_array;
+      let is_primitive = prop_schema.obj.r#ref.is_none()
+        && prop_schema.obj.items.is_none()
+        && prop_schema.obj.properties.is_none()
+        && prop_schema.obj.one_of.is_none()
+        && !is_object_or_array;
 
       if is_primitive {
         if let Some(ft) = type_def.field_types.as_ref().and_then(|v| v.as_object()) {
@@ -428,11 +533,14 @@ impl SqlCompiler {
       let (val_sql, val_type) = self.walk_schema(
         prop_schema,
         &owner_alias,
+        Some(table_aliases),
+        Some(type_def), // Pass current type_def as parent_type_def for child properties
         Some(prop_key),
         filter_keys,
         is_stem_query,
         depth + 1,
         next_path,
+        alias_counter,
       )?;
 
       if val_type != "abort" {
@@ -448,6 +556,8 @@ impl SqlCompiler {
     type_def: &crate::database::r#type::Type,
     table_aliases: &std::collections::HashMap<String, String>,
     parent_alias: &str,
+    parent_table_aliases: Option<&std::collections::HashMap<String, String>>,
+    parent_type_def: Option<&crate::database::r#type::Type>,
     prop_name: Option<&str>,
     filter_keys: &[String],
     current_path: &str,
@@ -491,115 +601,171 @@ impl SqlCompiler {
       let mut filter_alias = base_alias.clone();
 
       if let Some(gf) = type_def.grouped_fields.as_ref().and_then(|v| v.as_object()) {
-          for (t_name, fields_val) in gf {
-            if let Some(fields_arr) = fields_val.as_array() {
-              if fields_arr.iter().any(|v| v.as_str() == Some(field_name)) {
-                filter_alias = table_aliases
-                  .get(t_name)
-                  .cloned()
-                  .unwrap_or_else(|| base_alias.clone());
-                break;
+        for (t_name, fields_val) in gf {
+          if let Some(fields_arr) = fields_val.as_array() {
+            if fields_arr.iter().any(|v| v.as_str() == Some(field_name)) {
+              filter_alias = table_aliases
+                .get(t_name)
+                .cloned()
+                .unwrap_or_else(|| base_alias.clone());
+              break;
+            }
+          }
+        }
+      }
+
+      let mut is_ilike = false;
+      let mut cast = "";
+
+      if let Some(field_types) = type_def.field_types.as_ref().and_then(|v| v.as_object()) {
+        if let Some(pg_type_val) = field_types.get(field_name) {
+          if let Some(pg_type) = pg_type_val.as_str() {
+            if pg_type == "uuid" {
+              cast = "::uuid";
+            } else if pg_type == "boolean" || pg_type == "bool" {
+              cast = "::boolean";
+            } else if pg_type.contains("timestamp") || pg_type == "timestamptz" || pg_type == "date"
+            {
+              cast = "::timestamptz";
+            } else if pg_type == "numeric"
+              || pg_type.contains("int")
+              || pg_type == "real"
+              || pg_type == "double precision"
+            {
+              cast = "::numeric";
+            } else if pg_type == "text" || pg_type.contains("char") {
+              let mut is_enum = false;
+              if let Some(props) = &schema.obj.properties {
+                if let Some(ps) = props.get(field_name) {
+                  is_enum = ps.obj.enum_.is_some();
+                }
+              }
+              if !is_enum {
+                is_ilike = true;
               }
             }
           }
         }
+      }
 
-        let mut is_ilike = false;
-        let mut cast = "";
+      let param_index = i + 1;
+      let p_val = format!("${}#>>'{{}}'", param_index);
 
-        if let Some(field_types) = type_def.field_types.as_ref().and_then(|v| v.as_object()) {
-          if let Some(pg_type_val) = field_types.get(field_name) {
-            if let Some(pg_type) = pg_type_val.as_str() {
-              if pg_type == "uuid" {
-                cast = "::uuid";
-              } else if pg_type == "boolean" || pg_type == "bool" {
-                cast = "::boolean";
-              } else if pg_type.contains("timestamp")
-                || pg_type == "timestamptz"
-                || pg_type == "date"
-              {
-                cast = "::timestamptz";
-              } else if pg_type == "numeric"
-                || pg_type.contains("int")
-                || pg_type == "real"
-                || pg_type == "double precision"
-              {
-                cast = "::numeric";
-              } else if pg_type == "text" || pg_type.contains("char") {
-                let mut is_enum = false;
-                if let Some(props) = &schema.obj.properties {
-                  if let Some(ps) = props.get(field_name) {
-                    is_enum = ps.obj.enum_.is_some();
-                  }
-                }
-                if !is_enum {
-                  is_ilike = true;
-                }
-              }
+      if op == "$in" || op == "$nin" {
+        let sql_op = if op == "$in" { "IN" } else { "NOT IN" };
+        let subquery = format!(
+          "(SELECT value{} FROM jsonb_array_elements_text(({})::jsonb))",
+          cast, p_val
+        );
+        where_clauses.push(format!(
+          "{}.{} {} {}",
+          filter_alias, field_name, sql_op, subquery
+        ));
+      } else {
+        let sql_op = match op {
+          "$eq" => {
+            if is_ilike {
+              "ILIKE"
+            } else {
+              "="
             }
           }
-        }
+          "$ne" => {
+            if is_ilike {
+              "NOT ILIKE"
+            } else {
+              "!="
+            }
+          }
+          "$gt" => ">",
+          "$gte" => ">=",
+          "$lt" => "<",
+          "$lte" => "<=",
+          _ => {
+            if is_ilike {
+              "ILIKE"
+            } else {
+              "="
+            }
+          }
+        };
 
