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7c079d7417
Previously, only literals were allowed. This change allows general expressions, including functions calls, which are evaluated at the time the DDL command is executed. Besides offering some more functionality, it simplifies the parser structures and removes some inconsistencies in how the literals were handled. Author: Kyotaro Horiguchi, Tom Lane, Amit Langote Reviewed-by: Peter Eisentraut <peter.eisentraut@2ndquadrant.com> Discussion: https://www.postgresql.org/message-id/flat/9f88b5e0-6da2-5227-20d0-0d7012beaa1c@lab.ntt.co.jp/