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cleanup: FOREIGN_KEY_INFO

Browse source 
instead of returning strings for CASCADE/RESTRICT
from every storage engine, use enum values

Backport of a3614d33e8
This commit is contained in:
Sergei Golubchik 2018-07-17 14:35:04 +02:00
parent b9bc3c2463
commit 22bcfa011a
11 changed files with 75 additions and 92 deletions
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2
sql/sql_class.h
View file

@ -324,8 +324,6 @@ class Foreign_key: public Key {
public:
enum fk_match_opt { FK_MATCH_UNDEF, FK_MATCH_FULL,
FK_MATCH_PARTIAL, FK_MATCH_SIMPLE};
enum fk_option { FK_OPTION_UNDEF, FK_OPTION_RESTRICT, FK_OPTION_CASCADE,
FK_OPTION_SET_NULL, FK_OPTION_NO_ACTION, FK_OPTION_DEFAULT};
LEX_STRING ref_db;
LEX_STRING ref_table;

4
sql/sql_lex.h
View file

@ -2482,8 +2482,8 @@ struct LEX: public Query_tables_list
uint uint_geom_type;
uint grant, grant_tot_col, which_columns;
enum Foreign_key::fk_match_opt fk_match_option;
enum Foreign_key::fk_option fk_update_opt;
enum Foreign_key::fk_option fk_delete_opt;
enum_fk_option fk_update_opt;
enum_fk_option fk_delete_opt;
uint slave_thd_opt, start_transaction_opt;
int nest_level;
/*

9
sql/sql_show.cc
View file

@ -7534,6 +7534,7 @@ get_referential_constraints_record(THD *thd, TABLE_LIST *tables,
LEX_STRING *db_name, LEX_STRING *table_name)
{
CHARSET_INFO *cs= system_charset_info;
LEX_CSTRING *s;
DBUG_ENTER("get_referential_constraints_record");
if (res)
@ -7578,10 +7579,10 @@ get_referential_constraints_record(THD *thd, TABLE_LIST *tables,
else
table->field[5]->set_null();
table->field[6]->store(STRING_WITH_LEN("NONE"), cs);
table->field[7]->store(f_key_info->update_method->str,
f_key_info->update_method->length, cs);
table->field[8]->store(f_key_info->delete_method->str,
f_key_info->delete_method->length, cs);
s= fk_option_name(f_key_info->update_method);
table->field[7]->store(s->str, s->length, cs);
s= fk_option_name(f_key_info->delete_method);
table->field[8]->store(s->str, s->length, cs);
if (schema_table_store_record(thd, table))
DBUG_RETURN(1);
}

20
sql/sql_yacc.yy
View file

@ -939,7 +939,7 @@ static bool sp_create_assignment_instr(THD *thd, bool no_lookahead)
struct p_elem_val *p_elem_value;
enum index_hint_type index_hint;
enum enum_filetype filetype;
enum Foreign_key::fk_option m_fk_option;
enum enum_fk_option m_fk_option;
enum enum_yes_no_unknown m_yes_no_unk;
Diag_condition_item_name diag_condition_item_name;
Diagnostics_information::Which_area diag_area;
@ -6752,19 +6752,19 @@ opt_on_update_delete:
/* empty */
{
LEX *lex= Lex;
lex->fk_update_opt= Foreign_key::FK_OPTION_UNDEF;
lex->fk_delete_opt= Foreign_key::FK_OPTION_UNDEF;
lex->fk_update_opt= FK_OPTION_UNDEF;
lex->fk_delete_opt= FK_OPTION_UNDEF;
}
| ON UPDATE_SYM delete_option
{
LEX *lex= Lex;
lex->fk_update_opt= $3;
lex->fk_delete_opt= Foreign_key::FK_OPTION_UNDEF;
lex->fk_delete_opt= FK_OPTION_UNDEF;
}
| ON DELETE_SYM delete_option
{
LEX *lex= Lex;
lex->fk_update_opt= Foreign_key::FK_OPTION_UNDEF;
lex->fk_update_opt= FK_OPTION_UNDEF;
lex->fk_delete_opt= $3;
}
| ON UPDATE_SYM delete_option
@ -6784,11 +6784,11 @@ opt_on_update_delete:
;
delete_option:
RESTRICT { $$= Foreign_key::FK_OPTION_RESTRICT; }
| CASCADE { $$= Foreign_key::FK_OPTION_CASCADE; }
| SET NULL_SYM { $$= Foreign_key::FK_OPTION_SET_NULL; }
| NO_SYM ACTION { $$= Foreign_key::FK_OPTION_NO_ACTION; }
| SET DEFAULT { $$= Foreign_key::FK_OPTION_DEFAULT; }
RESTRICT { $$= FK_OPTION_RESTRICT; }
| CASCADE { $$= FK_OPTION_CASCADE; }
| SET NULL_SYM { $$= FK_OPTION_SET_NULL; }
| NO_SYM ACTION { $$= FK_OPTION_NO_ACTION; }
| SET DEFAULT { $$= FK_OPTION_SET_DEFAULT; }
;
normal_key_type:

