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SQL: compare TRX_ID fields against timestamps [closes #231]

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This commit is contained in:
Aleksey Midenkov
2017-08-03 10:11:49 +03:00
parent d998da0306
commit c2c8808a16
26 changed files with 1107 additions and 256 deletions
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20
sql/sql_select.cc
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@ -877,24 +877,6 @@ int vers_setup_select(THD *thd, TABLE_LIST *tables, COND **where_expr,
DBUG_RETURN(-1);
}
}
else if (thd->variables.vers_innodb_algorithm_simple &&
vers_conditions.unit == UNIT_TIMESTAMP &&
vers_conditions.type != FOR_SYSTEM_TIME_UNSPECIFIED)
{
DBUG_ASSERT(table->table->s && table->table->s->db_plugin);
handlerton *hton= plugin_hton(table->table->s->db_plugin);
DBUG_ASSERT(hton);
row_start= newx Item_func_vtq_ts(
thd,
hton,
row_start,
VTQ_COMMIT_TS);
row_end= newx Item_func_vtq_ts(
thd,
hton,
row_end,
VTQ_COMMIT_TS);
}
Item *cond1= 0, *cond2= 0, *curr= 0;
// Temporary tables of can be created from INNODB tables and thus will
@ -907,7 +889,7 @@ int vers_setup_select(THD *thd, TABLE_LIST *tables, COND **where_expr,
switch (vers_conditions.type)
{
case FOR_SYSTEM_TIME_UNSPECIFIED:
if (table->table->versioned_by_sql() && !tmp_from_ib)
if (!tmp_from_ib)
{
MYSQL_TIME max_time;
thd->variables.time_zone->gmt_sec_to_TIME(&max_time, TIMESTAMP_MAX_VALUE);