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How do you find the row count for all your tables in Postgres

...t executes. You could automate this to run against every table in the database, but you probably don't need that level of accuracy or want to wait that long. The second approach notes that the statistics collector tracks roughly how many rows are "live" (not deleted or obsoleted by later updates) ...
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What are the rules for the “…” token in the context of variadic templates?

...Mixin1, .. public MixinN That is, mixture derives publicly from all the base classes. Hope that helps. share | improve this answer | follow | ...
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How to make DialogFragment width to Fill_Parent

... for me Create your custom style : <style name="DialogStyle" parent="Base.Theme.AppCompat.Dialog"> <item name="android:windowMinWidthMajor">97%</item> <item name="android:windowMinWidthMinor">97%</item> </style> You can also try use the right parent...
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How to fix the uninitialized constant Rake::DSL problem on Heroku?

...ake", "0.8.7" 2) Take out a hack that I had previously added to Rakefile based on Stack Overflow question Ruby on Rails and Rake problems: uninitialized constant Rake::DSL: So, my Rakefile is now back to being the standard Rakefile for my app: # Add your own tasks in files placed in lib/tasks...
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Good MapReduce examples [closed]

...when the complexity of the query increases. Map Reduce provides a cluster based implementation where data is processed in a distributed manner Here is a wikipedia article explaining what map-reduce is all about Another good example is Finding Friends via map reduce can be a powerful example to ...
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Copy rows from one Datatable to another DataTable?

...ly iterating through each, unlike all of the foreach loop, .ForEach method based answers. – David Burg Aug 30 '18 at 22:36 add a comment  |  ...
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How do I apply a perspective transform to a UIView?

...xample of this (with code) can be found here, where I've implemented touch-based rotation and scaling on a couple of CALayers, based on an example by Bill Dudney. The newest version of the program, at the very bottom of the page, implements this kind of perspective operation. The code should be re...
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Mock functions in Go

...ader(pageGetterFunc PageGetter) { // ... content := pageGetterFunc(BASE_URL) // ... } Main: func get_page(url string) string { /* ... */ } func main() { downloader(get_page) } Test: func mock_get_page(url string) string { // mock your 'get_page()' function here } func TestDow...
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Looking for a good world map generation algorithm [closed]

...ones, etc. Each point of land would then end up with an individual vector based off its location in relation to the plate boundaries, and should end up with a fairly realistic simulation to work from. – Steve Jul 30 '13 at 20:30 ...
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Find region from within an EC2 instance

...2_AVAIL_ZONE\" | sed 's/[a-z]$//'`" Hope this helps. EDIT: Improved sed based on comments share | improve this answer | follow | ...