fix (codegen): don't duplicate the primary-key getter for 'without rowid' tables

pkg/schema/index.go

@@ -1,10 +1,19 @@
 package schema
 
+type IndexOrigin string
+
+const (
+	IndexOriginCreateIndex      = IndexOrigin("c")
+	IndexOriginUniqueConstraint = IndexOrigin("u")
+	IndexOriginPrimaryKey       = IndexOrigin("pk")
+)
+
 type Index struct {
 	Name      string `db:"index_name"`
 	TableName string `db:"table_name"`
 	Columns   []string
-	IsUnique  bool `db:"is_unique"`
+	IsUnique  bool        `db:"is_unique"`
+	Origin    IndexOrigin `db:"origin"`
 	// TODO: `where ...` for partial indexes
 	// TODO: identify columns that are expressions
 }

pkg/schema/parse.go

@@ -49,7 +49,7 @@ func SchemaFromDB(db *sqlx.DB) Schema {
 	}
 
 	var indexes []Index
-	must.Do(db.Select(&indexes, `select index_name, table_name, is_unique from indexes`))
+	must.Do(db.Select(&indexes, `select index_name, table_name, is_unique, origin from indexes`))
 	for _, idx := range indexes {
 		must.Do(db.Select(&idx.Columns, `select column_name from index_columns where index_name = ? order by rank`, idx.Name))
 		ret.Indexes[idx.Name] = idx

pkg/schema/views.sql

@@ -27,7 +27,8 @@ create temporary view columns as
 create temporary view indexes as
     select idx.name as index_name,
            tables.name as table_name,
-           idx."unique" as is_unique
+           idx."unique" as is_unique,
+           idx.origin as origin
       from tables
       join pragma_index_list(tables.name) idx;