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view tests/fixtures/two_revs.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 | d78dbf88c13d |
| children |
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SVN-fs-dump-format-version: 2 UUID: df2126f7-00ab-4d49-b42c-7e981dde0bcf Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2008-10-07T22:49:12.059692Z PROPS-END Revision-number: 1 Prop-content-length: 111 Content-length: 111 K 7 svn:log V 11 Empty dirs. K 10 svn:author V 5 durin K 8 svn:date V 27 2008-10-07T22:49:41.118037Z 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: 108 Content-length: 108 K 7 svn:log V 9 Add alpha K 10 svn:author V 5 durin K 8 svn:date V 27 2008-10-07T23:23:02.991743Z PROPS-END Node-path: trunk/alpha Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 12 Text-content-md5: 3c72ebf8bbd7fa88b1fdcee5398b5a17 Content-length: 22 PROPS-END file: alpha Revision-number: 3 Prop-content-length: 107 Content-length: 107 K 7 svn:log V 8 Add beta K 10 svn:author V 5 durin K 8 svn:date V 27 2008-10-07T23:28:22.651398Z PROPS-END Node-path: trunk/beta Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 13 Text-content-md5: 981d1eb5fd0bbe05354c292105944863 Content-length: 23 PROPS-END Data of beta