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QL: More column information.

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This commit is contained in:
Mathias Vorreiter Pedersen
2023-02-23 19:11:09 +00:00
parent 229e291e1b
commit 9ee078d1f2
1 changed files with 11 additions and 10 deletions
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21
ql/ql/src/queries/performance/LargeJoinOrder.ql
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@@ -16,7 +16,7 @@ import KindPredicatesLog
float getBadness(ComputeSimple simple) {
exists(float maxTupleCount, float resultSize, float largestDependency, float denom |
resultSize = simple.getResultSize() and
extractInformation(simple, maxTupleCount, _, _, _, _) and
extractInformation(simple, maxTupleCount, _, _, _) and
largestDependency = max(simple.getDependencies().getADependency().getResultSize()) and
denom = resultSize.maximum(largestDependency) and
denom > 0 and // avoid division by zero (which would create a NaN result).
@@ -28,13 +28,11 @@ pragma[nomagic]
predicate hasPipelineRun(ComputeSimple simple, PipeLineRun run) { run = simple.getPipelineRun() }
predicate extractInformation(
ComputeSimple simple, float maxTupleCount, int pipelineIndex, Array tuples,
Array duplicationPercentages, Array ra
ComputeSimple simple, float maxTupleCount, Array tuples, Array duplicationPercentages, Array ra
) {
exists(PipeLineRun run |
hasPipelineRun(simple, run) and
maxTupleCount = max(run.getCount(_)) and
pragma[only_bind_out](tuples.getFloat(pipelineIndex)) = maxTupleCount and
tuples = run.getCounts() and
duplicationPercentages = run.getDuplicationPercentage() and
ra = simple.getRA()
@@ -42,10 +40,13 @@ predicate extractInformation(
}
from
ComputeSimple evt, float f, float maxTupleCount, int pipelineIndex, Array tuples,
Array duplicationPercentages, Array ra
ComputeSimple evt, float badness, float maxTupleCount, Array tuples, Array duplicationPercentages,
Array ra, int index
where
f = getBadness(evt) and
f > 1.5 and
extractInformation(evt, maxTupleCount, pipelineIndex, tuples, duplicationPercentages, ra)
select evt, f, pipelineIndex, tuples, duplicationPercentages, ra order by f desc
badness = getBadness(evt) and
badness > 1.5 and
extractInformation(evt, maxTupleCount, tuples, duplicationPercentages, ra)
select evt.getPredicateName() as predicate_name, badness, index,
tuples.getFloat(index) as tuple_count,
duplicationPercentages.getFloat(index) as duplication_percentage, ra.getString(index) order by
badness desc