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view tests/fixtures/truncatedhistory.svndump @ 1475:ea4d6142c6d9
maps: do not ask sqlite for row count
"SELECT COUNT(1) FROM x" is not O(1) for sqlite and can be slow on large
tables. This patch changes the count to be backed by a file instead.
The change exposes a risk that the number may become inaccurate, if
__setitem__ is called with a same key multiple times. But we don't do that
during pull, and only use __len__ to calculate how many revisions pulled,
or test if the map is empty. So it would be fine.
| author | Jun Wu <quark@fb.com> |
|---|---|
| date | Thu, 23 Jun 2016 10:46:07 +0100 |
| parents | 3b60f223893a |
| children |
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SVN-fs-dump-format-version: 2 UUID: a632509c-657a-43d2-ae0b-85387476b20e Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2008-11-11T19:00:25.260082Z PROPS-END Revision-number: 1 Prop-content-length: 114 Content-length: 114 K 7 svn:log V 12 init project K 10 svn:author V 7 pmezard K 8 svn:date V 27 2008-11-11T19:00:25.322759Z PROPS-END Node-path: project1 Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: project2 Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Revision-number: 2 Prop-content-length: 106 Content-length: 106 K 7 svn:log V 5 add a K 10 svn:author V 7 pmezard K 8 svn:date V 27 2008-11-11T19:00:26.173269Z PROPS-END Node-path: project1/a Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: 60b725f10c9c85c70d97880dfe8191b3 Content-length: 12 PROPS-END a Revision-number: 3 Prop-content-length: 117 Content-length: 117 K 7 svn:log V 15 rename project1 K 10 svn:author V 7 pmezard K 8 svn:date V 27 2008-11-11T19:00:29.152593Z PROPS-END Node-path: project2/trunk Node-kind: dir Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: project1 Prop-content-length: 34 Content-length: 34 K 13 svn:mergeinfo V 0 PROPS-END Node-path: project1 Node-action: delete Revision-number: 4 Prop-content-length: 106 Content-length: 106 K 7 svn:log V 5 add b K 10 svn:author V 7 pmezard K 8 svn:date V 27 2008-11-11T19:00:30.178261Z PROPS-END Node-path: project2/trunk/b Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: 3b5d5c3712955042212316173ccf37be Content-length: 12 PROPS-END b