On Travis enable performance schema which is needed for t/56connattr.t test

Author: pali

.travis.yml

@@ -435,7 +435,7 @@ before_install:
       mkdir -p "$SANDBOX_HOME" || exit 1 ;
       ln -s "$SANDBOX_CACHE_FILE" "$SANDBOX_FILE" || exit 1 ;
       if [ `echo "$VERSION" | sed 's/\.//;s/\..*//'` -ge 55 ]; then
-        SANDBOX_OPTIONS="$SANDBOX_OPTIONS --init_options=--innodb_use_native_aio=0 --my_clause=innodb_use_native_aio=0" ;
+        SANDBOX_OPTIONS="$SANDBOX_OPTIONS --init_options=--innodb_use_native_aio=0 --my_clause=innodb_use_native_aio=0 --my_clause=performance_schema=ON" ;
       fi ;
     fi
   - if [ "$CONC_DB" = "MySQL" ]; then