Re: [firebird-support] Benefit from Sequential Insert of High/Low PK

2013-01-27 Thread Ann Harrison
On Fri, Jan 25, 2013 at 4:21 PM, Jeff jeffpl...@yahoo.com wrote: (Using FB 1.5) OK, that's scary right there. Firebird 1.5 is ten years old. Newer versions use approximately the same index structures but have lots of bugs fixed, including several important ones in the index code. Do

Re: [firebird-support] Benefit from Sequential Insert of High/Low PK

2013-01-26 Thread Thomas Steinmaurer
(Using FB 1.5) Do inserts in FB benefit from ordered or sequential PK? Please allow me to clarify. I intend to use High/Low for table PKs. With this approach, it is very possible that PKs will not be in sequential order as they are inserted into the db. Will this be an issue in FB? I

Re: [firebird-support] Benefit from Sequential Insert of High/Low PK

2013-01-26 Thread Mark Rotteveel
On 26-1-2013 14:42, Thomas Steinmaurer wrote: (Using FB 1.5) Do inserts in FB benefit from ordered or sequential PK? Please allow me to clarify. I intend to use High/Low for table PKs. With this approach, it is very possible that PKs will not be in sequential order as they are inserted

Re: [firebird-support] Benefit from Sequential Insert of High/Low PK

2013-01-26 Thread Thomas Steinmaurer
On 26-1-2013 14:42, Thomas Steinmaurer wrote: (Using FB 1.5) Do inserts in FB benefit from ordered or sequential PK? Please allow me to clarify. I intend to use High/Low for table PKs. With this approach, it is very possible that PKs will not be in sequential order as they are inserted

Re: [firebird-support] Benefit from Sequential Insert of High/Low PK

2013-01-26 Thread Nando Dessena
Thomas, I once run a test with insertion performance in Firebird 2.5 with a) sequential PK values coming from a generator and b) via the built-in function giving me a UUID. reversed UUIDs, by putting the fixed part at the front, should perform better in this regard than plai UUID. I don't

Re: [firebird-support] Benefit from Sequential Insert of High/Low PK

2013-01-26 Thread Thomas Steinmaurer
I once run a test with insertion performance in Firebird 2.5 with a) sequential PK values coming from a generator and b) via the built-in function giving me a UUID. reversed UUIDs, by putting the fixed part at the front, should perform better in this regard than plai UUID. I don't know if

[firebird-support] Benefit from Sequential Insert of High/Low PK

2013-01-25 Thread Jeff
Hi all, (Using FB 1.5) Do inserts in FB benefit from ordered or sequential PK? Please allow me to clarify. I intend to use High/Low for table PKs. With this approach, it is very possible that PKs will not be in sequential order as they are inserted into the db. Will this be an issue in FB? I

Re: [firebird-support] Benefit from Sequential Insert of High/Low PK

2013-01-25 Thread Helen Borrie
At 10:21 a.m. 26/01/2013, Jeff wrote: Hi all, (Using FB 1.5) Do inserts in FB benefit from ordered or sequential PK? No. Please allow me to clarify. I intend to use High/Low for table PKs. I don't know what that might be. With this approach, it is very possible that PKs will not be in

Re: [firebird-support] Benefit from Sequential Insert of High/Low PK

2013-01-25 Thread Lester Caine
Jeff wrote: I based this question on this article: http://www.codeproject.com/Articles/388157/GUIDs-as-fast-primary-keys-under-multiple-database I'd expand on Helen's comment ... The article is not particularly clear on what problem is trying to be solved? All it is doing is adding a