CreateQuery data_rep (children 3)
 Identifier data_rep
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration key (children 1)
    DataType Int
 Storage definition (children 2)
  Function ReplicatedAggregatingMergeTree (children 1)
   ExpressionList (children 2)
    Literal \'/tables/{database}\'
    Literal \'r1\'
  Identifier key
