[Breaking change] Join syntax changes

Updates
1

We’ve removed certain join syntaxes:

  • table[:] as an alias for table.index_globals()
  • mt[:, :] as an alias for mt.index_globals()
  • mt[row keys..., :] as an alias for mt.index_rows(row keys...)
  • mt[:, col keys...] as an alias for mt.index_cols(col keys...)

Sorry for the inconvenience.