-        let param_index = i + 1;
-        let p_val = format!("${}#>>'{{}}'", param_index);
-
-        if op == "$in" || op == "$nin" {
-          let sql_op = if op == "$in" { "IN" } else { "NOT IN" };
-          let subquery = format!(
-            "(SELECT value{} FROM jsonb_array_elements_text(({})::jsonb))",
-            cast, p_val
-          );
-          where_clauses.push(format!(
-            "{}.{} {} {}",
-            filter_alias, field_name, sql_op, subquery
-          ));
+        let param_sql = if is_ilike && (op == "$eq" || op == "$ne") {
+          p_val
         } else {
-          let sql_op = match op {
-            "$eq" => {
-              if is_ilike {
-                "ILIKE"
-              } else {
-                "="
-              }
-            }
-            "$ne" => {
-              if is_ilike {
-                "NOT ILIKE"
-              } else {
-                "!="
-              }
-            }
-            "$gt" => ">",
-            "$gte" => ">=",
-            "$lt" => "<",
-            "$lte" => "<=",
-            _ => {
-              if is_ilike {
-                "ILIKE"
-              } else {
-                "="
-              }
-            }
-          };
+          format!("({}){}", p_val, cast)
+        };
 
-          let param_sql = if is_ilike && (op == "$eq" || op == "$ne") {
-            p_val
-          } else {
-            format!("({}){}", p_val, cast)
-          };
-
-          where_clauses.push(format!(
-            "{}.{} {} {}",
-            filter_alias, field_name, sql_op, param_sql
-          ));
+        where_clauses.push(format!(
+          "{}.{} {} {}",
+          filter_alias, field_name, sql_op, param_sql
+        ));
       }
     }
 
     if let Some(prop) = prop_name {
-      if prop == "target" || prop == "source" {
-        where_clauses.push(format!("{}.id = {}.{}_id", base_alias, parent_alias, prop));
-      } else {
-        where_clauses.push(format!("{}.parent_id = {}.id", base_alias, parent_alias));
+      // Find what type the parent alias is actually mapping to
+      let mut relation_alias = parent_alias.to_string();
+
+      let mut relation_resolved = false;
+      if let Some(parent_type) = parent_type_def {
+        if let Some(relation) = self
+          .db
+          .get_relation(&parent_type.name, &type_def.name, prop, None)
+        {
+          let source_col = &relation.source_columns[0];
+          let dest_col = &relation.destination_columns[0];
+
+          let mut possible_relation_alias = None;
+          if let Some(pta) = parent_table_aliases {
+            if let Some(a) = pta.get(&relation.source_type) {
+              possible_relation_alias = Some(a.clone());
+            } else if let Some(a) = pta.get(&relation.destination_type) {
+              possible_relation_alias = Some(a.clone());
+            }
+          }
+          if let Some(pa) = possible_relation_alias {
+            relation_alias = pa;
+          }
+
+          // Determine directionality based on the Relation metadata
+          if relation.source_type == parent_type.name
+            || parent_type.hierarchy.contains(&relation.source_type)
+          {
+            // Parent is the source
+            where_clauses.push(format!(
+              "{}.{} = {}.{}",
+              relation_alias, source_col, base_alias, dest_col
+            ));
+            relation_resolved = true;
+          } else if relation.destination_type == parent_type.name
+            || parent_type.hierarchy.contains(&relation.destination_type)
+          {
+            // Parent is the destination
+            where_clauses.push(format!(
+              "{}.{} = {}.{}",
+              base_alias, source_col, relation_alias, dest_col
+            ));
+            relation_resolved = true;
+          }
+        }
+      }
+
+      if !relation_resolved {
+        // Fallback heuristics for unmapped polymorphism or abstract models
+        if prop == "target" || prop == "source" {
+          if let Some(pta) = parent_table_aliases {
+            if let Some(a) = pta.get("relationship") {
+              relation_alias = a.clone();
+            }
+          }
+          where_clauses.push(format!(
+            "{}.id = {}.{}_id",
+            base_alias, relation_alias, prop
+          ));
+        } else {
+          where_clauses.push(format!("{}.parent_id = {}.id", base_alias, relation_alias));
+        }
       }
     }
 
@@ -610,10 +776,13 @@ impl SqlCompiler {
     &self,
     props: &std::collections::BTreeMap<String, std::sync::Arc<crate::database::schema::Schema>>,
     parent_alias: &str,
+    parent_table_aliases: Option<&std::collections::HashMap<String, String>>,
+    parent_type_def: Option<&crate::database::r#type::Type>,
     filter_keys: &[String],
     is_stem_query: bool,
     depth: usize,
     current_path: String,
+    alias_counter: &mut usize,
   ) -> Result<(String, String), String> {
     let mut build_args = Vec::new();
     for (k, v) in props {
@@ -622,15 +791,18 @@ impl SqlCompiler {
       } else {
         format!("{}.{}", current_path, k)
       };
-      
+
       let (child_sql, val_type) = self.walk_schema(
         v,
         parent_alias,
+        parent_table_aliases,
+        parent_type_def,
         Some(k),
         filter_keys,
         is_stem_query,
         depth + 1,
         next_path,
+        alias_counter,
       )?;
       if val_type == "abort" {
         continue;
@@ -645,11 +817,14 @@ impl SqlCompiler {
     &self,
     schemas: &[Arc<crate::database::schema::Schema>],
     parent_alias: &str,
+    parent_table_aliases: Option<&std::collections::HashMap<String, String>>,
+    parent_type_def: Option<&crate::database::r#type::Type>,
     prop_name_context: Option<&str>,
     filter_keys: &[String],
     is_stem_query: bool,
     depth: usize,
     current_path: String,
+    alias_counter: &mut usize,
   ) -> Result<(String, String), String> {
     let mut case_statements = Vec::new();
     let type_col = if let Some(prop) = prop_name_context {
@@ -662,16 +837,19 @@ impl SqlCompiler {
       if let Some(ref_id) = &option_schema.obj.r#ref {
         // Find the physical type this ref maps to
         let base_type_name = ref_id.split('.').next_back().unwrap_or("").to_string();
-        
+
         // Generate the nested SQL for this specific target type
         let (val_sql, _) = self.walk_schema(
           option_schema,
           parent_alias,
+          parent_table_aliases,
+          parent_type_def,
           prop_name_context,
           filter_keys,
           is_stem_query,
           depth,
           current_path.clone(),
+          alias_counter,
         )?;
 
