CreateQuery table_with_column_ttl (children 3) Identifier table_with_column_ttl Columns definition (children 1) ExpressionList (children 3) ColumnDeclaration EventTime (children 1) DataType DateTime ColumnDeclaration UserID (children 1) DataType UInt64 ColumnDeclaration Age (children 2) DataType UInt8 Function plus (children 1) ExpressionList (children 2) Identifier EventTime Function toIntervalMonth (children 1) ExpressionList (children 1) Literal UInt64_3 Storage definition (children 3) Function MergeTree (children 1) ExpressionList Function tuple (children 1) ExpressionList Set