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view tests/fixtures/copies.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 | 64d961130a07 |
| children |
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SVN-fs-dump-format-version: 2 UUID: 6f377846-a035-4244-a154-e87a9351a653 Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2012-10-15T19:02:56.936694Z PROPS-END Revision-number: 1 Prop-content-length: 105 Content-length: 105 K 10 svn:author V 7 pmezard K 8 svn:date V 27 2012-10-15T19:02:56.958201Z K 7 svn:log V 4 init PROPS-END Node-path: trunk Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: trunk/dir Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: trunk/dir/a Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: 60b725f10c9c85c70d97880dfe8191b3 Text-content-sha1: 3f786850e387550fdab836ed7e6dc881de23001b Content-length: 12 PROPS-END a Revision-number: 2 Prop-content-length: 123 Content-length: 123 K 10 svn:author V 7 pmezard K 8 svn:date V 27 2012-10-15T19:02:58.046478Z K 7 svn:log V 21 copy/edit trunk/dir/a PROPS-END Node-path: trunk/dir2 Node-kind: dir Node-action: add Node-copyfrom-rev: 1 Node-copyfrom-path: trunk/dir Node-path: trunk/dir2/a Node-kind: file Node-action: change Text-content-length: 4 Text-content-md5: dd8c6a395b5dd36c56d23275028f526c Text-content-sha1: 05dec960e24d918b8a73a1c53bcbbaac2ee5c2e0 Content-length: 4 a b Revision-number: 3 Prop-content-length: 119 Content-length: 119 K 10 svn:author V 7 pmezard K 8 svn:date V 27 2012-10-15T19:03:01.045897Z K 7 svn:log V 17 copy dir2 to dir3 PROPS-END Node-path: trunk/dir3 Node-kind: dir Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: trunk/dir2 Revision-number: 4 Prop-content-length: 117 Content-length: 117 K 10 svn:author V 7 pmezard K 8 svn:date V 27 2012-10-15T19:03:03.046654Z K 7 svn:log V 15 copy and remove PROPS-END Node-path: trunk/dir3/a Node-kind: file Node-action: delete Node-path: trunk/dir3/a Node-kind: file Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: trunk/dir2/a Text-copy-source-md5: dd8c6a395b5dd36c56d23275028f526c Text-copy-source-sha1: 05dec960e24d918b8a73a1c53bcbbaac2ee5c2e0