CreateQuery post_metrics (children 3)
 Identifier post_metrics
 Columns definition (children 1)
  ExpressionList (children 6)
   ColumnDeclaration page_id (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType String
   ColumnDeclaration post_id (children 2)
    DataType String
    Function CODEC (children 1)
     ExpressionList (children 1)
      Function LZ4
   ColumnDeclaration created (children 2)
    DataType DateTime
    Function CODEC (children 1)
     ExpressionList (children 2)
      Function T64
      Function LZ4
   ColumnDeclaration impressions (children 2)
    DataType UInt32
    Function CODEC (children 1)
     ExpressionList (children 2)
      Function T64
      Function LZ4
   ColumnDeclaration clicks (children 2)
    DataType UInt32
    Function CODEC (children 1)
     ExpressionList (children 2)
      Function T64
      Function LZ4
   ColumnDeclaration as_of (children 2)
    DataType DateTime
    Function CODEC (children 1)
     ExpressionList (children 2)
      Function T64
      Function LZ4
 Storage definition (children 3)
  Function ReplacingMergeTree (children 1)
   ExpressionList (children 1)
    Identifier as_of
  Function toStartOfMonth (children 1)
   ExpressionList (children 1)
    Identifier created
  Function tuple (children 1)
   ExpressionList (children 2)
    Identifier page_id
    Identifier post_id
