Merge pull request #149641 from cockroachdb/blathers/backport-release-25.2-149504

release-25.2: logictest: deflake partial_stats (#149641)

Co-Authored-By: Yahor Yuzefovich <[email protected]>

Author: yuzefovich

pkg/sql/opt/exec/execbuilder/testdata/partial_stats

@@ -1390,7 +1390,12 @@ INSERT INTO ka VALUES (10, 10)
 statement ok
 CREATE STATISTICS ka_partialstat ON a FROM ka USING EXTREMES
 
-query T retry
+# Now clear the stats cache so that the query below is guaranteed to pick up the
+# new stats (partial and merged).
+statement ok
+SELECT crdb_internal.clear_table_stats_cache();
+
+query T
 EXPLAIN SELECT * FROM ka WHERE a > 5
 ----
 distribution: local