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Parser: versioned JOIN fix

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Moved opt_for_system_time_clause from table identifier (which binds
it to single table) to table expression.
This commit is contained in:
Aleksey Midenkov 2016-10-13 13:30:22 +00:00
parent 5c4473dc74
commit 2db17e6624
5 changed files with 46 additions and 44 deletions
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1
sql/sql_lex.cc
View file

@ -2278,6 +2278,7 @@ void st_select_lex::init_select()
with_dep= 0;
join= 0;
lock_type= TL_READ_DEFAULT;
vers_conditions.empty();
}
/*

3
sql/sql_lex.h
View file

@ -991,6 +991,9 @@ public:
/* it is for correct printing SELECT options */
thr_lock_type lock_type;
/* System Versioning conditions */
vers_select_conds_t vers_conditions;
void init_query();
void init_select();
st_select_lex_unit* master_unit() { return (st_select_lex_unit*) master; }

42
sql/sql_select.cc
View file

@ -688,11 +688,6 @@ setup_for_system_time(THD *thd, TABLE_LIST *tables, COND **conds, SELECT_LEX *se
{
if (table->table && table->table->versioned())
versioned_tables++;
else if (table->system_versioning.type != FOR_SYSTEM_TIME_UNSPECIFIED)
{
my_error(ER_TABLE_DOESNT_SUPPORT_SYSTEM_VERSIONING, MYF(0), table->table_name);
DBUG_RETURN(-1);
}
}
if (versioned_tables == 0)
@ -746,7 +741,7 @@ setup_for_system_time(THD *thd, TABLE_LIST *tables, COND **conds, SELECT_LEX *se
}
Item *cond1= 0, *cond2= 0, *curr= 0;
switch (table->system_versioning.type)
switch (select_lex->vers_conditions.type)
{
case FOR_SYSTEM_TIME_UNSPECIFIED:
if (table->table->versioned_by_sql())
@ -764,21 +759,21 @@ setup_for_system_time(THD *thd, TABLE_LIST *tables, COND **conds, SELECT_LEX *se
break;
case FOR_SYSTEM_TIME_AS_OF:
cond1= new (thd->mem_root) Item_func_le(thd, row_start,
table->system_versioning.start);
select_lex->vers_conditions.start);
cond2= new (thd->mem_root) Item_func_gt(thd, row_end,
table->system_versioning.start);
select_lex->vers_conditions.start);
break;
case FOR_SYSTEM_TIME_FROM_TO:
cond1= new (thd->mem_root) Item_func_lt(thd, row_start,
table->system_versioning.end);
select_lex->vers_conditions.end);
cond2= new (thd->mem_root) Item_func_ge(thd, row_end,
table->system_versioning.start);
select_lex->vers_conditions.start);
break;
case FOR_SYSTEM_TIME_BETWEEN:
cond1= new (thd->mem_root) Item_func_le(thd, row_start,
table->system_versioning.end);
select_lex->vers_conditions.end);
cond2= new (thd->mem_root) Item_func_ge(thd, row_end,
table->system_versioning.start);
select_lex->vers_conditions.start);
break;
default:
DBUG_ASSERT(0);
@ -797,10 +792,10 @@ setup_for_system_time(THD *thd, TABLE_LIST *tables, COND **conds, SELECT_LEX *se
else
thd->change_item_tree(conds, cond1);
table->system_versioning.is_moved_to_where= true;
table->vers_moved_to_where= true;
}
}
}
} // if (... table->table->versioned())
} // for (table= tables; ...)
if (arena)
{
@ -24935,29 +24930,30 @@ bool mysql_explain_union(THD *thd, SELECT_LEX_UNIT *unit, select_result *result)
void TABLE_LIST::print_system_versioning(THD *thd, table_map eliminated_tables,
String *str, enum_query_type query_type)
{
if (system_versioning.is_moved_to_where)
if (vers_moved_to_where)
return;
DBUG_ASSERT(select_lex);
// system versioning
if (system_versioning.type != FOR_SYSTEM_TIME_UNSPECIFIED)
if (select_lex->vers_conditions.type != FOR_SYSTEM_TIME_UNSPECIFIED)
{
switch (system_versioning.type)
switch (select_lex->vers_conditions.type)
{
case FOR_SYSTEM_TIME_AS_OF:
str->append(STRING_WITH_LEN(" for system_time as of "));
system_versioning.start->print(str, query_type);
select_lex->vers_conditions.start->print(str, query_type);
break;
case FOR_SYSTEM_TIME_FROM_TO:
str->append(STRING_WITH_LEN(" for system_time from timestamp "));
system_versioning.start->print(str, query_type);
select_lex->vers_conditions.start->print(str, query_type);
str->append(STRING_WITH_LEN(" to "));
system_versioning.end->print(str, query_type);
select_lex->vers_conditions.end->print(str, query_type);
break;
case FOR_SYSTEM_TIME_BETWEEN:
str->append(STRING_WITH_LEN(" for system_time between timestamp "));
system_versioning.start->print(str, query_type);
select_lex->vers_conditions.start->print(str, query_type);
str->append(STRING_WITH_LEN(" and "));
system_versioning.end->print(str, query_type);
select_lex->vers_conditions.end->print(str, query_type);
break;
default:
DBUG_ASSERT(0);