13
sql/table.cc
View file

@ -7251,3 +7251,16 @@ double KEY::actual_rec_per_key(uint i)
read_stats->get_avg_frequency(i) : (double) rec_per_key[i]);
}
LEX_CSTRING *fk_option_name(enum_fk_option opt)
{
static LEX_CSTRING names[]=
{
{ STRING_WITH_LEN("???") },
{ STRING_WITH_LEN("RESTRICT") },
{ STRING_WITH_LEN("CASCADE") },
{ STRING_WITH_LEN("SET NULL") },
{ STRING_WITH_LEN("NO ACTION") },
{ STRING_WITH_LEN("SET DEFAULT") }
};
return names + opt;
}

9
sql/table.h
View file

@ -1429,6 +1429,9 @@ enum enum_schema_table_state
PROCESSED_BY_JOIN_EXEC
};
enum enum_fk_option { FK_OPTION_UNDEF, FK_OPTION_RESTRICT, FK_OPTION_CASCADE,
FK_OPTION_SET_NULL, FK_OPTION_NO_ACTION, FK_OPTION_SET_DEFAULT};
typedef struct st_foreign_key_info
{
LEX_STRING *foreign_id;
@ -1436,13 +1439,15 @@ typedef struct st_foreign_key_info
LEX_STRING *foreign_table;
LEX_STRING *referenced_db;
LEX_STRING *referenced_table;
LEX_STRING *update_method;
LEX_STRING *delete_method;
enum_fk_option update_method;
enum_fk_option delete_method;
LEX_STRING *referenced_key_name;
List<LEX_STRING> foreign_fields;
List<LEX_STRING> referenced_fields;
} FOREIGN_KEY_INFO;
LEX_CSTRING *fk_option_name(enum_fk_option opt);
#define MY_I_S_MAYBE_NULL 1
#define MY_I_S_UNSIGNED 2

