Implement an in-memory databasewqa

pkg/ramdb/errors.go

@@ -0,0 +1,15 @@
+package ramdb
+
+import "errors"
+
+var (
+	ErrNoTable     = errors.New("table does not exist")
+	ErrTableExists = errors.New("table already exists")
+
+	ErrNoRecord     = errors.New("record does not exist")
+	ErrRecordExists = errors.New("record already exists")
+
+	ErrNoIndex      = errors.New("index does not exist")
+	ErrInvalidIndex = errors.New("invalid index column")
+	ErrIndexExists  = errors.New("index already exists")
+)