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* Make the "latest succeeded" query (used by the "latest" channel)

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faster, from about 4.5s to 1.0s for the global "latest" channel.
  Note that the query is only fast if the "IndexBuildsOnJob" and
  "IndexBuildsOnJobAndIsCurrent" indices are dropped - if they exist,
  PostgreSQL will use those instead of the more efficient
  "IndexBuildsOnJobFinishedId" index.  Looks like a bug in the planner
  to me...
This commit is contained in:
Eelco Dolstra
2010-02-12 14:49:32 +00:00
parent 9cebf03a45
commit d8cc0bbb5d
3 changed files with 13 additions and 9 deletions
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5
src/sql/hydra.sql
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@ -434,12 +434,13 @@ create index IndexBuildStepsOnOutpath on BuildSteps(outpath);
create index IndexBuildStepsOnOutpathBuild on BuildSteps (outpath, build);
create index IndexBuildsOnFinished on Builds(finished);
create index IndexBuildsOnIsCurrent on Builds(isCurrent);
create index IndexBuildsOnJob on Builds(project, jobset, job);
create index IndexBuildsOnJobAndIsCurrent on Builds(project, jobset, job, isCurrent);
#create index IndexBuildsOnJob on Builds(project, jobset, job);
#create index IndexBuildsOnJobAndIsCurrent on Builds(project, jobset, job, isCurrent);
create index IndexBuildsOnJobAndSystem on Builds(project, jobset, job, system);
create index IndexBuildsOnJobset on Builds(project, jobset);
create index IndexBuildsOnProject on Builds(project);
create index IndexBuildsOnTimestamp on Builds(timestamp);
create index IndexBuildsOnJobFinishedId on builds(project, jobset, job, system, finished, id DESC);
create index IndexCachedGitInputsOnHash on CachedGitInputs(uri, branch, sha256hash);
create index IndexCachedGitInputsOnLastSeen on CachedGitInputs(uri, branch, lastSeen);
create index IndexCachedSubversionInputsOnUriRevision on CachedSubversionInputs(uri, revision);