Creating a parser for Big query

[Arash Bizhan zadeh]

Hi,
I am trying to create a parser to parse big query statements like this -
this is kotlin btw:

val sqlParserConfig = BigQuerySqlDialect(
BigQuerySqlDialect.DEFAULT_CONTEXT.withDatabaseProduct(SqlDialect.DatabaseProduct.BIG_QUERY)).configureParser(SqlParser.config()
      .withParserFactory(SqlBabelParserImpl.FACTORY)

      .withConformance(SqlConformanceEnum.BIG_QUERY))
    val parser = SqlParser.create(str, sqlParserConfig)

but the resulting parser seems not to understand BQ specific things like
the `IF` function.

How can I properly construct a SqlParser?