18
sql/sql_yacc.yy
View file

@ -758,7 +758,6 @@ Virtual_column_info *add_virtual_expression(THD *thd, Item *expr)
uint sp_instr_addr;
/* structs */
system_versioning_for_select system_versioning;
LEX_STRING lex_str;
LEX_SYMBOL symbol;
Lex_string_with_metadata_st lex_string_with_metadata;
@ -1954,7 +1953,6 @@ END_OF_INPUT
%type <NONE> window_frame_extent;
%type <frame_exclusion> opt_window_frame_exclusion;
%type <window_frame_bound> window_frame_start window_frame_bound;
%type <system_versioning> opt_for_system_time_clause;
%type <NONE>
'-' '+' '*' '/' '%' '(' ')'
@ -8628,6 +8626,7 @@ table_expression:
opt_group_clause
opt_having_clause
opt_window_clause
opt_for_system_time_clause
;
opt_table_expression:
@ -8664,14 +8663,12 @@ select_options:
opt_for_system_time_clause:
/* empty */
{
$$.init();
}
{}
| FOR_SYSTEM_TIME_SYM
AS OF_SYM
TIMESTAMP simple_expr
{
$$.init(FOR_SYSTEM_TIME_AS_OF, $5);
Lex->current_select->vers_conditions.init(FOR_SYSTEM_TIME_AS_OF, $5);
}
| FOR_SYSTEM_TIME_SYM
AS OF_SYM
@ -8680,7 +8677,7 @@ opt_for_system_time_clause:
Item *item= new (thd->mem_root) Item_func_now_local(thd, 6);
if (item == NULL)
MYSQL_YYABORT;
$$.init(FOR_SYSTEM_TIME_AS_OF, item);
Lex->current_select->vers_conditions.init(FOR_SYSTEM_TIME_AS_OF, item);
}
| FOR_SYSTEM_TIME_SYM
FROM
@ -8688,7 +8685,7 @@ opt_for_system_time_clause:
TO_SYM
TIMESTAMP simple_expr
{
$$.init(FOR_SYSTEM_TIME_FROM_TO, $4, $7);
Lex->current_select->vers_conditions.init(FOR_SYSTEM_TIME_FROM_TO, $4, $7);
}
| FOR_SYSTEM_TIME_SYM
BETWEEN_SYM
@ -8696,7 +8693,7 @@ opt_for_system_time_clause:
AND_SYM
TIMESTAMP simple_expr
{
$$.init(FOR_SYSTEM_TIME_BETWEEN, $4, $7);
Lex->current_select->vers_conditions.init(FOR_SYSTEM_TIME_BETWEEN, $4, $7);
}
;
@ -11107,7 +11104,7 @@ table_primary_ident:
SELECT_LEX *sel= Select;
sel->table_join_options= 0;
}
table_ident opt_use_partition opt_table_alias opt_key_definition opt_for_system_time_clause
table_ident opt_use_partition opt_table_alias opt_key_definition
{
if (!($$= Select->add_table_to_list(thd, $2, $4,
Select->get_table_join_options(),
@ -11117,7 +11114,6 @@ table_primary_ident:
$3)))
MYSQL_YYABORT;
Select->add_joined_table($$);
$$->system_versioning= $6;
}
;

26
sql/table.h
View file

@ -1814,26 +1814,32 @@ class Item_in_subselect;
enum for_system_time_type
{
FOR_SYSTEM_TIME_UNSPECIFIED, FOR_SYSTEM_TIME_AS_OF,
FOR_SYSTEM_TIME_FROM_TO, FOR_SYSTEM_TIME_BETWEEN
FOR_SYSTEM_TIME_UNSPECIFIED = 0,
FOR_SYSTEM_TIME_AS_OF,
FOR_SYSTEM_TIME_FROM_TO,
FOR_SYSTEM_TIME_BETWEEN
};
/** System versioning support. */
struct system_versioning_for_select
struct vers_select_conds_t
{
enum for_system_time_type type;
Item *start, *end;
bool is_moved_to_where;
void empty()
{
type= FOR_SYSTEM_TIME_UNSPECIFIED;
start= end= NULL;
}
void init(
const enum for_system_time_type t=FOR_SYSTEM_TIME_UNSPECIFIED,
Item * const s=NULL,
Item * const e=NULL)
const enum for_system_time_type t,
Item * const s,
Item * const e= NULL)
{
type= t;
start= s;
end= e;
is_moved_to_where= false;
}
};
@ -2293,8 +2299,8 @@ struct TABLE_LIST
TABLE_LIST *first_leaf_for_name_resolution();
TABLE_LIST *last_leaf_for_name_resolution();
/** System versioning support. */
system_versioning_for_select system_versioning;
/* System Versioning */
bool vers_moved_to_where;
/**
@brief