AlterQuery  tab (children 2)
 ExpressionList (children 1)
  AlterCommand ADD_INDEX (children 1)
   Index (children 2)
    Identifier vec
    Function vector_similarity (children 1)
     ExpressionList (children 6)
      Literal \'hnsw\'
      Literal \'cosineDistance\'
      Literal UInt64_2
      Literal \'f32\'
      Literal UInt64_64
      Literal UInt64_400
 Identifier tab