32
storage/innobase/handler/ha_innodb.cc
View file

@ -12461,41 +12461,25 @@ get_foreign_key_info(
} while (++i < foreign->n_fields);
if (foreign->type & DICT_FOREIGN_ON_DELETE_CASCADE) {
len = 7;
ptr = "CASCADE";
f_key_info.delete_method = FK_OPTION_CASCADE;
} else if (foreign->type & DICT_FOREIGN_ON_DELETE_SET_NULL) {
len = 8;
ptr = "SET NULL";
f_key_info.delete_method = FK_OPTION_SET_NULL;
} else if (foreign->type & DICT_FOREIGN_ON_DELETE_NO_ACTION) {
len = 9;
ptr = "NO ACTION";
f_key_info.delete_method = FK_OPTION_NO_ACTION;
} else {
len = 8;
ptr = "RESTRICT";
f_key_info.delete_method = FK_OPTION_RESTRICT;
}
f_key_info.delete_method = thd_make_lex_string(
thd, f_key_info.delete_method, ptr,
static_cast<unsigned int>(len), 1);
if (foreign->type & DICT_FOREIGN_ON_UPDATE_CASCADE) {
len = 7;
ptr = "CASCADE";
f_key_info.update_method = FK_OPTION_CASCADE;
} else if (foreign->type & DICT_FOREIGN_ON_UPDATE_SET_NULL) {
len = 8;
ptr = "SET NULL";
f_key_info.update_method = FK_OPTION_SET_NULL;
} else if (foreign->type & DICT_FOREIGN_ON_UPDATE_NO_ACTION) {
len = 9;
ptr = "NO ACTION";
f_key_info.update_method = FK_OPTION_NO_ACTION;
} else {
len = 8;
ptr = "RESTRICT";
f_key_info.update_method = FK_OPTION_RESTRICT;
}
f_key_info.update_method = thd_make_lex_string(
thd, f_key_info.update_method, ptr,
static_cast<unsigned int>(len), 1);
if (foreign->referenced_index && foreign->referenced_index->name) {
referenced_key_name = thd_make_lex_string(thd,
f_key_info.referenced_key_name,

20
storage/innobase/handler/handler0alter.cc
View file

@ -729,29 +729,29 @@ innobase_set_foreign_key_option(
ut_ad(!foreign->type);
switch (fk_key->delete_opt) {
case Foreign_key::FK_OPTION_NO_ACTION:
case Foreign_key::FK_OPTION_RESTRICT:
case Foreign_key::FK_OPTION_DEFAULT:
case FK_OPTION_NO_ACTION:
case FK_OPTION_RESTRICT:
case FK_OPTION_SET_DEFAULT:
foreign->type = DICT_FOREIGN_ON_DELETE_NO_ACTION;
break;
case Foreign_key::FK_OPTION_CASCADE:
case FK_OPTION_CASCADE:
foreign->type = DICT_FOREIGN_ON_DELETE_CASCADE;
break;
case Foreign_key::FK_OPTION_SET_NULL:
case FK_OPTION_SET_NULL:
foreign->type = DICT_FOREIGN_ON_DELETE_SET_NULL;
break;
}
switch (fk_key->update_opt) {
case Foreign_key::FK_OPTION_NO_ACTION:
case Foreign_key::FK_OPTION_RESTRICT:
case Foreign_key::FK_OPTION_DEFAULT:
case FK_OPTION_NO_ACTION:
case FK_OPTION_RESTRICT:
case FK_OPTION_SET_DEFAULT:
foreign->type |= DICT_FOREIGN_ON_UPDATE_NO_ACTION;
break;
case Foreign_key::FK_OPTION_CASCADE:
case FK_OPTION_CASCADE:
foreign->type |= DICT_FOREIGN_ON_UPDATE_CASCADE;
break;
case Foreign_key::FK_OPTION_SET_NULL:
case FK_OPTION_SET_NULL:
foreign->type |= DICT_FOREIGN_ON_UPDATE_SET_NULL;
break;
}

6
storage/mroonga/ha_mroonga.cpp
View file

@ -15755,10 +15755,8 @@ int ha_mroonga::storage_get_foreign_key_list(THD *thd,
ref_table_buff,
ref_table_name_length,
TRUE);
f_key_info.update_method = thd_make_lex_string(thd, NULL, "RESTRICT",
8, TRUE);
f_key_info.delete_method = thd_make_lex_string(thd, NULL, "RESTRICT",
8, TRUE);
f_key_info.update_method = FK_OPTION_RESTRICT;
f_key_info.delete_method = FK_OPTION_RESTRICT;
f_key_info.referenced_key_name = thd_make_lex_string(thd, NULL, "PRIMARY",
7, TRUE);
LEX_STRING *field_name = thd_make_lex_string(thd, NULL, column_name,

