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Timestamp-based versioning for InnoDB [closes #209]

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* Removed integer_fields check
* Reworked Vers_parse_info::check_sys_fields()
* Misc renames
* versioned as vers_sys_type_t

* Removed versioned_by_sql(), versioned_by_engine()

versioned() works as before;
versioned(VERS_TIMESTAMP) is versioned_by_sql();
versioned(VERS_TRX_ID) is versioned_by_engine().

* create_tmp_table() fix
* Foreign constraints for timestamp-based
* Range auto-specifier fix
* SQL: 1-row partition rotation fix [fixes #260]
* Fix 'drop system versioning, algorithm=inplace'
This commit is contained in:
Aleksey Midenkov
2017-12-18 19:03:51 +03:00
committed by GitHub
parent d5e37621cf
commit b55a149194
73 changed files with 1178 additions and 836 deletions
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14
sql/sql_partition.cc
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@ -3163,11 +3163,14 @@ int vers_get_partition_id(partition_info *part_info,
DBUG_ASSERT(part_info);
Field *sys_trx_end= part_info->part_field_array[STAT_TRX_END];
DBUG_ASSERT(sys_trx_end);
DBUG_ASSERT(part_info->table);
TABLE *table= part_info->table;
DBUG_ASSERT(table);
Vers_part_info *vers_info= part_info->vers_info;
DBUG_ASSERT(vers_info && vers_info->initialized());
DBUG_ASSERT(sys_trx_end->table == part_info->table && part_info->table->versioned());
DBUG_ASSERT(part_info->table->vers_end_field() == sys_trx_end);
DBUG_ASSERT(vers_info);
DBUG_ASSERT(vers_info->initialized());
DBUG_ASSERT(sys_trx_end->table == table);
DBUG_ASSERT(table->versioned());
DBUG_ASSERT(table->vers_end_field() == sys_trx_end);
// new rows have NULL in sys_trx_end
if (sys_trx_end->is_max() || sys_trx_end->is_null())
@ -3177,7 +3180,6 @@ int vers_get_partition_id(partition_info *part_info,
else // row is historical
{
THD *thd= current_thd;
TABLE *table= part_info->table;
switch (thd->lex->sql_command)
{
@ -3198,7 +3200,7 @@ int vers_get_partition_id(partition_info *part_info,
mysql_mutex_unlock(&table->s->LOCK_rotation);
// transaction is not yet pushed to VTQ, so we use now-time
ulong sec_part;
my_time_t end_ts= sys_trx_end->table->versioned_by_engine() ?
my_time_t end_ts= sys_trx_end->table->versioned(VERS_TRX_ID) ?
my_time_t(0) : sys_trx_end->get_timestamp(&sec_part);
if (part_info->vers_limit_exceed() || part_info->vers_interval_exceed(end_ts))
{