Indexes should support more types to deal with Postgresql indexes

[pierresouchay]

Indexes seem to support only hash and btree

But just to name Postgresql, there are many other index types:

• gist
• sp-gitst
• gin
• brin

@Vanderhoof We can either add those values in the enum or maybe allow any kind of value, do you have an opinion on the subject?

[Vanderhoof]

Hi @pierresouchay!
Thanks for raising this question. Originally I was relying on the DBML docs saying:

type: type of index (btree, gin, gist, hash depending on DB). For now, only type btree and hash are accepted.

But I just checked and saw that the official dbml2sql does accept arbitrary values for an index type, so I see no reason why we should limit it in PyDBML either.

And thanks for implementing the extra indexes, I will apply your PR shortly

[pierresouchay]

@Vanderhoof indeed, a colleague of mine had the issue with sql2dbml tool... Thanks a lot!

PS: thank you for your work on this lib, and it would be amazing if you could do a release not before too long.

[Vanderhoof]

Sure, I will do the release within an hour!
UPD: Done!