How does the updating put mapping API works to _all field?

does the updating post using put mapping API cause reindexing of _all field ????

i know the field type and something could not be updated, ive updated the date format successfully.

1 so i want to know whether the updating to the date type field causes reindexing to _all field or not.

2 if not, could the _all field be correctly searched with the new date format?

Updating a mapping does not cause any reindex operation.

thank you for your help
ive thought that updating the format, will cause es reindex the filed indexed in _all field.
because the date field will be put into _all field as a string,
updating a date field from YY-MM-dd to YY-MM-dd hh:mm:ss will not make any change to the date field string in _all?

before updating : field format: 1980-01-01, field as string in _all could be 1980-01-01 ?

after updating: field format: 1980-01-01 01:01:01, field as string in _all could be 1980-01-01 01:01:01?

or im just misunderstanding. change date format will not cause any effection to the date value stored in the date format. and also will not change the date value string stored in _all field.

Field _all won't change.

And BTW using _all is often a bad idea. You would prefer copy_to feature.

thank you for your help. i see.

and ive made a test. just as you said, updating format will not cause the old date change format.

i thought it would cause the old date changing format form YYYY-MM-dd to YYYY-MM-dd 00:00:00 something.

and from my test. i see.
before changing: using gte and lte to match a date range is like this:

[date_start(YYYY-MM-dd), date_end(YYYY-MM-dd)]
d1: 01-03
d2: 01-04
d3: 01-05

when i filter "lte 01-04" the document d2:01-04 will match,
when i filter "gte 01-04" the document d2:01-04 will match,
the result is reasonable.

after changing: the query use date format YYYY-MM-dd HH:mm:ss

[date_start(YYYY-MM-dd), date_end(YYYY-MM-dd))
d1: 01-03
d2: 01-04
d3: 01-05
d4: 01-04 12:00

when i filter "lte 01-04 12:00" the document d2:01-04 will match, even if it doesnt have HH:mm:ss value.
when i filter "gte 01-04 12:00" the document d2:01-04 will not match,
i dont get it. why gte does not act like lte

You need to send a full script which reproduces your problem otherwise it's hard to understand and get the full picture.

Check also your mapping and make sure your field is a date.

thanks for you attention.
ive made my execution steps log from xshell.
ive descripted the problem in it.

the file is too big to show here.


ok, ive reply the email with a attach, i think it wont be delivery.

this is the link

Well. I wrote

Also please read

ok. im sorry. i cant open im in china.
version im using is 1.5.0. i forget telling you.
how about give me a email-address if its necessary.

How about

cant open either.:confused: