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Serious Serious
Reported By: Shane Sturgeon
Reported On: 7/30/2011
For: Version 2.05 Build 10
# 3490 Altering a Table with Computed Columns Can Cause Invalid Floating Point Operation

I have a table which has a boolean column that I want to DROP.

I use the command (both via the EDB Dialog and also in an editor) below and get the message "Invalid floating point operation".

I have created a copy of the table, and if I do it without data, I can DROP the column. If I create the table with data, I get the "Invalid floating point operation".

I have checked the other columns and none of them reference the column I want to drop. The original table had triggers on update, but none of those referenced the column, and the table copied didn't have the triggers.

ALTER TABLE "TimelogTEST"
DROP COLUMN "tlgBillable"



Comments Comments
The problem was caused by EDB not recompiling the computed columns properly during the alteration, causing the computed columns to use the wrong columns, and subsequently get the floating point error.


Resolution Resolution
Fixed Problem on 8/2/2011 in version 2.05 build 11


Products Affected Products Affected
ElevateDB Additional Software and Utilities
ElevateDB DAC Client-Server
ElevateDB DAC Client-Server with Source
ElevateDB DAC Standard
ElevateDB DAC Standard with Source
ElevateDB DAC Trial
ElevateDB LCL Standard with Source
ElevateDB PHP Standard
ElevateDB PHP Standard with Source
ElevateDB PHP Trial
ElevateDB VCL Client-Server
ElevateDB VCL Client-Server with Source
ElevateDB VCL Standard
ElevateDB VCL Standard with Source
ElevateDB VCL Trial

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