[MADLIB-1442] Do not try to drop output tables

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: v1.18.0
• Component/s: All Modules
• Assignee: Unassigned
• Reporter: Orhan Kislal
• Created: 09/Jul/20 21:10
• Updated: 06/Aug/20 18:32
• Resolved: 06/Aug/20 18:32

Description

It seems MADlib drops the output table before creating a new one in some modules. We should not do this, instead, the user should be warned of the issue.

In some cases, we first check if the output table exists and then try to drop the non-existent table anyway. We should remove these queries as well.

The list of modules that might have this issue:

Summary, assoc_rules, glm, pca_project, logistic regression