CreateQuery users (children 3)
 Identifier users
 Columns definition (children 1)
  ExpressionList (children 4)
   ColumnDeclaration uid (children 1)
    DataType Int16
   ColumnDeclaration name (children 1)
    DataType String
   ColumnDeclaration gid (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType String
   ColumnDeclaration gname (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType String
 Storage definition (children 2)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
