src/backend/optimizer/util/pathnode.c · 5c74ce23db52ec862b9f35cfa5f6b327820dda47 · Abuhujair Javed / Postgres FD Implementation · GitLab

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Improve UniquePath logic to detect the case where the input is already · 5c74ce23
Tom Lane authored Jan 05, 2004
```
known unique (eg, it is a SELECT DISTINCT ... subquery), and not do a
redundant unique-ification step.
```
5c74ce23

pathnode.c 23.8 KB