大约有 41,500 项符合查询结果（耗时：0.0301秒） [XML]
Postgres: “ERROR: cached plan must not change result type”
This exception is being thrown by the PostgreSQL 8.3.7 server to my application.
Does anyone know what this error means and what I can do about it?
...
What's the best visual merge tool for Git? [closed]
...'s the best tool for viewing and editing a merge in Git? I'd like to get a 3-way merge view, with "mine", "theirs" and "ancestor" in separate panels, and a fourth "output" panel.
...
How to grep a text file which contains some binary data?
...ile through cat -v, e.g
$ cat -v tmp/test.log | grep re
line1 re ^@^M
line3 re^M
which could be then further post-processed to remove the junk; this is most analogous to your query about using tr for the task.
share
...
How to stop Eclipse formatter from placing all enums on one line
...icy to Wrap all elements, every element on a new line (...) so it now says 3 of 3 in the parenthesis.
Uncheck Force split, even if line shorter than maximum line width (...) so it now says 3 of 3 in the parenthesis.
Select the Constants treenode
Check Force split, even if line shorter than maximum l...
When applying a patch is there any way to resolve conflicts?
...> changes.patch
Now when you are ready to apply the patches:
git am -3 < changes.patch
the -3 will do a three-way merge if there are conflicts. At this point you can do a git mergetool if you want to go to a gui or just manually merge the files using vim (the standard <<<<<...
prototype based vs. class based inheritance
...
3 Answers
3
Active
...
Remove querystring from URL
...
349
An easy way to get this is:
function getPathFromUrl(url) {
return url.split("?")[0];
}
Fo...
Converting from a string to boolean in Python?
...
30 Answers
30
Active
...
Insert, on duplicate update in PostgreSQL?
... the_table (id, column_1, column_2)
VALUES (1, 'A', 'X'), (2, 'B', 'Y'), (3, 'C', 'Z')
ON CONFLICT (id) DO UPDATE
SET column_1 = excluded.column_1,
column_2 = excluded.column_2;
Searching postgresql's email group archives for "upsert" leads to finding an example of doing what you poss...