Top "Composite" questions

How to clear the canvas for redrawing

After experimenting with composite operations and drawing images on the canvas I'm now trying to remove images and compositing. How …

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How do composite indexes work?

I've created composite indexes (indices for you mathematical folk) on tables before with an assumption of how they worked. I …

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Check if a Postgres composite field is null/empty

With postgres composite types you can basically build a field with the structure being defined as another table. I have …

sql postgresql null composite

When should I use composite design pattern?

I don't understand when I should use composite design pattern. What kinds of benefits will I get from this design …

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SQL join with composite primary key

I have to join two tables. But in one table primary key is not there,composite primary key is there,…

sql join composite composite-primary-key

Difference between the Composite Pattern and Decorator Pattern?

What is the difference between the Composite Pattern and Decorator Pattern?

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EXECUTE...INTO...USING statement in PL/pgSQL can't execute into a record?

I'm attempting to write an area of a function in PL/pgSQL that loops through an hstore and sets a …

postgresql record plpgsql dynamic-sql composite

Relations on composite keys using sqlalchemy

I have this simple model of Author - Books and can't find a way to make firstName and lastName a …

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MySQL: how to index an "OR" clause

I'm executing the following query SELECT COUNT(*) FROM table WHERE field1='value' AND (field2 >= 1000 OR field3 >= 2000) There is …

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How to set value of composite variable field using dynamic SQL

Given this type: -- Just for testing purposes: CREATE TYPE testType as (name text) I can get the value of …

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