Auto-merge from mysql-next-mr-bugfixing.

mysql-test/r/alter_table.result

@@ -1354,3 +1354,15 @@ DROP i,
 ADD i INT UNSIGNED NOT NULL AUTO_INCREMENT,
 AUTO_INCREMENT = 1;
 DROP TABLE t1;
+CREATE TABLE t1 (a CHAR(1), PRIMARY KEY (a(255)));
+ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
+CREATE TABLE t1 (a CHAR(1));
+ALTER TABLE t1 ADD PRIMARY KEY (a(20));
+ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
+ALTER TABLE t1 ADD KEY (a(20));
+ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
+CREATE UNIQUE INDEX i1 ON t1 (a(20));
+ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
+CREATE INDEX i2 ON t1 (a(20));
+ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
+DROP TABLE t1;

mysql-test/r/gis.result

@@ -1058,3 +1058,33 @@ SELECT Polygon(12345123,'');
 Polygon(12345123,'')
 NULL
 End of 5.1 tests
+CREATE TABLE t1(
+col0 BINARY NOT NULL,
+col2 TIMESTAMP,
+SPATIAL INDEX i1 (col0)
+) ENGINE=MyISAM;
+ERROR 42000: A SPATIAL index may only contain a geometrical type column
+CREATE TABLE t1 (
+col0 BINARY NOT NULL,
+col2 TIMESTAMP
+) ENGINE=MyISAM;
+CREATE SPATIAL INDEX idx0 ON t1(col0);
+ERROR 42000: A SPATIAL index may only contain a geometrical type column
+ALTER TABLE t1 ADD SPATIAL INDEX i1 (col0);
+ERROR 42000: A SPATIAL index may only contain a geometrical type column
+CREATE TABLE t2 (
+col0 INTEGER NOT NULL,
+col1 POINT,
+col2 POINT
+);
+CREATE SPATIAL INDEX idx0 ON t2 (col1, col2);
+ERROR HY000: Incorrect arguments to SPATIAL INDEX
+CREATE TABLE t3 (
+col0 INTEGER NOT NULL,
+col1 POINT,
+col2 LINESTRING,
+SPATIAL INDEX i1 (col1, col2)
+);
+ERROR HY000: Incorrect arguments to SPATIAL INDEX
+DROP TABLE t1;
+DROP TABLE t2;

mysql-test/r/group_min_max.result

@@ -2686,7 +2686,7 @@ a	c	COUNT(DISTINCT c, a, b)
 1	1	1
 1	1	1
 1	1	1
-2	1	1
+1	1	1
 2	1	1
 2	1	1
 2	1	1
@@ -2714,7 +2714,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	range	NULL	a	10	NULL	9	Using index for group-by
 SELECT a, COUNT(DISTINCT b), SUM(DISTINCT b) FROM t2 GROUP BY a;
 a	COUNT(DISTINCT b)	SUM(DISTINCT b)
-2	8	36
+1	8	36
 2	8	36
 EXPLAIN SELECT COUNT(DISTINCT b), SUM(DISTINCT b) FROM t2 GROUP BY a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -2761,7 +2761,7 @@ SELECT 42 * (a + c + COUNT(DISTINCT c, a, b)) FROM t2 GROUP BY a, b, c;
 126
 126
 126
-168
+126
 168
 168
 168
@@ -2779,3 +2779,24 @@ SELECT (SUM(DISTINCT a) + MAX(b)) FROM t2 GROUP BY a;
 10
 DROP TABLE t1,t2;
 # end of WL#3220 tests
+#
+# Bug#50539: Wrong result when loose index scan is used for an aggregate
+#            function with distinct
+#
+CREATE TABLE t1 (
+f1 int(11) NOT NULL DEFAULT '0',
+f2 char(1) NOT NULL DEFAULT '',
+PRIMARY KEY (f1,f2)
+) ;
+insert into t1 values(1,'A'),(1 , 'B'), (1, 'C'), (2, 'A'), 
+(3, 'A'), (3, 'B'), (3, 'C'), (3, 'D');
+SELECT f1, COUNT(DISTINCT f2) FROM t1 GROUP BY f1;
+f1	COUNT(DISTINCT f2)
+1	3
+2	1
+3	4
+explain SELECT f1, COUNT(DISTINCT f2) FROM t1 GROUP BY f1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	range	NULL	PRIMARY	5	NULL	9	Using index for group-by (scanning)
+drop table t1;
+# End of test#50539.

