CreateQuery tableB (children 3)
 Identifier tableB
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration key (children 1)
    DataType String
   ColumnDeclaration value2 (children 1)
    DataType Int32
 Storage definition (children 2)
  Function MergeTree (children 1)
   ExpressionList
  Function tuple (children 1)
   ExpressionList