         case_statements.push(format!(
@@ -685,10 +863,9 @@ impl SqlCompiler {
       return Ok(("NULL".to_string(), "string".to_string()));
     }
 
-    let sql = format!(
-      "CASE {} ELSE NULL END",
-      case_statements.join(" ")
-    );
+    case_statements.sort();
+
+    let sql = format!("CASE {} ELSE NULL END", case_statements.join(" "));
 
     Ok((sql, "object".to_string()))
   }

src/tests/mod.rs

@@ -2,7 +2,6 @@ use crate::*;
 pub mod runner;
 pub mod types;
 use serde_json::json;
-pub mod sql_validator;
 
 // Database module tests moved to src/database/executors/mock.rs
 

src/tests/runner.rs

@@ -1,19 +1,10 @@
+use crate::tests::types::Suite;
 use serde::Deserialize;
+use serde_json::Value;
 use std::collections::HashMap;
 use std::fs;
 use std::sync::{Arc, OnceLock, RwLock};
 
-#[derive(Debug, Deserialize)]
-pub struct TestSuite {
-  #[allow(dead_code)]
-  pub description: String,
-  pub database: serde_json::Value,
-  pub tests: Vec<TestCase>,
-}
-
-use crate::tests::types::TestCase;
-use serde_json::Value;
-
 pub fn deserialize_some<'de, D>(deserializer: D) -> Result<Option<Value>, D::Error>
 where
   D: serde::Deserializer<'de>,
@@ -23,7 +14,7 @@ where
 }
 
 // Type alias for easier reading
-type CompiledSuite = Arc<Vec<(TestSuite, Arc<crate::database::Database>)>>;
+type CompiledSuite = Arc<Vec<(Suite, Arc<crate::database::Database>)>>;
 
 // Global cache mapping filename -> Vector of (Parsed JSON suite, Compiled Database)
 static CACHE: OnceLock<RwLock<HashMap<String, CompiledSuite>>> = OnceLock::new();
@@ -46,7 +37,7 @@ fn get_cached_file(path: &str) -> CompiledSuite {
       } else {
         let content =
           fs::read_to_string(path).unwrap_or_else(|_| panic!("Failed to read file: {}", path));
-        let suites: Vec<TestSuite> = serde_json::from_str(&content)
+        let suites: Vec<Suite> = serde_json::from_str(&content)
           .unwrap_or_else(|e| panic!("Failed to parse JSON in {}: {}", path, e));
 
         let mut compiled_suites = Vec::new();

