Refuse to load fields from _source when using the fields option

[jpountz]

Spin-off from #14474. The fields option is intended to load stored fields. However it will try to load these fields from the source if they are not stored. This causes confusion because then eg. wildcards don't work.

We should deprecate the ability to load fields from _source and remove it in 3.0.

[bleskes]

+1

On 3 nov. 2015 6:06 PM +0000, Adrien [email protected], wrote:

Spin-off from#14474(#14474). Thefieldsoption is intended to load stored fields. However it will try to load these fields from the source if they are not stored. This causes confusion because then eg. wildcards don't work.

We should deprecate the ability to load fields from _source and remove it in 3.0.

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Reply to this email directly orview it on GitHub(#14489).

[nik9000]

We should deprecate the ability to load fields from _source and remove it in 3.0.

It was a great backwards compatibility step when going from 0.90.x to 1.x but I agree, it can go in 3.0.