WL#4403 deprecate @log and @slow_log_queries variables

Adds --general_log_file, --slow_query_log_file command-
line options to match system variables of the same names.

Deprecates --log, --log-slow-queries command-line options
and log, log_slow_queries system-variables for v7.0; they
are superseded by general_log/general_log_file and
slow_query_log/slow_query_log_file, respectively.

mysql-test/r/log_basic.result:
  Change deprecated system variable "log" to
  general log.
mysql-test/r/log_state.result:
  Show that all log-related server variables that
  should throw deprecation warnings do, and the
  others don't.
mysql-test/t/log_basic.test:
  Change deprecated system variable "log" to
  general log.
mysql-test/t/log_state.test:
  Show that all log-related server variables that
  should throw deprecation warnings do, and the
  others don't.
sql/mysqld.cc:
  Add command-line options --general_log_file and
  --slow_query_log_file to match server options of
  the same name.
  
  Deprecated --log and --log-slow-queries command-line
  options; they are superseded by --general-log/
  --general-log-file and --slow-query-log/--slow-query-log-file,
  respectively
sql/set_var.cc:
  Deprecate system-variables log in favour of general_log,
  log_slow_queries in favour of slow_query_log for 7.0,
  both for value- and DEFAULT-setting.

1 files changed, 26 insertions, 0 deletions

diff --git a/mysql-test/t/log_state.test b/mysql-test/t/log_state.test
index 2fd2cabc97c..977b74aa1e3 100644
--- a/mysql-test/t/log_state.test
+++ b/mysql-test/t/log_state.test
@@ -259,6 +259,32 @@ SET GLOBAL slow_query_log_file = @slow_query_log_file_saved;
 
 ###########################################################################
 
+
+
+## WL#4403 - deprecate @log and @slow_log_queries variables
+
+## these are all deprecated -- show for command-line as well!
+--echo deprecated:
+SET GLOBAL log = 0;
+SET GLOBAL log_slow_queries = 0;
+SET GLOBAL log = DEFAULT;
+SET GLOBAL log_slow_queries = DEFAULT;
+
+## these are NOT deprecated
+--echo not deprecated:
+SELECT @@global.general_log_file INTO @my_glf;
+SELECT @@global.slow_query_log_file INTO @my_sqlf;
+SET GLOBAL general_log = 0;
+SET GLOBAL slow_query_log = 0;
+SET GLOBAL general_log_file = 'WL4403_G.log';
+SET GLOBAL slow_query_log_file = 'WL4403_SQ.log';
+SET GLOBAL general_log_file = @my_glf;
+SET GLOBAL slow_query_log_file = @my_sqlf;
+SET GLOBAL general_log = DEFAULT;
+SET GLOBAL slow_query_log = DEFAULT;
+
+
+
 --echo End of 5.1 tests
 
 --enable_ps_protocol