src/tests/sql_validator.rs

@@ -1,156 +0,0 @@
-use sqlparser::ast::{
-    Expr, Join, JoinConstraint, JoinOperator, Query, Select, SelectItem, SetExpr, Statement,
-    TableFactor, TableWithJoins, Ident,
-};
-use sqlparser::dialect::PostgreSqlDialect;
-use sqlparser::parser::Parser;
-use std::collections::HashSet;
-
-pub fn validate_semantic_sql(sql: &str) -> Result<(), String> {
-    let dialect = PostgreSqlDialect {};
-    let statements = match Parser::parse_sql(&dialect, sql) {
-        Ok(s) => s,
-        Err(e) => return Err(format!("SQL Syntax Error: {}\nSQL: {}", e, sql)),
-    };
-
-    for statement in statements {
-        validate_statement(&statement, sql)?;
-    }
-
-    Ok(())
-}
-
-fn validate_statement(stmt: &Statement, original_sql: &str) -> Result<(), String> {
-    match stmt {
-        Statement::Query(query) => validate_query(query, original_sql)?,
-        Statement::Insert(insert) => {
-            if let Some(query) = &insert.source {
-                 validate_query(query, original_sql)?
-            }
-        }
-        Statement::Update(update) => {
-            if let Some(expr) = &update.selection {
-                validate_expr(expr, &HashSet::new(), original_sql)?;
-            }
-        }
-        Statement::Delete(delete) => {
-            if let Some(expr) = &delete.selection {
-                validate_expr(expr, &HashSet::new(), original_sql)?;
-            }
-        }
-        _ => {}
-    }
-    Ok(())
-}
-
-fn validate_query(query: &Query, original_sql: &str) -> Result<(), String> {
-    if let SetExpr::Select(select) = &*query.body {
-        validate_select(select, original_sql)?;
-    }
-    Ok(())
-}
-
-fn validate_select(select: &Select, original_sql: &str) -> Result<(), String> {
-    let mut available_aliases = HashSet::new();
-
-    // 1. Collect all declared table aliases in the FROM clause and JOINs
-    for table_with_joins in &select.from {
-        collect_aliases_from_table_factor(&table_with_joins.relation, &mut available_aliases);
-        for join in &table_with_joins.joins {
-            collect_aliases_from_table_factor(&join.relation, &mut available_aliases);
-        }
-    }
-
-    // 2. Validate all SELECT projection fields
-    for projection in &select.projection {
-        if let SelectItem::UnnamedExpr(expr) | SelectItem::ExprWithAlias { expr, .. } = projection {
-            validate_expr(expr, &available_aliases, original_sql)?;
-        }
-    }
-
-    // 3. Validate ON conditions in joins 
-    for table_with_joins in &select.from {
-        for join in &table_with_joins.joins {
-            if let JoinOperator::Inner(JoinConstraint::On(expr))
-            | JoinOperator::LeftOuter(JoinConstraint::On(expr))
-            | JoinOperator::RightOuter(JoinConstraint::On(expr))
-            | JoinOperator::FullOuter(JoinConstraint::On(expr))
-            | JoinOperator::Join(JoinConstraint::On(expr)) = &join.join_operator
-            {
-                validate_expr(expr, &available_aliases, original_sql)?;
-            }
-        }
-    }
-
-    // 4. Validate WHERE conditions
-    if let Some(selection) = &select.selection {
-        validate_expr(selection, &available_aliases, original_sql)?;
-    }
-
-    Ok(())
-}
-
-fn collect_aliases_from_table_factor(tf: &TableFactor, aliases: &mut HashSet<String>) {
-    match tf {
-        TableFactor::Table { name, alias, .. } => {
-            if let Some(table_alias) = alias {
-                aliases.insert(table_alias.name.value.clone());
-            } else if let Some(last) = name.0.last() {
-                 match last {
-                     sqlparser::ast::ObjectNamePart::Identifier(i) => {
-                         aliases.insert(i.value.clone());
-                     }
-                     _ => {}
-                 }
-            }
-        }
-        TableFactor::Derived { alias: Some(table_alias), .. } => {
-            aliases.insert(table_alias.name.value.clone());
-        }
-        _ => {}
-    }
-}
-
-fn validate_expr(expr: &Expr, available_aliases: &HashSet<String>, sql: &str) -> Result<(), String> {
-    match expr {
-        Expr::CompoundIdentifier(idents) => {
-            if idents.len() == 2 {
-                let alias = &idents[0].value;
-                if !available_aliases.is_empty() && !available_aliases.contains(alias) {
-                    return Err(format!(
-                        "Semantic Error: Orchestrated query referenced table alias '{}' but it was not declared in the query's FROM/JOIN clauses.\nAvailable aliases: {:?}\nSQL: {}",
-                        alias, available_aliases, sql
-                    ));
-                }
-            } else if idents.len() > 2 {
-                let alias = &idents[1].value; // In form schema.table.column, 'table' is idents[1]
-                if !available_aliases.is_empty() && !available_aliases.contains(alias) {
-                    return Err(format!(
-                        "Semantic Error: Orchestrated query referenced table '{}' but it was not mapped.\nAvailable aliases: {:?}\nSQL: {}",
-                        alias, available_aliases, sql
-                    ));
-                }
-            }
-        }
-        Expr::BinaryOp { left, right, .. } => {
-            validate_expr(left, available_aliases, sql)?;
-            validate_expr(right, available_aliases, sql)?;
-        }
-        Expr::IsFalse(e) | Expr::IsNotFalse(e) | Expr::IsTrue(e) | Expr::IsNotTrue(e) 
-        | Expr::IsNull(e) | Expr::IsNotNull(e) | Expr::InList { expr: e, .. }
-        | Expr::Nested(e) | Expr::UnaryOp { expr: e, .. } | Expr::Cast { expr: e, .. }
-        | Expr::Like { expr: e, .. } | Expr::ILike { expr: e, .. } | Expr::AnyOp { left: e, .. }
-        | Expr::AllOp { left: e, .. } => {
-             validate_expr(e, available_aliases, sql)?;
-        }
-        Expr::Function(func) => {
-            if let sqlparser::ast::FunctionArguments::List(args) = &func.args {
-                if let Some(sqlparser::ast::FunctionArg::Unnamed(sqlparser::ast::FunctionArgExpr::Expr(e))) = args.args.get(0) {
-                    validate_expr(e, available_aliases, sql)?;
-                }
-            }
-        }
-        _ => {}
-    }
-    Ok(())
-}

src/tests/types/case.rs

@@ -1,11 +1,11 @@
-use super::expect::ExpectBlock;
+use super::expect::Expect;
 use crate::database::Database;
 use serde::Deserialize;
 use serde_json::Value;
 use std::sync::Arc;
 
 #[derive(Debug, Deserialize)]
-pub struct TestCase {
+pub struct Case {
   pub description: String,
 
   #[serde(default = "default_action")]
@@ -30,14 +30,14 @@ pub struct TestCase {
   #[serde(default)]
   pub mocks: Option<serde_json::Value>,
 
-  pub expect: Option<ExpectBlock>,
+  pub expect: Option<Expect>,
 }
 
 fn default_action() -> String {
   "validate".to_string()
 }
 
-impl TestCase {
+impl Case {
   pub fn run_compile(&self, db: Arc<Database>) -> Result<(), String> {
     let expected_success = self.expect.as_ref().map(|e| e.success).unwrap_or(false);
 
