Additional storage engine called "blackhole". Customer request, and for that matter a Zawodny request. With this you can alter table to a type of table that would never store data. Its a /dev/null for a database.

1 files changed, 30 insertions, 0 deletions

diff --git a/acinclude.m4 b/acinclude.m4
index 5ddd8952c42..8d98987e65e 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -1511,6 +1511,36 @@ dnl END OF MYSQL_CHECK_EXAMPLE SECTION
 dnl ---------------------------------------------------------------------------
 
 dnl ---------------------------------------------------------------------------
+dnl Macro: MYSQL_CHECK_BLACKHOLEDB
+dnl Sets HAVE_BLACKHOLE_DB if --with-blackhole-storage-engine is used
+dnl ---------------------------------------------------------------------------
+AC_DEFUN([MYSQL_CHECK_BLACKHOLEDB], [
+  AC_ARG_WITH([blackhole-storage-engine],
+              [
+  --with-blackhole-storage-engine
+                          Enable the Blackhole Storage Engine],
+              [blackholedb="$withval"],
+              [blackholedb=no])
+  AC_MSG_CHECKING([for blackhole storage engine])
+
+  case "$blackholedb" in
+    yes )
+      AC_DEFINE([HAVE_BLACKHOLE_DB], [1], [Builds Blackhole DB])
+      AC_MSG_RESULT([yes])
+      [blackholedb=yes]
+      ;;
+    * )
+      AC_MSG_RESULT([no])
+      [blackholedb=no]
+      ;;
+  esac
+
+])
+dnl ---------------------------------------------------------------------------
+dnl END OF MYSQL_CHECK_BLACKHOLE SECTION
+dnl ---------------------------------------------------------------------------
+
+dnl ---------------------------------------------------------------------------
 dnl Macro: MYSQL_CHECK_ARCHIVEDB
 dnl Sets HAVE_ARCHIVE_DB if --with-archive-storage-engine is used
 dnl ---------------------------------------------------------------------------