Hello hackers, I saw a recent submission: Teach planner how to estimate rows for timestamp generate_series. I provide a patch for the numeric type here, and a simple test is as follows:
postgres=# explain SELECT * FROM generate_series(-25.0, -1.0, 2.0); QUERY PLAN ---------------------------------------------------------------------- Function Scan on generate_series (cost=0.00..0.13 rows=13 width=32) (1 row) postgres=# explain SELECT * FROM generate_series(-25.0, -1.0); QUERY PLAN ---------------------------------------------------------------------- Function Scan on generate_series (cost=0.00..0.25 rows=25 width=32) (1 row) postgres=# I really want to know your thoughts, please give me feedback. Thank you.
0001-Added-prosupport-functions-for-estimating-numeric-ge.patch
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