Fix of error messages with big help of serg

Author: sanja-byelkin

mysql-test/main/gis2.result

@@ -33,6 +33,6 @@ SET timestamp=default;
 create table t1 (p point not null default if(unix_timestamp()>10,POINT(1,1),LineString(Point(0,0),Point(1,1))));
 set timestamp=10;
 alter table t1 add column i int;
-ERROR 22007: Incorrect POINT value: 'GEOMETRYCOLLECTION' for column `test`.`(temporary)`.`p` at row 1
+ERROR 22007: Incorrect POINT value: 'GEOMETRYCOLLECTION' for column `test`.`t1`.`p` at row 1
 drop table t1;
 SET timestamp=default;

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

@@ -795,7 +795,7 @@ SET timestamp=default;
 create table t1 (p point not null default if(unix_timestamp()>10,POINT(1,1),LineString(Point(0,0),Point(1,1)))) ENGINE=innodb;
 set timestamp=10;
 alter table t1 add column i int;
-ERROR 22007: Incorrect POINT value: 'GEOMETRYCOLLECTION' for column `test`.`(temporary)`.`p` at row 1
+ERROR 22007: Incorrect POINT value: 'GEOMETRYCOLLECTION' for column `test`.`t1`.`p` at row 1
 drop table t1;
 SET timestamp=default;
 CREATE OR REPLACE TABLE t1 (a INT) ENGINE=InnoDB;

sql/sql_table.cc

@@ -9695,7 +9695,7 @@ do_continue:;
  thd->create_and_open_tmp_table(new_db_type, &frm,
  alter_ctx.get_tmp_path(),
  alter_ctx.new_db.str,
- alter_ctx.tmp_name.str,
+ alter_ctx.new_name.str,
  false, true)))
  goto err_new_table_cleanup;
 

storage/innobase/handler/handler0alter.cc

@@ -5034,18 +5034,15 @@ prepare_inplace_alter_table_dict(
 goto err_exit;
 }
 
-size_tdblen = ctx->old_table->name.dblen() + 1;
-size_ttablen = altered_table->s->table_name.length;
+size_tprefixlen= strlen(mysql_data_home) + 1;
+size_ttablen = altered_table->s->path.length - prefixlen;
 const char* part = ctx->old_table->name.part();
 size_tpartlen = part ? strlen(part) : 0;
 char*	new_table_name = static_cast<char*>(
-mem_heap_alloc(ctx->heap,
- dblen + tablen + partlen + 1));
-memcpy(new_table_name, ctx->old_table->name.m_name, dblen);
-memcpy(new_table_name + dblen,
- altered_table->s->table_name.str, tablen);
-memcpy(new_table_name + dblen + tablen,
- part ? part : "", partlen + 1);
+mem_heap_alloc(ctx->heap, tablen + partlen + 1));
+memcpy(new_table_name,
+ altered_table->s->path.str + prefixlen, tablen);
+memcpy(new_table_name + tablen, part ? part : "", partlen + 1);
 ulint	n_cols = 0;
 ulint	n_v_cols = 0;
 dtuple_t*	defaults;