Cleanup parser statements, add delete and insert statement, add TASKS.md for tracking tasks

sql/ast.go

@@ -33,5 +33,17 @@ type SelectStatement struct {
 	Fields []string
 }
 
+type InsertStatement struct {
+	Table  string
+	Values map[string]any
+}
+
+type DeleteStatement struct {
+	Table string
+	Extra []string
+}
+
 func (_ *CreateTableStatement) isEnumValue() {}
 func (_ *SelectStatement) isEnumValue()      {}
+func (_ *InsertStatement) isEnumValue()      {}
+func (_ *DeleteStatement) isEnumValue()      {}