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-rw-r--r--sql/sql_yacc.yy31
1 files changed, 13 insertions, 18 deletions
diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy
index 5a594b4a06a..907eb354e6d 100644
--- a/sql/sql_yacc.yy
+++ b/sql/sql_yacc.yy
@@ -56,8 +56,6 @@
int yylex(void *yylval, void *yythd);
-const LEX_STRING null_lex_str= {0,0};
-
#define yyoverflow(A,B,C,D,E,F) \
{ \
ulong val= *(F); \
@@ -1147,6 +1145,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b, ulong *yystacksize);
IDENT_sys TEXT_STRING_sys TEXT_STRING_literal
NCHAR_STRING opt_component key_cache_name
sp_opt_label BIN_NUM label_ident TEXT_STRING_filesystem ident_or_empty
+ opt_constraint constraint opt_ident
%type <lex_str_ptr>
opt_table_alias
@@ -1155,8 +1154,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b, ulong *yystacksize);
table_ident table_ident_nodb references xid
%type <simple_string>
- remember_name remember_end opt_ident opt_db text_or_password
- opt_constraint constraint
+ remember_name remember_end opt_db text_or_password
%type <string>
text_string opt_gconcat_separator
@@ -1738,7 +1736,7 @@ create:
my_parse_error(ER(ER_SYNTAX_ERROR));
MYSQL_YYABORT;
}
- key= new Key($2, $4.str, &lex->key_create_info, 0,
+ key= new Key($2, $4, &lex->key_create_info, 0,
lex->col_list);
if (key == NULL)
MYSQL_YYABORT;
@@ -4873,8 +4871,7 @@ key_def:
'(' key_list ')' key_options
{
LEX *lex=Lex;
- const char *key_name= $3 ? $3 : $1;
- Key *key= new Key($2, key_name, &lex->key_create_info, 0,
+ Key *key= new Key($2, $3.str ? $3 : $1, &lex->key_create_info, 0,
lex->col_list);
if (key == NULL)
MYSQL_YYABORT;
@@ -4884,9 +4881,7 @@ key_def:
| opt_constraint FOREIGN KEY_SYM opt_ident '(' key_list ')' references
{
LEX *lex=Lex;
- const char *key_name= $1 ? $1 : $4;
- const char *fkey_name = $4 ? $4 : key_name;
- Key *key= new Foreign_key(fkey_name, lex->col_list,
+ Key *key= new Foreign_key($4.str ? $4 : $1, lex->col_list,
$8,
lex->ref_list,
lex->fk_delete_opt,
@@ -4895,7 +4890,7 @@ key_def:
if (key == NULL)
MYSQL_YYABORT;
lex->alter_info.key_list.push_back(key);
- key= new Key(Key::MULTIPLE, key_name,
+ key= new Key(Key::MULTIPLE, $1.str ? $1 : $4,
&default_key_create_info, 1,
lex->col_list);
if (key == NULL)
@@ -4925,7 +4920,7 @@ check_constraint:
;
opt_constraint:
- /* empty */ { $$=(char*) 0; }
+ /* empty */ { $$= null_lex_str; }
| constraint { $$= $1; }
;
@@ -5430,14 +5425,14 @@ opt_ref_list:
ref_list:
ref_list ',' ident
{
- Key_part_spec *key= new Key_part_spec($3.str);
+ Key_part_spec *key= new Key_part_spec($3, 0);
if (key == NULL)
MYSQL_YYABORT;
Lex->ref_list.push_back(key);
}
| ident
{
- Key_part_spec *key= new Key_part_spec($1.str);
+ Key_part_spec *key= new Key_part_spec($1, 0);
if (key == NULL)
MYSQL_YYABORT;
Lex->ref_list.push_back(key);
@@ -5584,7 +5579,7 @@ key_list:
key_part:
ident
{
- $$= new Key_part_spec($1.str);
+ $$= new Key_part_spec($1, 0);
if ($$ == NULL)
MYSQL_YYABORT;
}
@@ -5595,15 +5590,15 @@ key_part:
{
my_error(ER_KEY_PART_0, MYF(0), $1.str);
}
- $$= new Key_part_spec($1.str,(uint) key_part_len);
+ $$= new Key_part_spec($1, (uint) key_part_len);
if ($$ == NULL)
MYSQL_YYABORT;
}
;
opt_ident:
- /* empty */ { $$=(char*) 0; /* Default length */ }
- | field_ident { $$=$1.str; }
+ /* empty */ { $$= null_lex_str; }
+ | field_ident { $$= $1; }
;
opt_component: