database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00
Code Activity

Fix for Bug#30217: Views: changes in metadata behaviour

Browse Source 
between 5.0 and 5.1.
  
The problem was that in the patch for Bug#11986 it was decided
to store original query in UTF8 encoding for the INFORMATION_SCHEMA.
This approach however turned out to be quite difficult to implement
properly. The main problem is to preserve the same IS-output after
dump/restore.
  
So, the fix is to rollback to the previous functionality, but also
to fix it to support multi-character-set-queries properly. The idea
is to generate INFORMATION_SCHEMA-query from the item-tree after
parsing view declaration. The IS-query should:
  - be completely in UTF8;
  - not contain character set introducers.
  
For more information, see WL4052.
This commit is contained in:
anozdrin/alik@quad.
2008-02-22 13:30:33 +03:00
parent 10dca4fd8d
commit 340906f46d
39 changed files with 709 additions and 380 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
sql/sql_lex.h
View File

@ -543,7 +543,7 @@ public:
inline void unclean() { cleaned= 0; }
void reinit_exec_mechanism();
void print(String *str);
void print(String *str, enum_query_type query_type);
bool add_fake_select_lex(THD *thd);
void init_prepare_fake_select_lex(THD *thd);
@ -762,9 +762,11 @@ public:
init_select();
}
bool setup_ref_array(THD *thd, uint order_group_num);
void print(THD *thd, String *str);
static void print_order(String *str, ORDER *order);
void print_limit(THD *thd, String *str);
void print(THD *thd, String *str, enum_query_type query_type);
static void print_order(String *str,
ORDER *order,
enum_query_type query_type);
void print_limit(THD *thd, String *str, enum_query_type query_type);
void fix_prepare_information(THD *thd, Item **conds, Item **having_conds);
/*
Destroy the used execution plan (JOIN) of this subtree (this
@ -1708,8 +1710,6 @@ typedef struct st_lex : public Query_tables_list
*/
bool use_only_table_context;
LEX_STRING view_body_utf8;
/*
Reference to a struct that contains information in various commands
to add/create/drop/change table spaces.