mysql-test/t/alter_table.test

@@ -1089,3 +1089,31 @@ ALTER TABLE t1
   ADD i INT UNSIGNED NOT NULL AUTO_INCREMENT,
   AUTO_INCREMENT = 1;
 DROP TABLE t1;
+
+
+#
+# Bug#50542 5.5.x doesn't check length of key prefixes: 
+#           corruption and crash results
+#
+# This case is related to Bug#31031 (above)
+# A statement where the index key is larger/wider than
+# the column type, should cause an error
+#
+--error ER_WRONG_SUB_KEY
+CREATE TABLE t1 (a CHAR(1), PRIMARY KEY (a(255)));
+
+# Test other variants of creating indices
+CREATE TABLE t1 (a CHAR(1));
+#  ALTER TABLE
+--error ER_WRONG_SUB_KEY
+ALTER TABLE t1 ADD PRIMARY KEY (a(20));
+--error ER_WRONG_SUB_KEY
+ALTER TABLE t1 ADD KEY (a(20));
+#  CREATE INDEX
+--error ER_WRONG_SUB_KEY
+CREATE UNIQUE INDEX i1 ON t1 (a(20));
+--error ER_WRONG_SUB_KEY
+CREATE INDEX i2 ON t1 (a(20));
+# cleanup
+DROP TABLE t1;
+

mysql-test/t/gis.test

@@ -726,3 +726,48 @@ SELECT Polygon(1234512,'');
 SELECT Polygon(12345123,'');
 
 --echo End of 5.1 tests
+
+#
+# Bug #50574 5.5.x allows spatial indexes on non-spatial 
+#           columns, causing crashes!
+#
+--error ER_SPATIAL_MUST_HAVE_GEOM_COL
+CREATE TABLE t1(
+  col0 BINARY NOT NULL,
+  col2 TIMESTAMP,
+  SPATIAL INDEX i1 (col0)
+) ENGINE=MyISAM;
+
+# Test other ways to add indices
+CREATE TABLE t1 (
+  col0 BINARY NOT NULL,
+  col2 TIMESTAMP
+) ENGINE=MyISAM;
+
+--error ER_SPATIAL_MUST_HAVE_GEOM_COL
+CREATE SPATIAL INDEX idx0 ON t1(col0);
+
+--error ER_SPATIAL_MUST_HAVE_GEOM_COL
+ALTER TABLE t1 ADD SPATIAL INDEX i1 (col0);
+
+CREATE TABLE t2 (
+  col0 INTEGER NOT NULL,
+  col1 POINT,
+  col2 POINT
+);
+
+--error ER_WRONG_ARGUMENTS
+CREATE SPATIAL INDEX idx0 ON t2 (col1, col2);
+
+--error ER_WRONG_ARGUMENTS
+CREATE TABLE t3 (
+  col0 INTEGER NOT NULL,
+  col1 POINT,
+  col2 LINESTRING,
+  SPATIAL INDEX i1 (col1, col2)
+);
+
+# cleanup
+DROP TABLE t1;
+DROP TABLE t2;
+

mysql-test/t/group_min_max.test

@@ -1166,3 +1166,22 @@ SELECT (SUM(DISTINCT a) + MAX(b)) FROM t2 GROUP BY a;
 DROP TABLE t1,t2;
 
 --echo # end of WL#3220 tests
+
+--echo #
+--echo # Bug#50539: Wrong result when loose index scan is used for an aggregate
+--echo #            function with distinct
+--echo #
+CREATE TABLE t1 (
+  f1 int(11) NOT NULL DEFAULT '0',
+  f2 char(1) NOT NULL DEFAULT '',
+  PRIMARY KEY (f1,f2)
+) ;
+insert into t1 values(1,'A'),(1 , 'B'), (1, 'C'), (2, 'A'), 
+(3, 'A'), (3, 'B'), (3, 'C'), (3, 'D');
+
+SELECT f1, COUNT(DISTINCT f2) FROM t1 GROUP BY f1;
+explain SELECT f1, COUNT(DISTINCT f2) FROM t1 GROUP BY f1;
+ 
+drop table t1;
+--echo # End of test#50539.
+

sql/log_event.cc

@@ -4717,10 +4717,7 @@ int Load_log_event::do_apply_event(NET* net, Relay_log_info const *rli,
     thd->warning_info->opt_clear_warning_info(thd->query_id);
 
     TABLE_LIST tables;
-    bzero((char*) &tables,sizeof(tables));
-    tables.db= thd->strmake(thd->db, thd->db_length);
-    tables.alias = tables.table_name = (char*) table_name;
-    tables.lock_type = TL_WRITE;
+    tables.init_one_table(thd->db, table_name, TL_WRITE);
     tables.updating= 1;
 
     // the table will be opened in mysql_load    

sql/opt_range.cc

@@ -10955,17 +10955,7 @@ int QUICK_GROUP_MIN_MAX_SELECT::get_next()
   } while ((result == HA_ERR_KEY_NOT_FOUND || result == HA_ERR_END_OF_FILE) &&
            is_last_prefix != 0);
 
