mirror of
https://github.com/postgres/postgres.git
synced 2026-05-26 03:11:44 -04:00
In particular, there was a mathematical tie between the two possible nestloop-with-materialized-inner-scan plans for a join (ie, we computed the same cost with either input on the inside), resulting in a roundoff error driven choice, if the relations were both small enough to fit in sort_mem. Add a small cost factor to ensure we prefer materializing the smaller input. This changes several regression test plans, but with any luck we will now have more stability across platforms. |
||
|---|---|---|
| .. | ||
| bench | ||
| examples | ||
| locale | ||
| mb | ||
| performance | ||
| regress | ||
| Makefile | ||