Symbol hover effects and symbol definition gotos possible?

[Donnerstagnacht]

A productivity tool from other languages which I like are hover definition effects and symbol links to definitions. For example in typescript and vs-code:

Would be something similiar in postgres/sql files or is there already another technology/extension which provides this?

Since the language server can provide column suggestions, could it not suggest table definitions on hover too?

[Donnerstagnacht]

Possible and issue exists in #129 and #130