[MADLIB-934] MADlib LDA should allow users to supply names of input columns

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Fix Version/s: v1.9
• Component/s: Module: Parallel Latent Dirichlet Allocation
• Assignee: Rahul Iyer
• Reporter: Srivatsan Ramanujam
• Created: 04/Dec/15 22:23
• Updated: 08/Jan/16 19:57
• Resolved: 08/Jan/16 19:57

Description

When i attempt to create my own input table for LDA (one that has docid, wordid, count) which had 4 columns "docid", "wordid", "count" as well as a fourth column "word" (corresponding to the raw token). Of these, the type of the "count" column was bigint and not int. I am not sure what prompted the lda_train function to throw an error it said the input table did not contain docid, wordid and count columns, i did not check to see if it was because of the data type mismatch of the count column or if it was due to the additional column i had. Can you confirm which one is it?

If it is just the case that it is a bigint vs int issue, can we allow user to supply the names of the docid, wordid and count columns? (instead of hard-coding it?).