32
storage/xtradb/handler/ha_innodb.cc
View file

@ -13327,41 +13327,25 @@ get_foreign_key_info(
} while (++i < foreign->n_fields);
if (foreign->type & DICT_FOREIGN_ON_DELETE_CASCADE) {
len = 7;
ptr = "CASCADE";
f_key_info.delete_method = FK_OPTION_CASCADE;
} else if (foreign->type & DICT_FOREIGN_ON_DELETE_SET_NULL) {
len = 8;
ptr = "SET NULL";
f_key_info.delete_method = FK_OPTION_SET_NULL;
} else if (foreign->type & DICT_FOREIGN_ON_DELETE_NO_ACTION) {
len = 9;
ptr = "NO ACTION";
f_key_info.delete_method = FK_OPTION_NO_ACTION;
} else {
len = 8;
ptr = "RESTRICT";
f_key_info.delete_method = FK_OPTION_RESTRICT;
}
f_key_info.delete_method = thd_make_lex_string(
thd, f_key_info.delete_method, ptr,
static_cast<unsigned int>(len), 1);
if (foreign->type & DICT_FOREIGN_ON_UPDATE_CASCADE) {
len = 7;
ptr = "CASCADE";
f_key_info.update_method = FK_OPTION_CASCADE;
} else if (foreign->type & DICT_FOREIGN_ON_UPDATE_SET_NULL) {
len = 8;
ptr = "SET NULL";
f_key_info.update_method = FK_OPTION_SET_NULL;
} else if (foreign->type & DICT_FOREIGN_ON_UPDATE_NO_ACTION) {
len = 9;
ptr = "NO ACTION";
f_key_info.update_method = FK_OPTION_NO_ACTION;
} else {
len = 8;
ptr = "RESTRICT";
f_key_info.update_method = FK_OPTION_RESTRICT;
}
f_key_info.update_method = thd_make_lex_string(
thd, f_key_info.update_method, ptr,
static_cast<unsigned int>(len), 1);
if (foreign->referenced_index && foreign->referenced_index->name) {
referenced_key_name = thd_make_lex_string(thd,
f_key_info.referenced_key_name,

20
storage/xtradb/handler/handler0alter.cc
View file

@ -730,29 +730,29 @@ innobase_set_foreign_key_option(
ut_ad(!foreign->type);
switch (fk_key->delete_opt) {
case Foreign_key::FK_OPTION_NO_ACTION:
case Foreign_key::FK_OPTION_RESTRICT:
case Foreign_key::FK_OPTION_DEFAULT:
case FK_OPTION_NO_ACTION:
case FK_OPTION_RESTRICT:
case FK_OPTION_SET_DEFAULT:
foreign->type = DICT_FOREIGN_ON_DELETE_NO_ACTION;
break;
case Foreign_key::FK_OPTION_CASCADE:
case FK_OPTION_CASCADE:
foreign->type = DICT_FOREIGN_ON_DELETE_CASCADE;
break;
case Foreign_key::FK_OPTION_SET_NULL:
case FK_OPTION_SET_NULL:
foreign->type = DICT_FOREIGN_ON_DELETE_SET_NULL;
break;
}
switch (fk_key->update_opt) {
case Foreign_key::FK_OPTION_NO_ACTION:
case Foreign_key::FK_OPTION_RESTRICT:
case Foreign_key::FK_OPTION_DEFAULT:
case FK_OPTION_NO_ACTION:
case FK_OPTION_RESTRICT:
case FK_OPTION_SET_DEFAULT:
foreign->type |= DICT_FOREIGN_ON_UPDATE_NO_ACTION;
break;
case Foreign_key::FK_OPTION_CASCADE:
case FK_OPTION_CASCADE:
foreign->type |= DICT_FOREIGN_ON_UPDATE_CASCADE;
break;
case Foreign_key::FK_OPTION_SET_NULL:
case FK_OPTION_SET_NULL:
foreign->type |= DICT_FOREIGN_ON_UPDATE_SET_NULL;
break;
}