Running "\d tablename" from psql could take multiple seconds when running on a system with 100k+ tables. The reason for this was that a sequence scan on pg_class takes place, due to regex matching being used.
Regex matching is obviously unnecessary when we're looking for an exact match. This checks for this (common) case and starts using plain equality in that case.
v1-0001-psql-Greatly-speed-up-d-tablename-when-not-using-.patch
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