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Changed database, tablename and alias to be LEX_CSTRING

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This was done in, among other things:
- thd->db and thd->db_length
- TABLE_LIST tablename, db, alias and schema_name
- Audit plugin database name
- lex->db
- All db and table names in Alter_table_ctx
- st_select_lex db

Other things:
- Changed a lot of functions to take const LEX_CSTRING* as argument
  for db, table_name and alias. See init_one_table() as an example.
- Changed some function arguments from LEX_CSTRING to const LEX_CSTRING
- Changed some lists from LEX_STRING to LEX_CSTRING
- threads_mysql.result changed because process list_db wasn't always
  correctly updated
- New append_identifier() function that takes LEX_CSTRING* as arguments
- Added new element tmp_buff to Alter_table_ctx to separate temp name
  handling from temporary space
- Ensure we store the length after my_casedn_str() of table/db names
- Removed not used version of rename_table_in_stat_tables()
- Changed Natural_join_column::table_name and db_name() to never return
  NULL (used for print)
- thd->get_db() now returns db as a printable string (thd->db.str or "")
This commit is contained in:
Monty
2018-01-07 18:03:44 +02:00
parent 921c5e9314
commit a7e352b54d
145 changed files with 2361 additions and 2407 deletions
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9
sql/sql_show.h
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@ -84,6 +84,10 @@ int copy_event_to_schema_table(THD *thd, TABLE *sch_table, TABLE *event_table);
bool append_identifier(THD *thd, String *packet, const char *name,
uint length);
static inline bool append_identifier(THD *thd, String *packet, const LEX_CSTRING *name)
{
return append_identifier(thd, packet, name->str, name->length);
}
void mysqld_list_fields(THD *thd,TABLE_LIST *table, const char *wild);
int mysqld_dump_create_info(THD *thd, TABLE_LIST *table_list, int fd);
bool mysqld_show_create_get_fields(THD *thd, TABLE_LIST *table_list,
@ -118,8 +122,9 @@ bool schema_table_store_record(THD *thd, TABLE *table);
void initialize_information_schema_acl();
COND *make_cond_for_info_schema(THD *thd, COND *cond, TABLE_LIST *table);
ST_SCHEMA_TABLE *find_schema_table(THD *thd, const char* table_name, bool *in_plugin);
static inline ST_SCHEMA_TABLE *find_schema_table(THD *thd, const char* table_name)
ST_SCHEMA_TABLE *find_schema_table(THD *thd, const LEX_CSTRING *table_name,
bool *in_plugin);
static inline ST_SCHEMA_TABLE *find_schema_table(THD *thd, const LEX_CSTRING *table_name)
{ bool unused; return find_schema_table(thd, table_name, &unused); }
ST_SCHEMA_TABLE *get_schema_table(enum enum_schema_tables schema_table_idx);