Change in ovirt-engine[master]: core: Improve performance of GetStorageConnectionsByStorageT...

[emesika at redhat.com]

Eli Mesika has submitted this change and it was merged.

Change subject: core: Improve performance of GetStorageConnectionsByStorageTypeAndStatus
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core: Improve performance of GetStorageConnectionsByStorageTypeAndStatus

This Stored Procedure is slow because of distinct and UNION operators.
The refactored implementation uses sub-selects to improve performance.

This reduced execution time in the performance lab from 3s to <1s

Change-Id: I8048b87fa321086469c892c3650f7c5548cc13d8
Bug-Url: https://bugzilla.redhat.com/1186763
Signed-off-by: lzelkha at redhat.com <lzelkha at redhat.com>
---
M packaging/dbscripts/storages_san_sp.sql
1 file changed, 9 insertions(+), 13 deletions(-)

Approvals:
  Allon Mureinik: Looks good to me, but someone else must approve
  Maor Lipchuk: Looks good to me, approved
  Liran Zelkha: Verified
  Eldad Marciano: Looks good to me, but someone else must approve



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Gerrit-MessageType: merged
Gerrit-Change-Id: I8048b87fa321086469c892c3650f7c5548cc13d8
Gerrit-PatchSet: 4
Gerrit-Project: ovirt-engine
Gerrit-Branch: master
Gerrit-Owner: Liran Zelkha <lzelkha at redhat.com>
Gerrit-Reviewer: Allon Mureinik <amureini at redhat.com>
Gerrit-Reviewer: Daniel Erez <derez at redhat.com>
Gerrit-Reviewer: Eldad Marciano <emarcian at redhat.com>
Gerrit-Reviewer: Eli Mesika <emesika at redhat.com>
Gerrit-Reviewer: Liran Zelkha <lzelkha at redhat.com>
Gerrit-Reviewer: Maor Lipchuk <mlipchuk at redhat.com>
Gerrit-Reviewer: Oved Ourfali <oourfali at redhat.com>
Gerrit-Reviewer: automation at ovirt.org
Gerrit-Reviewer: oVirt Jenkins CI Server