#11: Column families for RocksDB-SE

- Basic support for Column Families (writes/reads go the right column
  family).
- CFs are specified per-index in the index comment:
  INDEX (col1,col2) COMMENT 'cf_name'

mysql-test/r/rocksdb.result

@@ -1347,3 +1347,55 @@ select * from t1 where id1 = 3;
 id1	id2	link_type	visibility	data	time	version
 3	3	3	1	3	3	3
 drop table t0,t1;
+#
+# Test column families
+# 
+create table t1 (
+pk int primary key,
+col1 int, 
+col2 int,
+key(col1) comment 'cf3',
+key(col2) comment 'cf4'
+) engine=rocksdb;
+insert into t1 values (1,1,1), (2,2,2), (3,3,3), (4,4,4), (5,5,5);
+explain
+select * from t1 where col1=2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ref	col1	col1	5	const	10	NULL
+select * from t1 where col1=2;
+pk	col1	col2
+2	2	2
+explain
+select * from t1 where col2=3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ref	col2	col2	5	const	10	NULL
+select * from t1 where col2=3;
+pk	col1	col2
+3	3	3
+select * from t1 where pk=4;
+pk	col1	col2
+4	4	4
+drop table t1;
+#
+# Try primary key in a non-default CF:
+#
+create table t1 (
+pk int,
+col1 int, 
+col2 int,
+key(col1) comment 'cf3',
+key(col2) comment 'cf4',
+primary key (pk) comment 'cf5'
+) engine=rocksdb;
+insert into t1 values (1,1,1), (2,2,2), (3,3,3), (4,4,4), (5,5,5);
+explain
+select * from t1 where col1=2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ref	col1	col1	5	const	10	NULL
+select * from t1 where col1=2;
+pk	col1	col2
+2	2	2
+select * from t1 where pk=4;
+pk	col1	col2
+4	4	4
+drop table t1;

mysql-test/t/rocksdb.test

@@ -1190,3 +1190,50 @@ select * from t1 where id1 = 3;
 
 drop table t0,t1;
 
+--echo #
+--echo # Test column families
+--echo # 
+
+create table t1 (
+  pk int primary key,
+  col1 int, 
+  col2 int,
+  key(col1) comment 'cf3',
+  key(col2) comment 'cf4'
+) engine=rocksdb;
+
+insert into t1 values (1,1,1), (2,2,2), (3,3,3), (4,4,4), (5,5,5);
+
+explain
+select * from t1 where col1=2;
+select * from t1 where col1=2;
+
+explain
+select * from t1 where col2=3;
+select * from t1 where col2=3;
+
+select * from t1 where pk=4;
+
+drop table t1;
+
+--echo #
+--echo # Try primary key in a non-default CF:
+--echo #
+create table t1 (
+  pk int,
+  col1 int, 
+  col2 int,
+  key(col1) comment 'cf3',
+  key(col2) comment 'cf4',
+  primary key (pk) comment 'cf5'
+) engine=rocksdb;
+insert into t1 values (1,1,1), (2,2,2), (3,3,3), (4,4,4), (5,5,5);
+
+explain
+select * from t1 where col1=2;
+select * from t1 where col1=2;
+
+select * from t1 where pk=4;
+
+
+drop table t1;