SERVER-16632 Encode TypeBits along with KeyStrings in WT indexes

This allows covered queries to recover the original data, without collapsing
cases that compare equally (such as 1 and 1.0, or 0.0 and -0.0). However, no
attempt is made to preserve specific versions of NaN, they all become
quiet_NaN().

This resolves this issue discussed in SERVER-16762.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/mongo/dbtests/jsobjtests.cpp b/src/mongo/dbtests/jsobjtests.cpp
index eb441f45d72..d769e66a043 100644
--- a/src/mongo/dbtests/jsobjtests.cpp
+++ b/src/mongo/dbtests/jsobjtests.cpp
@@ -809,6 +809,9 @@ namespace JsobjTests {
 
                 b.append( "g" , -123.456 );
 
+                b.append( "h" , 0.0 );
+                b.append( "i" , -0.0 );
+
                 BSONObj x = b.obj();
                 keyTest(x);
 
@@ -822,6 +825,8 @@ namespace JsobjTests {
 
                 ASSERT_EQUALS( "-123.456" , x["g"].toString( false , true ) );
 
+                ASSERT_EQUALS( "0.0" , x["h"].toString( false , true ) );
+                ASSERT_EQUALS( "-0.0" , x["i"].toString( false , true ) );
             }
         };