save

src/main/scala/minisql/ast/FromExprs.scala

@@ -123,6 +123,13 @@ private given FromExpr[Query] with {
       Some(FlatMap(b, id, body))
     case '{ ConcatMap(${ Expr(b) }, ${ Expr(id) }, ${ Expr(body) }) } =>
       Some(ConcatMap(b, id, body))
+    case '{
+          val x: Ast   = ${ Expr(b) }
+          val y: Ident = ${ Expr(id) }
+          val z: Ast   = ${ Expr(body) }
+          ConcatMap(x, y, z)
+        } =>
+      Some(ConcatMap(b, id, body))
     case '{ Drop(${ Expr(b) }, ${ Expr(n) }) } =>
       Some(Drop(b, n))
     case '{ Take(${ Expr(b) }, ${ Expr[Ast](n) }) } =>

src/main/scala/minisql/context/Context.scala

@@ -56,6 +56,10 @@ trait Context[I <: Idiom, N <: NamingStrategy] { selft =>
     extract: RowExtract[X]
   )
 
+  extension (ast: Ast) {
+    extractParams
+  }
+
   inline def io[E](
     inline q: minisql.Query[E]
   )(using r: RowExtract[E]): DBIO[Seq[E]] = {

src/main/scala/minisql/idiom/ReifyStatement.scala

@@ -62,7 +62,7 @@ object ReifyStatement {
     statement: Statement,
     emptySetContainsToken: Token => Token,
     liftMap: SMap[String, (Any, Any)]
-  ): (Token) = {
+  ): Token = {
     ???
   }
 }