Insert to table with multi primary or without autoicrement primary

[ricco24]

Insert to table without autoincrement primary or with multiple column primary returns inserted record.

I cant find bug1342.postgre but i think this solve this bug too. Maybe i can delete this bug report test file.

fixes #41 #80

[Unlink]

Duplicate #102?
My PR also handles situations, where you have composite primary key and one part of it has autoincrement.
Try this:
https://github.com/nette/database/pull/102/files#diff-a5ef18703e35a05b08eb6089336ad773R21

[ricco24]

Yes, it is duplicate. I noticed your PR until after I made ​​my. So i let it here.
But this PR handles composite key with one autoincrement part too.

[dg]

So ... which way to go? ;-)

[Unlink]

@dg I'm not sure, i don't have completed API for IStructrure in my PR and i found there some issues.
so if @ricco24 adjusts them, i'll close my PR.

[ricco24]

@dg what with this? It is possible to merge or not? In current state nette database is unusable with php7.1, postgres 8.3+ and uuid as priamry key. Every insert fails ...

[dg]

May this cause a BC break? (Except that it adds new method to interface.) Or is it suitable for 2.4?

[dg]

What about CREATE TABLE ... ENGINE=InnoDB as used in other files?

[dg]

in_array() is relative slow operation, is possible this?

		if (is_array($primaryKey)) {
			$keys = array_flip($primaryKey);
			foreach ($this->getColumns($table) as $column) {
				if (isset($keys[$column['name']]) && $column['autoincrement']) {
					return $column['name'];
				}
			}
			return NULL;
		}

[dg]

What about move searching for keys from getPrimaryAutoincrementKey (and maybe from getPrimaryKeySequence too) to loadStructure and use cache?

[ricco24]

That seems to be a good idea. I can make another pr with optimized loadStructure() function when this will be merged.

[dg]

Ok, so I'll merge it. Thanks! 1f6133b