zabbix=# select * from triggers where triggerid in ('74684495','74684496');
 triggerid | expression  |               description               | url | status | value | priority | lastchange | comments |         error         | templateid | type | state | flags
-----------+-------------+-----------------------------------------+-----+--------+-------+----------+------------+----------+-----------------------+------------+------+-------+-------
  74684495 | {143357}=3  | Slot_Fail {#SNMPVALUE} {#SNMPINDEX}     |     |      0 |     0 |        3 |          0 |          | Agent is unavailable. |   74655094 |    0 |     1 |     2
  74684496 | {143358}<>1 | Chassis _Fail {#SNMPVALUE} {#SNMPINDEX} |     |      0 |     0 |        3 |          0 |          | Agent is unavailable. |   74655109 |    0 |     1 |     2
(2 rows)

zabbix=# select * from trigger_discovery where parent_triggerid in ('74684495','74684496');
 triggerid | parent_triggerid
-----------+------------------
  74688221 |         74684495
  74688222 |         74684495
  74688223 |         74684495
  74688224 |         74684495
  74688058 |         74684496
(5 rows)

zabbix=# select * from triggers where triggerid in ('74688221','74688222','74688223','74688224','74688058');
 triggerid | expression  |        description         | url | status | value | priority | lastchange | comments |         error         | templateid | type | state | flags
-----------+-------------+----------------------------+-----+--------+-------+----------+------------+----------+-----------------------+------------+------+-------+-------
  74688058 | {151123}<>1 | Chassis _Fail H801MABC_0 0 |     |      0 |     0 |        3 | 1396565818 |          | Agent is unavailable. |            |    0 |     1 |     4
  74688221 | {151258}=3  | Slot_Fail H801CITD_0_0 0.0 |     |      0 |     0 |        3 | 1396566373 |          | Agent is unavailable. |            |    0 |     1 |     4
  74688222 | {151259}=3  | Slot_Fail VDM_0_2 0.2      |     |      0 |     0 |        3 | 1396566374 |          | Agent is unavailable. |            |    0 |     1 |     4
  74688223 | {151260}=3  | Slot_Fail VDM_0_3 0.3      |     |      0 |     0 |        3 | 1396566375 |          | Agent is unavailable. |            |    0 |     1 |     4
  74688224 | {151261}=3  | Slot_Fail H801SCUB_0_9 0.9 |     |      0 |     0 |        3 | 1396566376 |          | Agent is unavailable. |            |    0 |     1 |     4
(5 rows)