In a view multi-query request, set view type for each query

[nickva]

View type can be overridden if user explicitly sets reduce=false, for example.
This can happen for individual query.

Previously this didn't happen and view_type was set once at the top, just
based on the view itself. For for example, a query like this:

{
  "queries": [{
    "include_docs": true,
    "reduce": false
  }]
}

would fail with:

{"error":"query_parse_error","reason":"`include_docs` is invalid for reduce"}

But it shouldn't fail because user explicitly disabled reduce for that one.

To fix, make sure to call set_view_type for each query's args.

Jira: COUCHDB-3070

[kxepal]

+1

[nickva]

Updated pr with 2 tests. One checks when default query type is not overridden then include_docs=true should throw a validation exception. Other checks if user explicitly sets reduce=false and then query should succeed.

[iilyak]

+1

    Running test function(s):
      chttpd_view:check_multi_query_reduce_view_overrides_test_/0
======================== EUnit ========================
chttpd_view:103: t_check_include_docs_throw_validation_error...[0.019 s] ok
chttpd_view:112: t_check_user_can_override_individual_query_type...[0.008 s] ok
=======================================================
  2 tests passed.