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Postgres: “ERROR: cached plan must not change result type”

...ng this error. My application opened a database connection and prepared a SELECT statement for execution. Meanwhile, another script was modifying the database table, changing the data type of one of the columns being returned in the above SELECT statement. I resolved this by restarting the applic...
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How to automatically generate N “distinct” colors?

I wrote the two methods below to automatically select N distinct colors. It works by defining a piecewise linear function on the RGB cube. The benefit of this is you can also get a progressive scale if that's what you want, but when N gets large the colors can start to look similar. I can also imagi...
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Razor comment syntax

... In visual studio, select some code/markup in your razor view and press Ctrl+K, Ctrl+C, and it'll comment the selection as described above. – MrBoJangles Feb 17 '11 at 18:12 ...
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How can I handle time zones in my webapp?

...ssume that timezone. Should the device switch timezones, add a dropdown to select which timezone the event is in, defaulting to the device's own timezone. Add an option to show/hide this timezone dropdown manually. Always store timestamps in UTC. ...
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How to use Sublime over SSH

...t as a Sublime Text Project. In the sidebar, right click on the folder and select Map Remote. Edit the sftp-config.json file Right click the folder in step 1 select download. Work locally. In the sftp-config, I usually set: "upload_on_save": true, "sync_down_on_open": true, This, in addition to...
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Get all inherited classes of an abstract class [duplicate]

...d This will search all assemblies: AppDomain.CurrentDomain.GetAssemblies().SelectMany(s => s.GetTypes()).Where(.... – Brain2000 Aug 24 '18 at 20:34 ...
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IntelliJ: How to auto-highlight variables like in Eclipse

... choose to do so. With your cursor on an occurence. Do Ctrl+Shift+F7 to select all other occurrences. Then Shift + F6 to rename all occurences simultaneously. share | improve this answer ...
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How do I show the schema of a table in a MySQL database?

...rpreted the first way. For anybody reading the question the other way try SELECT `table_schema` FROM `information_schema`.`tables` WHERE `table_name` = 'whatever'; share | improve this answer ...
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mysql check collation of a table

...ry INFORMATION_SCHEMA.TABLES and get the collation for a specific table: SELECT TABLE_SCHEMA , TABLE_NAME , TABLE_COLLATION FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 't_name'; that gives a much more readable output in contrast to SHOW TABLE STATUS that contains a lot of irreleva...
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MySQL: What's the difference between float and double?

...INSERT INTO `test` values (1.2,1.2,1.2,1.2); The table showing like this: SELECT * FROM `test`; +------+------+------+------+ | fla | flb | dba | dbb | +------+------+------+------+ | 1.2 | 1.2 | 1.20 | 1.20 | +------+------+------+------+ See the difference? We try to next example: SELECT ...