stephencelis#994

Author: sergeymild

Sources/SQLite/Typed/Query.swift

@@ -998,6 +998,10 @@ extension Connection {
                 select.clauses.select = (false, [Expression<Void>(literal: "*") as Expressible])
                 let queries = [select] + query.clauses.join.map { $0.query }
                 if !namespace.isEmpty {
+                    let tableNames = queries.map({ $0.tableName().expression.template })
+                    if !tableNames.contains(namespace) {
+                        throw QueryError.noSuchTable(name: namespace)
+                    }
                     for q in queries {
                         if q.tableName().expression.template == namespace {
                             try expandGlob(true)(q)

Tests/SQLiteTests/QueryTests.swift

@@ -93,6 +93,14 @@ class QueryTests : XCTestCase {
             users.join(posts, on: posts[userId] == users[id]).join(categories, on: categories[id] == posts[categoryId])
         )
     }
+    
+    func test_join_compilesJoinClause_withNamespaces() {
+        let query = users.join(posts, on: posts[userId] == users[id]).select(posts[*], users[*])
+        AssertSQL(
+            "SELECT \"posts\".*, \"users\".* FROM \"users\" INNER JOIN \"posts\" ON (\"posts\".\"user_id\" = \"users\".\"id\")",
+            query
+        )
+    }
 
     func test_filter_compilesWhereClause() {
         AssertSQL("SELECT * FROM \"users\" WHERE (\"admin\" = 1)", users.filter(admin == true))