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igor@rurik.mysql.com
2004-06-25 06:54:01 -07:00
parent 6fa845d7c0
commit 29f616205a
2 changed files with 1647 additions and 380 deletions
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1875
sql/sql_select.cc
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File diff suppressed because it is too large Load Diff

98
sql/sql_yacc.yy
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@ -700,6 +700,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
%type <table_list>
join_table_list join_table
table_factor table_ref
%type <date_time_type> date_time_type;
%type <interval> interval
@ -4430,59 +4431,80 @@ when_list2:
sel->when_list.head()->push_back($5);
};
join_table_list:
'(' join_table_list ')' { $$=$2; }
table_ref:
table_factor { $$=$1; }
| join_table { $$=$1; }
| join_table_list ',' join_table_list { $$=$3; }
| join_table_list normal_join join_table_list { $$=$3; }
| join_table_list STRAIGHT_JOIN join_table_list
{ $$=$3 ; $1->next->straight=1; }
| join_table_list normal_join join_table_list ON expr
{
LEX *lex= Lex;
if (!($$= lex->current_select->nest_last_join(lex->thd)))
YYABORT;
}
;
join_table_list:
table_ref { $$=$1; }
| join_table_list ',' table_ref { $$=$3; }
;
join_table:
table_ref normal_join table_ref { $$=$3; }
| table_ref STRAIGHT_JOIN table_factor
{ $3->straight=1; $$=$3 ; }
| table_ref normal_join table_ref ON expr
{ add_join_on($3,$5); $$=$3; }
| join_table_list normal_join join_table_list
| table_ref normal_join table_ref
USING
{
SELECT_LEX *sel= Select;
sel->db1=$1->db; sel->table1=$1->alias;
sel->db2=$3->db; sel->table2=$3->alias;
sel->save_names_for_using_list($1, $3);
}
'(' using_list ')'
{ add_join_on($3,$7); $$=$3; }
| join_table_list LEFT opt_outer JOIN_SYM join_table_list ON expr
| table_ref LEFT opt_outer JOIN_SYM table_factor ON expr
{ add_join_on($5,$7); $5->outer_join|=JOIN_TYPE_LEFT; $$=$5; }
| join_table_list LEFT opt_outer JOIN_SYM join_table_list
| table_ref LEFT opt_outer JOIN_SYM table_factor
{
SELECT_LEX *sel= Select;
sel->db1=$1->db; sel->table1=$1->alias;
sel->db2=$5->db; sel->table2=$5->alias;
sel->save_names_for_using_list($1, $5);
}
USING '(' using_list ')'
{ add_join_on($5,$9); $5->outer_join|=JOIN_TYPE_LEFT; $$=$5; }
| join_table_list NATURAL LEFT opt_outer JOIN_SYM join_table_list
| table_ref NATURAL LEFT opt_outer JOIN_SYM table_factor
{
add_join_natural($1,$1->next);
$1->next->outer_join|=JOIN_TYPE_LEFT;
add_join_natural($1,$6);
$6->outer_join|=JOIN_TYPE_LEFT;
$$=$6;
}
| join_table_list RIGHT opt_outer JOIN_SYM join_table_list ON expr
{ add_join_on($1,$7); $1->outer_join|=JOIN_TYPE_RIGHT; $$=$5; }
| join_table_list RIGHT opt_outer JOIN_SYM join_table_list
| table_ref RIGHT opt_outer JOIN_SYM table_factor ON expr
{
LEX *lex= Lex;
if (!($$= lex->current_select->convert_right_join()))
YYABORT;
add_join_on($$, $7);
}
| table_ref RIGHT opt_outer JOIN_SYM table_factor
{
SELECT_LEX *sel= Select;
sel->db1=$1->db; sel->table1=$1->alias;
sel->db2=$5->db; sel->table2=$5->alias;
sel->save_names_for_using_list($1, $5);
}
USING '(' using_list ')'
{ add_join_on($1,$9); $1->outer_join|=JOIN_TYPE_RIGHT; $$=$5; }
| join_table_list NATURAL RIGHT opt_outer JOIN_SYM join_table_list
{
add_join_natural($1->next,$1);
$1->outer_join|=JOIN_TYPE_RIGHT;
$$=$6;
LEX *lex= Lex;
if (!($$= lex->current_select->convert_right_join()))
YYABORT;
add_join_on($$, $9);
}
| join_table_list NATURAL JOIN_SYM join_table_list
{ add_join_natural($1,$1->next); $$=$4; };
| table_ref NATURAL RIGHT opt_outer JOIN_SYM table_factor
{
add_join_natural($6,$1);
LEX *lex= Lex;
if (!($$= lex->current_select->convert_right_join()))
YYABORT;
}
| table_ref NATURAL JOIN_SYM table_factor
{ add_join_natural($1,$4); $$=$4; };
normal_join:
JOIN_SYM {}
@ -4490,7 +4512,7 @@ normal_join:
| CROSS JOIN_SYM {}
;
join_table:
table_factor:
{
SELECT_LEX *sel= Select;
sel->use_index_ptr=sel->ignore_index_ptr=0;
@ -4506,8 +4528,21 @@ join_table:
sel->get_use_index(),
sel->get_ignore_index())))
YYABORT;
sel->add_joined_table($$);
}
| '{' ident join_table LEFT OUTER JOIN_SYM join_table ON expr '}'
| '('
{
LEX *lex= Lex;
if (lex->current_select->init_nested_join(lex->thd))
YYABORT;
}
join_table_list ')'
{
LEX *lex= Lex;
if (!($$= lex->current_select->end_nested_join(lex->thd)))
YYABORT;
}
| '{' ident table_ref LEFT OUTER JOIN_SYM table_ref ON expr '}'
{ add_join_on($7,$9); $7->outer_join|=JOIN_TYPE_LEFT; $$=$7; }
| '(' SELECT_SYM select_derived ')' opt_table_alias
{
@ -4520,6 +4555,7 @@ join_table:
(List<String> *)0)))
YYABORT;
lex->current_select->add_joined_table($$);
};
select_derived: