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| author | Helmut Grohne <helmut@subdivi.de> | 2016-06-12 07:52:28 +0200 |
|---|---|---|
| committer | Helmut Grohne <helmut@subdivi.de> | 2016-06-12 07:52:28 +0200 |
| commit | 90efeacbc079bb87d44f4ed4bca4d9069ed06eeb (patch) | |
| tree | e41c19f385fb74c3f9173d3e4f5ecddc874cfcbe /dedup | |
| parent | e123f857a74e2ec8742ceebddebd7d296dcaca3c (diff) | |
| download | debian-dedup-90efeacbc079bb87d44f4ed4bca4d9069ed06eeb.tar.gz | |
multiarchanalyze: speed up on sqlite3 3.8.7.1
Since all users of archdepcandidate run the results through "exists()"
or "group by", "union" vs "union all" does not make any difference to
the results.
On the performance side however, it avoids a b-tree merge getting the
maforeign_candidate query down from hours to seconds.
Diffstat (limited to 'dedup')
0 files changed, 0 insertions, 0 deletions