-  if (result == 0)
-  {
-    /*
-      Partially mimic the behavior of end_select_send. Copy the
-      field data from Item_field::field into Item_field::result_field
-      of each non-aggregated field (the group fields, and optionally
-      other fields in non-ANSI SQL mode).
-    */
-    copy_fields(&join->tmp_table_param);
-  }
-  else if (result == HA_ERR_KEY_NOT_FOUND)
+  if (result == HA_ERR_KEY_NOT_FOUND)
     result= HA_ERR_END_OF_FILE;
 
   DBUG_RETURN(result);

sql/share/errmsg-utf8.txt

@@ -6316,3 +6316,6 @@ ER_INSIDE_TRANSACTION_PREVENTS_SWITCH_BINLOG_DIRECT
   eng "Cannot modify @@session.binlog_direct_non_transactional_updates inside a transaction"
 ER_STORED_FUNCTION_PREVENTS_SWITCH_BINLOG_DIRECT
   eng "Cannot change the binlog direct flag inside a stored function or trigger"
+ER_SPATIAL_MUST_HAVE_GEOM_COL 42000
+  eng "A SPATIAL index may only contain a geometrical type column"
+

sql/sql_select.cc

@@ -12316,6 +12316,12 @@ end_send(JOIN *join, JOIN_TAB *join_tab __attribute__((unused)),
   if (!end_of_records)
   {
     int error;
+    if (join->tables &&
+        join->join_tab->is_using_loose_index_scan())
+    {
+      /* Copy non-aggregated fields when loose index scan is used. */
+      copy_fields(&join->tmp_table_param);
+    }
     if (join->having && join->having->val_int() == 0)
       DBUG_RETURN(NESTED_LOOP_OK);               // Didn't match having
     error=0;

sql/sql_table.cc

@@ -3196,11 +3196,19 @@ mysql_prepare_create_table(THD *thd, HA_CREATE_INFO *create_info,
       {
 	column->length*= sql_field->charset->mbmaxlen;
 
-        if (key->type == Key::SPATIAL && column->length)
+        if (key->type == Key::SPATIAL)
         {
-          my_error(ER_WRONG_SUB_KEY, MYF(0));
-	  DBUG_RETURN(TRUE);
-	}
+          if (column->length)
+          {
+            my_error(ER_WRONG_SUB_KEY, MYF(0));
+            DBUG_RETURN(TRUE);
+          }
+          if (!f_is_geom(sql_field->pack_flag))
+          {
+            my_error(ER_SPATIAL_MUST_HAVE_GEOM_COL, MYF(0));
+            DBUG_RETURN(TRUE);
+          }
+        }
 
 	if (f_is_blob(sql_field->pack_flag) ||
             (f_is_geom(sql_field->pack_flag) && key->type != Key::SPATIAL))
@@ -3295,22 +3303,21 @@ mysql_prepare_create_table(THD *thd, HA_CREATE_INFO *create_info,
 	    }
 	  }
 	}
+        // Catch invalid use of partial keys 
 	else if (!f_is_geom(sql_field->pack_flag) &&
-                 ((column->length > length &&
-                   !Field::type_can_have_key_part (sql_field->sql_type)) ||
-                  ((f_is_packed(sql_field->pack_flag) ||
-                    ((file->ha_table_flags() & HA_NO_PREFIX_CHAR_KEYS) &&
-                     (key_info->flags & HA_NOSAME))) &&
-                   column->length != length)))
-        {
-          /* Catch invalid uses of partial keys.
-             A key is identified as 'partial' if column->length != length.
-             A partial key is invalid if they data type does
-             not allow it, or the field is packed (as in MyISAM),
-             or the storage engine doesn't allow prefixed search and
-             the key is primary key.
-          */
-
+                 // is the key partial? 
+                 column->length != length &&
+                 // is prefix length bigger than field length? 
+                 (column->length > length ||
+                  // can the field have a partial key? 
+                  !Field::type_can_have_key_part (sql_field->sql_type) ||
+                  // a packed field can't be used in a partial key
+                  f_is_packed(sql_field->pack_flag) ||
+                  // does the storage engine allow prefixed search?
+                  ((file->ha_table_flags() & HA_NO_PREFIX_CHAR_KEYS) &&
+                   // and is this a 'unique' key?
+                   (key_info->flags & HA_NOSAME))))
+        {         
 	  my_message(ER_WRONG_SUB_KEY, ER(ER_WRONG_SUB_KEY), MYF(0));
 	  DBUG_RETURN(TRUE);
 	}