Merged fix for bug #58650 "Failing assertion:

primary_key_no == -1 || primary_key_no == 0"
into mysql-5.5 tree.

mysql-test/include/gis_keys.inc

@@ -44,3 +44,19 @@ SELECT COUNT(*) FROM t2 IGNORE INDEX(p) WHERE p=POINTFROMTEXT('POINT(1 2)');
 DROP TABLE t1, t2;
 
 --echo End of 5.0 tests
+
+
+--echo #
+--echo # Test for bug #58650 "Failing assertion: primary_key_no == -1 ||
+--echo #                      primary_key_no == 0".
+--echo #
+--disable_warnings
+drop table if exists t1;
+--enable_warnings
+--echo # The minimal test case.
+create table t1 (a int not null, b linestring not null, unique key b (b(12)), unique key a (a));
+drop table t1;
+--echo # The original test case.
+create table t1 (a int not null, b linestring not null, unique key b (b(12)));
+create unique index a on t1(a);
+drop table t1;

mysql-test/r/gis.result

@@ -960,6 +960,18 @@ COUNT(*)
 2
 DROP TABLE t1, t2;
 End of 5.0 tests
+#
+# Test for bug #58650 "Failing assertion: primary_key_no == -1 ||
+#                      primary_key_no == 0".
+#
+drop table if exists t1;
+# The minimal test case.
+create table t1 (a int not null, b linestring not null, unique key b (b(12)), unique key a (a));
+drop table t1;
+# The original test case.
+create table t1 (a int not null, b linestring not null, unique key b (b(12)));
+create unique index a on t1(a);
+drop table t1;
 create table `t1` (`col002` point)engine=myisam;
 insert into t1 values (),(),();
 select min(`col002`) from t1 union select `col002` from t1;

mysql-test/suite/innodb/r/innodb_gis.result

@@ -585,5 +585,17 @@ COUNT(*)
 2
 DROP TABLE t1, t2;
 End of 5.0 tests
+#
+# Test for bug #58650 "Failing assertion: primary_key_no == -1 ||
+#                      primary_key_no == 0".
+#
+drop table if exists t1;
+# The minimal test case.
+create table t1 (a int not null, b linestring not null, unique key b (b(12)), unique key a (a));
+drop table t1;
+# The original test case.
+create table t1 (a int not null, b linestring not null, unique key b (b(12)));
+create unique index a on t1(a);
+drop table t1;
 create table t1 (g geometry not null, spatial gk(g)) engine=innodb;
 ERROR HY000: The used table type doesn't support SPATIAL indexes

sql/field.cc

@@ -9073,6 +9073,7 @@ void Create_field::create_length_to_internal_length(void)
   case MYSQL_TYPE_MEDIUM_BLOB:
   case MYSQL_TYPE_LONG_BLOB:
   case MYSQL_TYPE_BLOB:
+  case MYSQL_TYPE_GEOMETRY:
   case MYSQL_TYPE_VAR_STRING:
   case MYSQL_TYPE_STRING:
   case MYSQL_TYPE_VARCHAR: