.group().having() is not a function

[hagen]

Hi there,
running mssql flavor of Squel. Seems .having() is not supported for this flavor?

squel.select().from('Table').group('Field').having(squel.str('COUNT(*) > ?'), 1)

If flavor is changed to mysql, no error is thrown.

[dnseminara]

Encountering the exact same situation when using the mssql flag.

EDIT: Quickly looking at the differences, it looks like mssql.js is missing the HavingBlock from Core.js. While, the postgres flavour includes it