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Speed up base info query

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This commit is contained in:
Sandro Santilli 2015-05-05 13:40:38 +02:00
parent 347ccfebbb
commit 3477d85d1c
1 changed files with 10 additions and 5 deletions
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15
tools/benchmark.pl
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@ -247,15 +247,20 @@ EOF
}
print " Dims: " . join(',',@dims_interp) . "\n";
# TODO: this query is too expensive, add a switch to skip it ?
$info = query(<<"EOF"
select count(*), -- 0
min(pc_numpoints(\"${col}\")), -- 1
max(pc_numpoints(\"${col}\")), -- 2
1, --min(pc_numpoints(\"${col}\")), -- 1
2, --max(pc_numpoints(\"${col}\")), -- 2
avg(pc_numpoints(\"${col}\")), -- 3
sum(pc_numpoints(\"${col}\")), -- 4
4, --sum(pc_numpoints(\"${col}\")), -- 4
avg(pc_memsize(\"${col}\")), -- 5
array_to_string(array_agg(distinct pc_summary(\"${col}\")::json->>'compr'), ','),
array_to_string(array_agg(distinct
CASE WHEN PC_Compression(\"${col}\") = 0 THEN 'NONE'
WHEN PC_Compression(\"${col}\") = 1 THEN 'GHT'
WHEN PC_Compression(\"${col}\") = 2 THEN 'DIMENSIONAL'
ELSE 'UNKNOWN'
END
), ','),
pg_size_pretty(sum(pg_column_size(\"${col}\"))) -- 7
from \"${tn}\"
EOF