SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 4) ExpressionList (children 2) Identifier query_kind Identifier query TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier system.query_log Function and (children 1) ExpressionList (children 5) Function like (children 1) ExpressionList (children 2) Identifier log_comment Literal \'%system.query_log%\' Function equals (children 1) ExpressionList (children 2) Identifier type Literal \'QueryStart\' Function greaterOrEquals (children 1) ExpressionList (children 2) Identifier event_date Function yesterday (children 1) ExpressionList Function equals (children 1) ExpressionList (children 2) Identifier current_database Function currentDatabase (children 1) ExpressionList Function equals (children 1) ExpressionList (children 2) Identifier is_internal Literal UInt64_0 ExpressionList (children 1) OrderByElement (children 1) Identifier event_time_microseconds