spanner/spansql: ALTER INDEX statement is not supported.

[toga4]

Client

Spanner spansql

Environment

Go Playground

Go Environment

Go 1.19

Code

e.g.

package main

import (
	"fmt"

	"cloud.google.com/go/spanner/spansql"
)

func main() {
	fmt.Println(spansql.ParseDDL("ddl", "ALTER INDEX AlbumsByAlbumTitle ADD STORED COLUMN MarketingBudget"))
	fmt.Println(spansql.ParseDDL("ddl", "ALTER INDEX AlbumsByAlbumTitle DROP STORED COLUMN MarketingBudget"))
}

https://go.dev/play/p/uBKDmymN3cD

Expected behavior

Parses

Actual behavior

<nil> ddl:1.0: unknown DDL statement
<nil> ddl:1.0: unknown DDL statement