is is possible to insert on the same index datas with distinct date format
thinking of that for indexing historical facts as an example
Sometime you know the precise date of an event so you can enter DD/MM/YYYY
and sometime you just know MM/YYYY or even sometime YYYY
so i wonder if it's possible to insert as this or it is needed to fill the missing info by a 'default' value
example 1923 i don't know the month and date so i have to fill with 1/1/1923 or can i insert 1923 and it will positioned as 1/1/1923 by itself.