indexes & create table performance - response (1) by AB75150

Create table with data, as far as I understand is 3 part operation.
1) Create table
2) Select data from table B
3) insert data into table C
I dont think insert has a major impact on the definition of PI but select has. It more depends on the index that is defined on the source table that will impact the performance.
Coming onto sweness, yes skewness of the source table will have an impact as the skewed amps will get over worked while rest of the amps are underworked. Skewness can also lead to spooling out of the query.
Thanks!
AB75150