[COUCHDB-1037] Combining filter and limit in _changes requests produce strange results

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0.1
• Fix Version/s: 1.1, 1.2
• Component/s: Database Core, HTTP Interface

Environment

Distribution: CRUX-2.7, linux 2.6.37, x86, smp
CouchDB 1.0.1, icu 4.2.1, spidermonkey 1.7.0, erlang R14A all build from ports (sources), gcc 4.5.2, glibc 2.12.2

• Skill Level: Committers Level (Medium to Hard)
• Assignee: Filipe David Borba Manana
• Reporter: Mikhail Kolesnik
• Created: 21/Jan/11 12:27
• Updated: 21/Jan/11 14:06
• Resolved: 21/Jan/11 14:06

Description

To reproduce the problem:
create some doc and filter function with doc_type=="test" criteria (total: 2 docs)
create some more docs with

{"doc_type":"test"}

to match filtering
inspect the whole _changes
make sure filter function works
make sure limit works
combine them:
_changes/limit=1&filter=testdocs/testdocsonly - gives empty "results". I guess this should not happen.
_changes/limit=2&filter=testdocs/testdocsonly - works as expected

actual bash script to test it easily and log output attached.