preload.result, key_cache.result, preload.test, key_cache.test, sql_yacc.yy:

  Fixed bug #2602 in CACHE INDEX, LOAD INDEX

mysql-test/r/key_cache.result

@@ -100,7 +100,7 @@ p	i	a
 4	3	zzzz
 update t1 set p=2 where p=1;
 update t2 set i=2 where i=1;
-cache index t1 keys (`primary`) in keycache1;
+cache index t1 key (`primary`) in keycache1;
 Table	Op	Msg_type	Msg_text
 test.t1	assign_to_keycache	status	OK
 explain select p from t1;
@@ -177,7 +177,7 @@ yyyy
 zzzz
 cache index t1 in unknown_key_cache;
 ERROR HY000: Unknown key cache 'unknown_key_cache'
-cache index t1 keys (unknown_key) in keycache1;
+cache index t1 key (unknown_key) in keycache1;
 Table	Op	Msg_type	Msg_text
 test.t1	assign_to_keycache	error	Key column 'unknown_key' doesn't exist in table
 test.t1	assign_to_keycache	status	Operation failed

mysql-test/r/preload.result

@@ -117,7 +117,7 @@ set session preload_buffer_size=1*1024;
 select @@preload_buffer_size;
 @@preload_buffer_size
 1024
-load index into cache t1, t2 keys (primary,b) ignore leaves;
+load index into cache t1, t2 key (primary,b) ignore leaves;
 Table	Op	Msg_type	Msg_text
 test.t1	preload_keys	status	OK
 test.t2	preload_keys	status	OK
@@ -141,7 +141,7 @@ show status like "key_read%";
 Variable_name	Value
 Key_read_requests	0
 Key_reads	0
-load index into cache t3, t2 keys (primary,b) ;
+load index into cache t3, t2 key (primary,b) ;
 Table	Op	Msg_type	Msg_text
 test.t3	preload_keys	error	Table 'test.t3' doesn't exist
 test.t2	preload_keys	status	OK
@@ -155,7 +155,7 @@ show status like "key_read%";
 Variable_name	Value
 Key_read_requests	0
 Key_reads	0
-load index into cache t3 keys (b), t2 keys (c) ;
+load index into cache t3 key (b), t2 key (c) ;
 Table	Op	Msg_type	Msg_text
 test.t3	preload_keys	error	Table 'test.t3' doesn't exist
 test.t2	preload_keys	error	Key column 'c' doesn't exist in table

mysql-test/t/key_cache.test

@@ -75,7 +75,7 @@ select * from t2;
 update t1 set p=2 where p=1;
 update t2 set i=2 where i=1;
 
-cache index t1 keys (`primary`) in keycache1;
+cache index t1 key (`primary`) in keycache1;
 
 explain select p from t1;
 select p from t1;
@@ -101,7 +101,7 @@ select a from t2;
 # Test some error conditions
 --error 1283
 cache index t1 in unknown_key_cache;
-cache index t1 keys (unknown_key) in keycache1;
+cache index t1 key (unknown_key) in keycache1;
 
 select @@keycache2.key_buffer_size;
 select @@keycache2.key_cache_block_size;

mysql-test/t/preload.test

@@ -81,7 +81,7 @@ flush tables; flush status;
 show status like "key_read%";
 set session preload_buffer_size=1*1024;
 select @@preload_buffer_size;
-load index into cache t1, t2 keys (primary,b) ignore leaves;
+load index into cache t1, t2 key (primary,b) ignore leaves;
 show status like "key_read%";
 select count(*) from t1 where b = 'test1';
 select count(*) from t2 where b = 'test1';
@@ -89,12 +89,12 @@ show status like "key_read%";
 
 flush tables; flush status;
 show status like "key_read%";
-load index into cache t3, t2 keys (primary,b) ;
+load index into cache t3, t2 key (primary,b) ;
 show status like "key_read%";
 
 flush tables; flush status;
 show status like "key_read%";
-load index into cache t3 keys (b), t2 keys (c) ;
+load index into cache t3 key (b), t2 key (c) ;
 show status like "key_read%";
 
 drop table t1, t2;

sql/sql_yacc.yy

@@ -1615,11 +1615,6 @@ opt_key_or_index:
 	| key_or_index
 	;
 
-opt_keys_or_index:
-	/* empty */ {}
-	| keys_or_index
-	;
-
 keys_or_index:
 	KEYS {}
 	| INDEX {}
@@ -2120,7 +2115,7 @@ cache_keys_spec:
 
 cache_key_list_or_empty:
 	/* empty */	{ Lex->select_lex.use_index_ptr= 0; }
-	| opt_keys_or_index '(' key_usage_list2 ')'
+	| opt_key_or_index '(' key_usage_list2 ')'
 	  {
             SELECT_LEX *sel= &Lex->select_lex;
 	    sel->use_index_ptr= &sel->use_index;