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view tests/fixtures/copybeforeclose.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 | 1b9d004a8c0a |
| children |
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SVN-fs-dump-format-version: 2 UUID: 1e1f7d3f-4361-4205-84f8-c0d471d161d2 Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2009-06-11T15:51:46.768965Z PROPS-END Revision-number: 1 Prop-content-length: 100 Content-length: 100 K 7 svn:log V 3 btt K 10 svn:author V 3 djc K 8 svn:date V 27 2009-06-11T15:51:47.134555Z PROPS-END Node-path: branches Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: tags Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: trunk 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 9 Add file. K 10 svn:author V 3 djc K 8 svn:date V 27 2009-06-11T15:51:48.129578Z PROPS-END Node-path: trunk/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: 104 Content-length: 104 K 7 svn:log V 7 Branch. K 10 svn:author V 3 djc K 8 svn:date V 27 2009-06-11T15:51:51.120532Z PROPS-END Node-path: branches/test Node-kind: dir Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: trunk Revision-number: 4 Prop-content-length: 113 Content-length: 113 K 7 svn:log V 15 Move on branch. K 10 svn:author V 3 djc K 8 svn:date V 27 2009-06-11T15:51:54.124503Z PROPS-END Node-path: branches/test/b Node-kind: file Node-action: add Node-copyfrom-rev: 3 Node-copyfrom-path: branches/test/a Text-copy-source-md5: 60b725f10c9c85c70d97880dfe8191b3 Node-path: branches/test/a Node-action: delete Revision-number: 5 Prop-content-length: 111 Content-length: 111 K 7 svn:log V 13 Close branch. K 10 svn:author V 3 djc K 8 svn:date V 27 2009-06-11T15:51:57.130547Z PROPS-END Node-path: branches/test Node-action: delete