CreateQuery table1 (children 3)
 Identifier table1
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration A (children 1)
    DataType String
   ColumnDeclaration B (children 1)
    DataType String
   ColumnDeclaration ts (children 1)
    DataType DateTime
 Storage definition (children 3)
  Function MergeTree
  Function toStartOfDay (children 1)
   ExpressionList (children 1)
    Identifier ts
  Function tuple (children 1)
   ExpressionList (children 3)
    Identifier ts
    Identifier A
    Identifier B