Some strange behavior around $all. Unclear to me what is right, but it does seem that 2.5 should not be matching this document. The way I see it is that "a" does not contain the object [""], it IS that object, thus this should not be matched.
In 2.5:
> db.repro.insert({_id: 0, a: [""]}) > db.repro.find({a: {$all: [[""]]}}) { "_id" : 0, "a" : [ "" ] } > 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 }
2.4:
> mydb.repro.insert({_id: 0, a: [""]}) > mydb.repro.find({a: {$all: [[""]]}}) > mydb.runCommand({buildinfo: 1}) { "version" : "2.4.9", "gitVersion" : "52fe0d21959e32a5bdbecdc62057db386e4e029c", "sysInfo" : "Darwin bs-osx-106-x86-64-2.10gen.cc 10.8.0 Darwin Kernel Version 10.8.0: Tue Jun 7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64 x86_64 BOOST_LIB_VERSION=1_49", "loaderFlags" : "-fPIC -pthread -rdynamic -m64", "compilerFlags" : "-Wnon-virtual-dtor -Woverloaded-virtual -fPIC -fno-strict-aliasing -ggdb -pthread -Wall -Wsign-compare -Wno-unknown-pragmas -Winvalid-pch -O3 -m64", "allocator" : "system", "versionArray" : [ 2, 4, 9, 0 ], "javascriptEngine" : "V8", "bits" : 64, "debug" : false, "maxBsonObjectSize" : 16777216, "ok" : 1 }
- duplicates
-
SERVER-11444 $lt/$lte/$gte/$gt behaves differently with array operand
- Closed
- is related to
-
SERVER-12473 $all and dotted fields difference behavior in 2.4 and 2.5
- Closed