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SQL: renamed vers_thd_get_now() to THD::query_start_TIME()

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This commit is contained in:
Aleksey Midenkov
2017-06-02 16:53:24 +03:00
parent 397a891538
commit f915fe8eae
3 changed files with 19 additions and 22 deletions
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31
sql/sql_table.cc
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@ -5155,20 +5155,10 @@ static void make_unique_constraint_name(THD *thd, LEX_STRING *name,
** Alter a table definition
****************************************************************************/
// Works as NOW(6)
static MYSQL_TIME vers_thd_get_now(THD *thd)
{
MYSQL_TIME now;
thd->variables.time_zone->gmt_sec_to_TIME(&now, thd->query_start());
now.second_part= thd->query_start_sec_part();
thd->time_zone_used= 1;
return now;
}
static void vers_table_name_date(THD *thd, const char *table_name,
char *new_name, size_t new_name_size)
{
const MYSQL_TIME now= vers_thd_get_now(thd);
const MYSQL_TIME now= thd->query_start_TIME();
my_snprintf(new_name, new_name_size, "%s_%04d%02d%02d_%02d%02d%02d_%06d",
table_name, now.year, now.month, now.day, now.hour, now.minute,
now.second, now.second_part);
@ -5185,7 +5175,7 @@ bool operator!=(const MYSQL_TIME &lhs, const MYSQL_TIME &rhs)
// Sets sys_trx_end=MAX for rows with sys_trx_end=now(6)
static bool vers_reset_alter_copy(THD *thd, TABLE *table)
{
const MYSQL_TIME now= vers_thd_get_now(thd);
const MYSQL_TIME query_start= thd->query_start_TIME();
READ_RECORD info;
int error= 0;
@ -5201,7 +5191,7 @@ static bool vers_reset_alter_copy(THD *thd, TABLE *table)
MYSQL_TIME current;
if (table->vers_end_field()->get_date(&current, 0))
goto err_read_record;
if (current != now)
if (current != query_start)
{
continue;
}
@ -9793,7 +9783,7 @@ copy_data_between_tables(THD *thd, TABLE *from, TABLE *to,
bool make_unversioned= from->versioned() && !to->versioned();
bool keep_versioned= from->versioned() && to->versioned();
Field *to_sys_trx_start= NULL, *to_sys_trx_end= NULL, *from_sys_trx_end= NULL;
MYSQL_TIME now;
MYSQL_TIME query_start;
DBUG_ENTER("copy_data_between_tables");
/* Two or 3 stages; Sorting, copying data and update indexes */
@ -9895,7 +9885,7 @@ copy_data_between_tables(THD *thd, TABLE *from, TABLE *to,
if (make_versioned)
{
now= vers_thd_get_now(thd);
query_start= thd->query_start_TIME();
to_sys_trx_start= to->vers_start_field();
to_sys_trx_end= to->vers_end_field();
}
@ -9908,10 +9898,7 @@ copy_data_between_tables(THD *thd, TABLE *from, TABLE *to,
to->file->vers_auto_decrement= 0xffffffffffffffff;
if (thd->variables.vers_ddl_survival)
{
thd->variables.time_zone->gmt_sec_to_TIME(&now, thd->query_start());
now.second_part= thd->query_start_sec_part();
thd->time_zone_used= 1;
query_start= thd->query_start_TIME();
from_sys_trx_end= from->vers_end_field();
to_sys_trx_start= to->vers_start_field();
}
@ -9975,7 +9962,7 @@ copy_data_between_tables(THD *thd, TABLE *from, TABLE *to,
{
to_sys_trx_start->set_notnull(to_sys_trx_start->null_offset());
// TODO: write directly to record bypassing the same checks on every call
to_sys_trx_start->store_time(&now);
to_sys_trx_start->store_time(&query_start);
static const timeval max_tv= {0x7fffffff, 0};
static const uint dec= 6;
@ -9993,9 +9980,9 @@ copy_data_between_tables(THD *thd, TABLE *from, TABLE *to,
continue; // Do not copy history rows.
store_record(from, record[1]);
from->vers_end_field()->store_time(&now);
from->vers_end_field()->store_time(&query_start);
from->file->ha_update_row(from->record[1], from->record[0]);
to_sys_trx_start->store_time(&now);
to_sys_trx_start->store_time(&query_start);
}
prev_insert_id= to->file->next_insert_id;