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smarter ALTER TABLE - don't copy the table if only comment or default values are changed

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sql/handler.cc:
  do not delete the table in the "unkonwn" handler (makes no sense anyway)
sql/handler.h:
  more HA_CREATE_USED flags
sql/sql_lex.h:
  more ALTER_ flags, no alter_info->is_simple anymore
sql/sql_parse.cc:
  no alter_info->is_simple anymore
sql/sql_table.cc:
  do not rename the table in the "unkonwn" handler (makes no sense anyway)
  smarter ALTER TABLE - don't copy the table if only comment or default values are changed
sql/sql_yacc.yy:
  specify what ALTER is todo with flags, not alter_info->is_simple
sql/unireg.cc:
  create frm only (but not in the handler) if requested
This commit is contained in:
unknown
2004-10-21 18:10:58 +02:00
parent 00bbd9a252
commit a01f45e59d
7 changed files with 151 additions and 114 deletions
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2
sql/sql_parse.cc
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@@ -5862,7 +5862,6 @@ int mysql_create_index(THD *thd, TABLE_LIST *table_list, List<Key> &keys)
List<create_field> fields;
ALTER_INFO alter_info;
alter_info.flags= ALTER_ADD_INDEX;
alter_info.is_simple= 0;
HA_CREATE_INFO create_info;
DBUG_ENTER("mysql_create_index");
bzero((char*) &create_info,sizeof(create_info));
@@ -5886,7 +5885,6 @@ int mysql_drop_index(THD *thd, TABLE_LIST *table_list, ALTER_INFO *alter_info)
create_info.default_table_charset= thd->variables.collation_database;
alter_info->clear();
alter_info->flags= ALTER_DROP_INDEX;
alter_info->is_simple= 0;
DBUG_RETURN(mysql_alter_table(thd,table_list->db,table_list->real_name,
&create_info, table_list,
fields, keys, 0, (ORDER*)0,