@@ -138,6 +138,7 @@ impl TestCase {
       ))
     } else if let Some(expect) = &self.expect {
       let queries = db.executor.get_queries();
+      expect.assert_pattern(&queries)?;
       expect.assert_sql(&queries)
     } else {
       Ok(())
@@ -176,6 +177,7 @@ impl TestCase {
       ))
     } else if let Some(expect) = &self.expect {
       let queries = db.executor.get_queries();
+      expect.assert_pattern(&queries)?;
       expect.assert_sql(&queries)
     } else {
       Ok(())

src/tests/types/expect/mod.rs

@@ -0,0 +1,22 @@
+pub mod pattern;
+pub mod sql;
+
+use serde::Deserialize;
+use std::collections::HashMap;
+
+#[derive(Debug, Deserialize)]
+#[serde(untagged)]
+pub enum SqlExpectation {
+  Single(String),
+  Multi(Vec<String>),
+}
+
+#[derive(Debug, Deserialize)]
+pub struct Expect {
+  pub success: bool,
+  pub result: Option<serde_json::Value>,
+  pub errors: Option<Vec<serde_json::Value>>,
+  pub stems: Option<HashMap<String, HashMap<String, serde_json::Value>>>,
+  #[serde(default)]
+  pub sql: Option<Vec<SqlExpectation>>,
+}

src/tests/types/expect/pattern.rs

@@ -1,30 +1,13 @@
+use super::Expect;
 use regex::Regex;
-use serde::Deserialize;
 use std::collections::HashMap;
 
-#[derive(Debug, Deserialize)]
-#[serde(untagged)]
-pub enum SqlExpectation {
-  Single(String),
-  Multi(Vec<String>),
-}
-
-#[derive(Debug, Deserialize)]
-pub struct ExpectBlock {
-  pub success: bool,
-  pub result: Option<serde_json::Value>,
-  pub errors: Option<Vec<serde_json::Value>>,
-  pub stems: Option<HashMap<String, HashMap<String, serde_json::Value>>>,
-  #[serde(default)]
-  pub sql: Option<Vec<SqlExpectation>>,
-}
-
-impl ExpectBlock {
+impl Expect {
   /// Advanced SQL execution assertion algorithm ported from `assert.go`.
   /// This compares two arrays of strings, one containing {{uuid:name}} or {{timestamp}} placeholders,
   /// and the other containing actual executed database queries. It ensures that placeholder UUIDs
   /// are consistently mapped to the same actual UUIDs across all lines, and strictly validates line-by-line sequences.
-  pub fn assert_sql(&self, actual: &[String]) -> Result<(), String> {
+  pub fn assert_pattern(&self, actual: &[String]) -> Result<(), String> {
     let patterns = match &self.sql {
       Some(s) => s,
       None => return Ok(()),
@@ -39,12 +22,6 @@ impl ExpectBlock {
       ));
     }
 
-    for query in actual {
-      if let Err(e) = crate::tests::sql_validator::validate_semantic_sql(query) {
-        return Err(e);
-      }
-    }
-
     let ws_re = Regex::new(r"\s+").unwrap();
 
     let types = HashMap::from([
@@ -82,8 +59,8 @@ impl ExpectBlock {
       let aline = clean_str(aline_raw);
 
       let pattern_str_raw = match pattern_expect {
-        SqlExpectation::Single(s) => s.clone(),
-        SqlExpectation::Multi(m) => m.join(" "),
+        super::SqlExpectation::Single(s) => s.clone(),
+        super::SqlExpectation::Multi(m) => m.join(" "),
       };
 
       let pattern_str = clean_str(&pattern_str_raw);

src/tests/types/expect/sql.rs

@@ -0,0 +1,206 @@
+use super::Expect;
+use sqlparser::ast::{Expr, Query, SelectItem, Statement, TableFactor};
+use sqlparser::dialect::PostgreSqlDialect;
+use sqlparser::parser::Parser;
+use std::collections::HashSet;
+
+impl Expect {
+  pub fn assert_sql(&self, actual: &[String]) -> Result<(), String> {
+    for query in actual {
+      if let Err(e) = Self::validate_semantic_sql(query) {
+        return Err(e);
+      }
+    }
+    Ok(())
+  }
+
+  pub fn validate_semantic_sql(sql: &str) -> Result<(), String> {
+    let dialect = PostgreSqlDialect {};
+    let statements = match Parser::parse_sql(&dialect, sql) {
+      Ok(s) => s,
+      Err(e) => return Err(format!("SQL Syntax Error: {}\nSQL: {}", e, sql)),
+    };
+
+    for statement in statements {
+      Self::validate_statement(&statement, sql)?;
+    }
+
+    Ok(())
+  }
+
+  fn validate_statement(stmt: &Statement, original_sql: &str) -> Result<(), String> {
+    match stmt {
+      Statement::Query(query) => Self::validate_query(query, &HashSet::new(), original_sql)?,
+      Statement::Insert(insert) => {
+        if let Some(query) = &insert.source {
+          Self::validate_query(query, &HashSet::new(), original_sql)?
+        }
+      }
+      Statement::Update(update) => {
+        if let Some(expr) = &update.selection {
+          Self::validate_expr(expr, &HashSet::new(), original_sql)?;
+        }
+      }
+      Statement::Delete(delete) => {
+        if let Some(expr) = &delete.selection {
+          Self::validate_expr(expr, &HashSet::new(), original_sql)?;
+        }
+      }
+      _ => {}
+    }
+    Ok(())
+  }
+
+  fn validate_query(
+    query: &Query,
+    available_aliases: &HashSet<String>,
+    original_sql: &str,
+  ) -> Result<(), String> {
+    if let sqlparser::ast::SetExpr::Select(select) = &*query.body {
+      Self::validate_select(&select, available_aliases, original_sql)?;
+    }
+    Ok(())
+  }
+
+  fn validate_select(
+    select: &sqlparser::ast::Select,
+    parent_aliases: &HashSet<String>,
+    original_sql: &str,
+  ) -> Result<(), String> {
+    let mut available_aliases = parent_aliases.clone();
+
+    // 1. Collect all declared table aliases in the FROM clause and JOINs
+    for table_with_joins in &select.from {
+      Self::collect_aliases_from_table_factor(&table_with_joins.relation, &mut available_aliases);
+      for join in &table_with_joins.joins {
+        Self::collect_aliases_from_table_factor(&join.relation, &mut available_aliases);
+      }
+    }
+
+    // 2. Validate all SELECT projection fields
+    for projection in &select.projection {
+      if let SelectItem::UnnamedExpr(expr) | SelectItem::ExprWithAlias { expr, .. } = projection {
+        Self::validate_expr(expr, &available_aliases, original_sql)?;
+      }
+    }
+
+    // 3. Validate ON conditions in joins
+    for table_with_joins in &select.from {
+      for join in &table_with_joins.joins {
+        if let sqlparser::ast::JoinOperator::Inner(sqlparser::ast::JoinConstraint::On(expr))
+        | sqlparser::ast::JoinOperator::LeftOuter(sqlparser::ast::JoinConstraint::On(expr))
+        | sqlparser::ast::JoinOperator::RightOuter(sqlparser::ast::JoinConstraint::On(expr))
+        | sqlparser::ast::JoinOperator::FullOuter(sqlparser::ast::JoinConstraint::On(expr))
+        | sqlparser::ast::JoinOperator::Join(sqlparser::ast::JoinConstraint::On(expr)) =
+          &join.join_operator
+        {
+          Self::validate_expr(expr, &available_aliases, original_sql)?;
+        }
+      }
+    }
+
+    // 4. Validate WHERE conditions
+    if let Some(selection) = &select.selection {
+      Self::validate_expr(selection, &available_aliases, original_sql)?;
+    }
+
+    Ok(())
+  }
+
+  fn collect_aliases_from_table_factor(tf: &TableFactor, aliases: &mut HashSet<String>) {
+    match tf {
+      TableFactor::Table { name, alias, .. } => {
+        if let Some(table_alias) = alias {
+          aliases.insert(table_alias.name.value.clone());
+        } else if let Some(last) = name.0.last() {
+          match last {
+            sqlparser::ast::ObjectNamePart::Identifier(i) => {
+              aliases.insert(i.value.clone());
+            }
+            _ => {}
+          }
+        }
+      }
+      TableFactor::Derived {
+        subquery,
+        alias: Some(table_alias),
+        ..
+      } => {
+        aliases.insert(table_alias.name.value.clone());
+        // A derived table is technically a nested scope which is opaque outside, but for pure semantic checks
+        // its internal contents should be validated purely within its own scope (not leaking external aliases in, usually)
+        // but Postgres allows lateral correlation. We will validate its interior with an empty scope.
+        let _ = Self::validate_query(subquery, &HashSet::new(), "");
+      }
+      _ => {}
+    }
+  }
+
+  fn validate_expr(
+    expr: &Expr,
+    available_aliases: &HashSet<String>,
+    sql: &str,
+  ) -> Result<(), String> {
+    match expr {
+      Expr::CompoundIdentifier(idents) => {
+        if idents.len() == 2 {
+          let alias = &idents[0].value;
+          if !available_aliases.is_empty() && !available_aliases.contains(alias) {
+            return Err(format!(
+              "Semantic Error: Orchestrated query referenced table alias '{}' but it was not declared in the query's FROM/JOIN clauses.\nAvailable aliases: {:?}\nSQL: {}",
+              alias, available_aliases, sql
+            ));
+          }
+        } else if idents.len() > 2 {
+          let alias = &idents[1].value; // In form schema.table.column, 'table' is idents[1]
+          if !available_aliases.is_empty() && !available_aliases.contains(alias) {
+            return Err(format!(
+              "Semantic Error: Orchestrated query referenced table '{}' but it was not mapped.\nAvailable aliases: {:?}\nSQL: {}",
+              alias, available_aliases, sql
+            ));
+          }
+        }
+      }
+      Expr::Subquery(subquery) => Self::validate_query(subquery, available_aliases, sql)?,
+      Expr::Exists { subquery, .. } => Self::validate_query(subquery, available_aliases, sql)?,
+      Expr::InSubquery {
+        expr: e, subquery, ..
+      } => {
+        Self::validate_expr(e, available_aliases, sql)?;
+        Self::validate_query(subquery, available_aliases, sql)?;
+      }
+      Expr::BinaryOp { left, right, .. } => {
+        Self::validate_expr(left, available_aliases, sql)?;
+        Self::validate_expr(right, available_aliases, sql)?;
+      }
+      Expr::IsFalse(e)
+      | Expr::IsNotFalse(e)
+      | Expr::IsTrue(e)
+      | Expr::IsNotTrue(e)
+      | Expr::IsNull(e)
+      | Expr::IsNotNull(e)
+      | Expr::InList { expr: e, .. }
+      | Expr::Nested(e)
+      | Expr::UnaryOp { expr: e, .. }
+      | Expr::Cast { expr: e, .. }
+      | Expr::Like { expr: e, .. }
+      | Expr::ILike { expr: e, .. }
+      | Expr::AnyOp { left: e, .. }
+      | Expr::AllOp { left: e, .. } => {
+        Self::validate_expr(e, available_aliases, sql)?;
+      }
+      Expr::Function(func) => {
+        if let sqlparser::ast::FunctionArguments::List(args) = &func.args {
+          if let Some(sqlparser::ast::FunctionArg::Unnamed(sqlparser::ast::FunctionArgExpr::Expr(
+            e,
+          ))) = args.args.get(0)
+          {
+            Self::validate_expr(e, available_aliases, sql)?;
+          }
+        }
+      }
+      _ => {}
+    }
+    Ok(())
+  }
+}

src/tests/types/mod.rs

@@ -2,6 +2,6 @@ pub mod case;
 pub mod expect;
 pub mod suite;
 
-pub use case::TestCase;
-pub use expect::ExpectBlock;
-pub use suite::TestSuite;
+pub use case::Case;
+pub use expect::Expect;
+pub use suite::Suite;

src/tests/types/suite.rs

@@ -1,10 +1,10 @@
-use super::case::TestCase;
+use super::case::Case;
 use serde::Deserialize;
 
 #[derive(Debug, Deserialize)]
-pub struct TestSuite {
+pub struct Suite {
   #[allow(dead_code)]
   pub description: String,
   pub database: serde_json::Value,
-  pub tests: Vec<TestCase>,
+  pub tests: Vec<Case>,
 }

src/validator/mod.rs

@@ -68,11 +68,11 @@ impl Validator {
                 code: e.code,
                 message: e.message,
                 details: crate::drop::ErrorDetails {
-            path: e.path,
-            cause: None,
-            context: None,
-            schema: None,
-          },
+                  path: e.path,
+                  cause: None,
+                  context: None,
+                  schema: None,
+                },
               })
               .collect();
             crate::drop::Drop::with_errors(errors)

t10.json

@@ -0,0 +1,54 @@
+[
+  [
+    "(SELECT jsonb_build_object(",
+    "    'id', organization_1.id,",
+    "    'type', CASE",
+    "        WHEN organization_1.type = 'person' THEN",
+    "            ((SELECT jsonb_build_object(",
+    "                 'age', person_3.age,",
+    "                 'archived', entity_5.archived,",
+    "                 'created_at', entity_5.created_at,",
+    "                 'first_name', person_3.first_name,",
+    "                 'id', entity_5.id,",
+    "                 'last_name', person_3.last_name,",
+    "                 'name', entity_5.name,",
+    "                 'type', entity_5.type",
+    "             )",
+    "             FROM agreego.person person_3",
+    "             JOIN agreego.organization organization_4 ON organization_4.id = person_3.id",
+    "             JOIN agreego.entity entity_5 ON entity_5.id = organization_4.id",
+    "             WHERE",
+    "                 NOT entity_5.archived))",
+    "        WHEN organization_1.type = 'bot' THEN",
+    "            ((SELECT jsonb_build_object(",
+    "                 'archived', entity_8.archived,",
+    "                 'created_at', entity_8.created_at,",
+    "                 'id', entity_8.id,",
+    "                 'name', entity_8.name,",
+    "                 'token', bot_6.token,",
+    "                 'type', entity_8.type",
+    "             )",
+    "             FROM agreego.bot bot_6",
+    "             JOIN agreego.organization organization_7 ON organization_7.id = bot_6.id",
+    "             JOIN agreego.entity entity_8 ON entity_8.id = organization_7.id",
+    "             WHERE",
+    "                 NOT entity_8.archived))",
+    "        WHEN organization_1.type = 'organization' THEN",
+    "            ((SELECT jsonb_build_object(",
+    "                 'archived', entity_10.archived,",
+    "                 'created_at', entity_10.created_at,",
+    "                 'id', entity_10.id,",
+    "                 'name', entity_10.name,",
+    "                 'type', entity_10.type",
+    "             )",
+    "             FROM agreego.organization organization_9",
+    "             JOIN agreego.entity entity_10 ON entity_10.id = organization_9.id",
+    "             WHERE",
+    "                 NOT entity_10.archived))",
+    "        ELSE NULL END",
+    ")",
+    "FROM agreego.organization organization_1",
+    "JOIN agreego.entity entity_2 ON entity_2.id = organization_1.id",
+    "WHERE NOT entity_2.archived)"
+  ]
+]

