Different results get returned for identical query, seems to me that the 2.4 result is more correct than the 2.5.5-pre one here.
In 2.4.9:
> db.repro.insert({ "_id" : 0, "c" : [ 0,1 ] }) > db.repro.find({"c.c":null}) { "_id" : 0, "c" : [ 0, 1 ] } > db.version() 2.4.9
In 2.5:
> db.repro.insert({ "_id" : 0, "c" : [ 0,1 ] }) > db.repro.find({"c.c":null}) > db.runCommand({"buildinfo": 1}) { "version" : "2.5.5-pre-", "gitVersion" : "f65a0b814b8c77e3fbe90bca0c061c9b77f6acdb", "OpenSSLVersion" : "", "sysInfo" : "Darwin Andrew-Emil-MacBook-Pro.local 12.4.0 Darwin Kernel Version 12.4.0: Wed May 1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64 x86_64 BOOST_LIB_VERSION=1_49", "loaderFlags" : "-fPIC -pthread -Wl,-bind_at_load -mmacosx-version-min=10.6", "compilerFlags" : "-Wnon-virtual-dtor -Woverloaded-virtual -fPIC -fno-strict-aliasing -ggdb -pthread -Wall -Wsign-compare -Wno-unknown-pragmas -Winvalid-pch -Werror -pipe -O3 -Wno-unused-function -Wno-deprecated-declarations -mmacosx-version-min=10.6", "allocator" : "tcmalloc", "versionArray" : [ 2, 5, 5, -100 ], "javascriptEngine" : "V8", "bits" : 64, "debug" : false, "maxBsonObjectSize" : 16777216, "ok" : 1 }
- duplicates
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SERVER-11422 $gte is behaving differently comparing nulls
- Closed
- is duplicated by
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SERVER-14406 Differences in null matching between 2.4 and 2.6
- Closed
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SERVER-14874 Querying on {$ne:null} on embedded documents within arrays inconsistent between 2.4 and 2.6
- Closed
- is related to
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SERVER-11414 $lt/$gt behaves differently when comparing null
- Closed
- related to
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SERVER-11777 Null matching on fields in docs in arrays changed from 2.4 to 2.5
- Closed