WL#1190 preparatory work needed for compatability with future online add column

sql/ha_ndbcluster.cc:
  WL#1190 preparatory work needed for compatability with future online add column
  - make forcing of var part reference into ndb storage default, may be overridden by table setting ROW_FORMAT=FIXED
mysql-test/r/ndb_row_format.result:
  New BitKeeper file ``mysql-test/r/ndb_row_format.result''
mysql-test/t/ndb_row_format.test:
  New BitKeeper file ``mysql-test/t/ndb_row_format.test''

mysql-test/r/ndb_partition_key.result

@@ -57,6 +57,7 @@ Number of primary keys: 3
 Length of frm data: #
 Row Checksum: 1
 Row GCI: 1
+ForceVarPart: 1
 TableStatus: Retrieved
 -- Attributes -- 
 a Int PRIMARY KEY AT=FIXED ST=MEMORY

mysql-test/r/ndb_row_format.result

@@ -0,0 +1,39 @@
+DROP TABLE IF EXISTS t1,t2,t3,t4,t5,t6,t7;
+drop database if exists mysqltest;
+CREATE TABLE t1
+( a INT KEY,
+b VARCHAR(10) )
+ROW_FORMAT=FIXED
+ENGINE=NDB;
+ERROR HY000: Can't create table 'test.t1' (errno: 138)
+SHOW WARNINGS;
+Level	Code	Message
+Error	1466	Table storage engine 'ndbcluster' does not support the create option 'Row format FIXED incompatible with variable sized attributes'
+Error	1005	Can't create table 'test.t1' (errno: 138)
+CREATE TABLE t1
+( a INT KEY,
+b INT )
+ENGINE=NDB;
+ForceVarPart: 1
+DROP TABLE t1;
+CREATE TABLE t1
+( a INT KEY,
+b INT )
+ROW_FORMAT=DEFAULT
+ENGINE=NDB;
+ForceVarPart: 1
+DROP TABLE t1;
+CREATE TABLE t1
+( a INT KEY,
+b INT )
+ROW_FORMAT=FIXED
+ENGINE=NDB;
+ForceVarPart: 0
+DROP TABLE t1;
+CREATE TABLE t1
+( a INT KEY,
+b INT )
+ROW_FORMAT=DYNAMIC
+ENGINE=NDB;
+ForceVarPart: 1
+DROP TABLE t1;

mysql-test/t/ndb_row_format.test

@@ -0,0 +1,62 @@
+-- source include/have_ndb.inc
+-- source include/not_embedded.inc
+
+--disable_warnings
+DROP TABLE IF EXISTS t1,t2,t3,t4,t5,t6,t7;
+drop database if exists mysqltest;
+--enable_warnings
+
+#
+# some negative tests
+#
+
+# cannot have ROW_FORMAT=FIXED and var attrs mixed
+--error 1005
+CREATE TABLE t1
+  ( a INT KEY,
+    b VARCHAR(10) )
+  ROW_FORMAT=FIXED
+  ENGINE=NDB;
+
+# warnings give more detail on the error
+SHOW WARNINGS;
+
+
+#
+# Check force var part for different ROW_FORMAT
+#
+
+# default => ForceVarPart: 1
+CREATE TABLE t1
+  ( a INT KEY,
+    b INT )
+  ENGINE=NDB;
+--exec $NDB_TOOLS_DIR/ndb_desc --no-defaults -d test t1 | grep ForceVarPart
+DROP TABLE t1;
+
+# explicit DEFAULT => ForceVarPart: 1
+CREATE TABLE t1
+  ( a INT KEY,
+    b INT )
+  ROW_FORMAT=DEFAULT
+  ENGINE=NDB;
+--exec $NDB_TOOLS_DIR/ndb_desc --no-defaults -d test t1 | grep ForceVarPart
+DROP TABLE t1;
+
+# FIXED => ForceVarPart: 0
+CREATE TABLE t1
+  ( a INT KEY,
+    b INT )
+  ROW_FORMAT=FIXED
+  ENGINE=NDB;
+--exec $NDB_TOOLS_DIR/ndb_desc --no-defaults -d test t1 | grep ForceVarPart
+DROP TABLE t1;
+
+# DYNAMIC => ForceVarPart: 1
+CREATE TABLE t1
+  ( a INT KEY,
+    b INT )
+  ROW_FORMAT=DYNAMIC
+  ENGINE=NDB;
+--exec $NDB_TOOLS_DIR/ndb_desc --no-defaults -d test t1 | grep ForceVarPart
+DROP TABLE t1;