t4.json

@@ -0,0 +1,164 @@
+[
+  [
+    "(SELECT jsonb_build_object(",
+    "    'addresses',",
+    "    (SELECT COALESCE(jsonb_agg(jsonb_build_object(",
+    "        'archived', entity_6.archived,",
+    "        'created_at', entity_6.created_at,",
+    "        'id', entity_6.id,",
+    "        'is_primary', contact_4.is_primary,",
+    "        'name', entity_6.name,",
+    "        'target',",
+    "        (SELECT jsonb_build_object(",
+    "            'archived', entity_8.archived,",
+    "            'city', address_7.city,",
+    "            'created_at', entity_8.created_at,",
+    "            'id', entity_8.id,",
+    "            'name', entity_8.name,",
+    "            'type', entity_8.type",
+    "        )",
+    "        FROM agreego.address address_7",
+    "        JOIN agreego.entity entity_8 ON entity_8.id = address_7.id",
+    "        WHERE",
+    "            NOT entity_8.archived",
+    "            AND relationship_5.target_id = address_7.id),",
+    "        'type', entity_6.type",
+    "    )), '[]'::jsonb)",
+    "    FROM agreego.contact contact_4",
+    "    JOIN agreego.relationship relationship_5 ON relationship_5.id = contact_4.id",
+    "    JOIN agreego.entity entity_6 ON entity_6.id = relationship_5.id",
+    "    WHERE",
+    "        NOT entity_6.archived",
+    "        AND contact_4.parent_id = entity_3.id),",
+    "    'age', person_1.age,",
+    "    'archived', entity_3.archived,",
+    "    'contacts',",
+    "    (SELECT COALESCE(jsonb_agg(jsonb_build_object(",
+    "        'archived', entity_11.archived,",
+    "        'created_at', entity_11.created_at,",
+    "        'id', entity_11.id,",
+    "        'is_primary', contact_9.is_primary,",
+    "        'name', entity_11.name,",
+    "        'target', CASE",
+    "            WHEN entity_11.target_type = 'address' THEN",
+    "                ((SELECT jsonb_build_object(",
+    "                     'archived', entity_17.archived,",
+    "                     'city', address_16.city,",
+    "                     'created_at', entity_17.created_at,",
+    "                     'id', entity_17.id,",
+    "                     'name', entity_17.name,",
+    "                     'type', entity_17.type",
+    "                 )",
+    "                 FROM agreego.address address_16",
+    "                 JOIN agreego.entity entity_17 ON entity_17.id = address_16.id",
+    "                 WHERE",
+    "                     NOT entity_17.archived",
+    "                     AND relationship_10.target_id = address_16.id))",
+    "            WHEN entity_11.target_type = 'email_address' THEN",
+    "                ((SELECT jsonb_build_object(",
+    "                     'address', email_address_14.address,",
+    "                     'archived', entity_15.archived,",
+    "                     'created_at', entity_15.created_at,",
+    "                     'id', entity_15.id,",
+    "                     'name', entity_15.name,",
+    "                     'type', entity_15.type",
+    "                 )",
+    "                 FROM agreego.email_address email_address_14",
+    "                 JOIN agreego.entity entity_15 ON entity_15.id = email_address_14.id",
+    "                 WHERE",
+    "                     NOT entity_15.archived",
+    "                     AND relationship_10.target_id = email_address_14.id))",
+    "            WHEN entity_11.target_type = 'phone_number' THEN",
+    "                ((SELECT jsonb_build_object(",
+    "                     'archived', entity_13.archived,",
+    "                     'created_at', entity_13.created_at,",
+    "                     'id', entity_13.id,",
+    "                     'name', entity_13.name,",
+    "                     'number', phone_number_12.number,",
+    "                     'type', entity_13.type",
+    "                 )",
+    "                 FROM agreego.phone_number phone_number_12",
+    "                 JOIN agreego.entity entity_13 ON entity_13.id = phone_number_12.id",
+    "                 WHERE",
+    "                     NOT entity_13.archived",
+    "                     AND relationship_10.target_id = phone_number_12.id))",
+    "            ELSE NULL END,",
+    "        'type', entity_11.type",
+    "    )), '[]'::jsonb)",
+    "    FROM agreego.contact contact_9",
+    "    JOIN agreego.relationship relationship_10 ON relationship_10.id = contact_9.id",
+    "    JOIN agreego.entity entity_11 ON entity_11.id = relationship_10.id",
+    "    WHERE",
+    "        NOT entity_11.archived",
+    "        AND contact_9.parent_id = entity_3.id),",
+    "    'created_at', entity_3.created_at,",
+    "    'email_addresses',",
+    "    (SELECT COALESCE(jsonb_agg(jsonb_build_object(",
+    "        'archived', entity_20.archived,",
+    "        'created_at', entity_20.created_at,",
+    "        'id', entity_20.id,",
+    "        'is_primary', contact_18.is_primary,",
+    "        'name', entity_20.name,",
+    "        'target',",
+    "        (SELECT jsonb_build_object(",
+    "            'address', email_address_21.address,",
+    "            'archived', entity_22.archived,",
+    "            'created_at', entity_22.created_at,",
+    "            'id', entity_22.id,",
+    "            'name', entity_22.name,",
+    "            'type', entity_22.type",
+    "        )",
+    "        FROM agreego.email_address email_address_21",
+    "        JOIN agreego.entity entity_22 ON entity_22.id = email_address_21.id",
+    "        WHERE",
+    "            NOT entity_22.archived",
+    "            AND relationship_19.target_id = email_address_21.id),",
+    "        'type', entity_20.type",
+    "    )), '[]'::jsonb)",
+    "    FROM agreego.contact contact_18",
+    "    JOIN agreego.relationship relationship_19 ON relationship_19.id = contact_18.id",
+    "    JOIN agreego.entity entity_20 ON entity_20.id = relationship_19.id",
+    "    WHERE",
+    "        NOT entity_20.archived",
+    "        AND contact_18.parent_id = entity_3.id),",
+    "    'first_name', person_1.first_name,",
+    "    'id', entity_3.id,",
+    "    'last_name', person_1.last_name,",
+    "    'name', entity_3.name,",
+    "    'phone_numbers',",
+    "    (SELECT COALESCE(jsonb_agg(jsonb_build_object(",
+    "        'archived', entity_25.archived,",
+    "        'created_at', entity_25.created_at,",
+    "        'id', entity_25.id,",
+    "        'is_primary', contact_23.is_primary,",
+    "        'name', entity_25.name,",
+    "        'target',",
+    "        (SELECT jsonb_build_object(",
+    "            'archived', entity_27.archived,",
+    "            'created_at', entity_27.created_at,",
+    "            'id', entity_27.id,",
+    "            'name', entity_27.name,",
+    "            'number', phone_number_26.number,",
+    "            'type', entity_27.type",
+    "        )",
+    "        FROM agreego.phone_number phone_number_26",
+    "        JOIN agreego.entity entity_27 ON entity_27.id = phone_number_26.id",
+    "        WHERE",
+    "            NOT entity_27.archived",
+    "            AND relationship_24.target_id = phone_number_26.id),",
+    "        'type', entity_25.type",
+    "    )), '[]'::jsonb)",
+    "    FROM agreego.contact contact_23",
+    "    JOIN agreego.relationship relationship_24 ON relationship_24.id = contact_23.id",
+    "    JOIN agreego.entity entity_25 ON entity_25.id = relationship_24.id",
+    "    WHERE",
+    "        NOT entity_25.archived",
+    "        AND contact_23.parent_id = entity_3.id),",
+    "    'type', entity_3.type",
+    ")",
+    "FROM agreego.person person_1",
+    "JOIN agreego.organization organization_2 ON organization_2.id = person_1.id",
+    "JOIN agreego.entity entity_3 ON entity_3.id = organization_2.id",
+    "WHERE NOT entity_3.archived)"
+  ]
+]

version

@@ -1 +1 @@
-1.0.70
+1.0.71