presto-parser/src/main/java/io/prestosql/sql/tree/SubscriptExpression.java/SubscriptExpression/equals
class SubscriptExpression:    @Override
    public boolean equals(Object o)
    {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        SubscriptExpression that = (SubscriptExpression) o;

        return Objects.equals(this.base, that.base) && Objects.equals(this.index, that.index);
    }