CreateQuery lightweight_test (children 3)
 Identifier lightweight_test
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration ts (children 1)
    DataType DateTime
   ColumnDeclaration value (children 1)
    DataType String
   ColumnDeclaration key (children 1)
    DataType String
 Storage definition (children 4)
  Function ReplicatedMergeTree (children 1)
   ExpressionList (children 2)
    Literal \'/clickhouse/tables/{database}/lightweight_test\'
    Literal \'1\'
  Function toYYYYMMDD (children 1)
   ExpressionList (children 1)
    Identifier ts
  Identifier key
  Set
