The arrangement of elements in the document is mainly arranged according to the cascading relationship;
forms a cascading context:
1), root element
2), the attribute value of posi
Tag: arrangement
HeartBeat Haresources configuration
1. Introduction of Heartbeat:
The Heartbeat project is a component of the Linux-HA project and the most successful example of the current open source HA project. The full name of Linux-HA is
PostgreSQL arrangement by query optimization order
I encountered a small problem here.
SELECT DISTINCT ON (“reporting_processedamazonsnapshot”.”offer_id”) *
FROM “reporting_processedamazonsnapshot” INNER JOIN
“offers_boooffer”
ON (“report