RE: Sizing HEAP table using .MYD/MYI

2001-01-24 Thread mike thomas
Richard Thanks for the info! I have just one more question. To get the structure of the table I did a myisamchk and did a desc on the table. The output is shown below. From this is it possible to determine the amount of RAM I would need for a HEAP table? Thanks! MichaelT MyISAM file:

Re: Sizing HEAP table using .MYD/MYI

2001-01-24 Thread Jan Dvorak
Hi, If my calculations are correct, your table will grow quite a lot if you change from the MyISAM format to HEAP. The space to hold the data will be roughly 1.3GB (a double of what it's with MyISAM!) and the index will be another 1.3GB. Pretty huge, isn't it? I think the dynamic row format

Re: Sizing HEAP table using .MYD/MYI

2001-01-23 Thread Richard Ellerbrock
Hi all I have a large table (20 million records) that I want to load into RAM to improve selects. I understand (from previous posts) that I must create a HEAP table. Please correct me if I'm wrong on this. My question is - how much RAM do I need if the MYI and MYD files are as follows :- 214M