How teradata ensures about any duplicate rows inserted
How teradata ensures that there are no duplicate rows being inserted while this SET table?
Expert
Teradata will redirect the new inserted row according its PI to the target AMP (upon the basis of its row hash (#) value), and when this find same row hash value in which AMP (hash synonyms) then this start comparing the whole row, and determine if duplicate. When it’s a duplicate this silently skips this without throwing any error.
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