Function list_tables 

pub fn list_tables(input: &str) -> Result<Vec<String>>

List all table names defined in a SurrealQL string.

Example

let tables = surql_parser::list_tables("
    DEFINE TABLE user SCHEMAFULL;
    DEFINE TABLE post SCHEMALESS;
    SELECT * FROM user;
").unwrap();

assert_eq!(tables, vec!["user", "post"]);