FETCH FIRST clause WITH TIES option

hello ,

The WITH TIES keyword is sql standard that specifies any peers of retained rows

to retained in the result set too .which means according to ordering key the result set can includes additional rows which have ties on the last position, if there are any and It work with ORDER BY query

The attach patch is a finished implementation of it except it did not have a regression test because am not sure of changing the test data set for it and I can’t find fetch first clause regression test too.

Regards

Surafel