Greg Spiegelberg wrote:
The reason for my initial question was this.  We save changes only.
In other words, if system S has row T1 for day D1 and if on day D2
we have another row T1 (excluding our time column) we don't want
to save it.

It still isn't entirely clear to me what you are trying to do, but perhaps some sort of calculated checksum or hash would work to determine if the data has changed?


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