[development] Doubt on Index and Primary key
nan_wich at bellsouth.net
Fri Mar 18 02:00:16 UTC 2011
Well, you know uid is unique and commonly joined on already. How many John
Smith's do you think might submit a resume?
You can search on any column (or combination) whether or not it is indexed.
Indexing will make it quicker.
Injustice anywhere is a threat to justice everywhere. -- Dr. Martin L. King, Jr.
From: Austin Einter
In .install file, in hook_schema unction, we are mentioning index field and
primary key field.
I am wondering, how to choose which one should be index and which one should be
Does that affect the performance (in search, add, delete of records).
What I am thinking at this point of time, my database will contain job seekers
name, mail-id, contact number, skill set (as comma separated values) and resume.
For index purpose, I am thinking I will use '$user->uid' as Index and and 'name'
as primary key.
I am bit confused how it it is going to affect search/add/delete time (assuming
huge number of records in database) and also database management.
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