PRs need to be checked and merged into branch-3.2

[jaogoy]

Following PRs are needed to be merged into branch-3.2.
Add the PR's id directly after the [ ], like [x] #12345 added by @jaogoy | xxxxx, if you've merged a PR and are modifying this issue content, or just add a comment, p

• 9cbe0c2 @fenganli [Enhancement] [cherry-pick] Make maximal varchar string length configurable in fe.conf and be.conf. (backport [Enhancement] Make maximal varchar string length configurable in fe.conf and be.conf. #38957) ([Enhancement] [cherry-pick] Make maximal varchar string length configurable in fe.conf and be.conf. (backport #38957) #41008)
• a194401 @fenganli / @Youngwb [Enhancement] [Cherrypick] Support wild cards in the file paths for external tables (backport [Enhancement] Support wild cards in the file paths for external tables. #40286) ([Enhancement] [Cherrypick] Support wild cards in the file paths for external tables (backport #40286)  #40844)
• 9ed79f1 @mingmxu / @kevincai [cherrypick][branch-3.1-cs][Feature][Issue 39849]add datadog java/cpp profiling lib ([Feature][Issue 39849]add datadog java/cpp profiling lib #40652) ([cherrypick][branch-3.1-cs][Feature][Issue 39849]add datadog java/cpp profiling lib (#40652) #40845)
• b90f0e2 @mingmxu / @kevincai [Feature][Issue 39849] update BE/FE start shell to support Datadog profile (backport [Feature][Issue 39849] update BE/FE start shell to support Datadog profile #39913) ([Feature][Issue 39849] update BE/FE start shell to support Datadog profile (backport #39913) #40154)
• dbe1a3b @andyziye [Tool] Filter cases in fe ut script (backport [Tool] Filter cases in fe ut script #38889) (backport [Tool] Filter cases in fe ut script (backport #38889) #38896) ([Tool] Filter cases in fe ut script (backport #38889) (backport #38896) #39033)
• 741d044 @fzhedu [BugFix] fix blocked scan and add more logs to check blocked drivers ([BugFix] fix blocked scan and add more logs to check blocked drivers #34614)
• 5c0be96 @stdpain [BugFix] Fix SenderQueue may leak closure ([BugFix] Fix SenderQueue may leak closure #34940)
• ccc38ed @luohaha [BugFix] fix lambda expr crash, backport ([BugFix] fix lambda expr crash, backport #33874)
• 27052b0 @luohaha [BugFix] clear state when lambda expr close ([BugFix] clear state when lambda expr close #33865)
• c85dd5f @fzhedu [Enhancement] refine log for abnormal queries ([Enhancement] refine log for abnormal queries #33837)
• 9ddd5b2 @stdpain [Feature] support dump slow driver stats ([Feature] support dump slow driver stats #33806)
• cf8f364 @rickif [BugFix] Append null to nullable numeric column ([BugFix] Append null to nullable numeric column #32767)
• f31aa1e @LiShuMing [BugFix] Distinguish materialized view refreshed partitions are empty or cannot be rewritten ([BugFix] Distinguish materialized view refreshed partitions are empty or cannot be rewritten #32513)
• [BugFix][Cherry-Pick] fix iceberg timestamp/timestamptz issue #33898 added by @jaogoy | 5895e48 [Enhancement] Support expression conversion of struct sub-column in Iceberg ([Enhancement] Support expression conversion of struct sub-column in Iceberg  #32598)
• 7c1f6ab @fzhedu fix const [BugFix] array_cum_sum two bugs: overflow and const col error #32393
• 75902b0 @nshangyiming [backport][branch-3.1][BugFix] Fix analyze mv privilege check ([BugFix][backport][branch-3.1] Fix analyze mv privilege check #32032)
• f00db23 @even986025158 / @Youngwb [BugFix] Set Group Statistics with MaterializedView ([BugFix] Set Group Statistics with MaterializedView #30530)
• a18bad9 @imay [Enhancement] Resolve hostname in FE ([Enhancement] Resolve hostname in FE #32056)
• b55373a @dujl / @kevincai [BugFix] in cgroupv2 k8s env, memory.max is in /sys/fs/cgroup/kubepods ([BugFix] in cgroupv2 k8s env, memory.max is in /sys/fs/cgroup/kubepods #31406)
• 81766fd @meegoo [BugFix] Fix transaction stream load LOAD_FINISHED metrics ([BugFix] Fix transaction stream load LOAD_FINISHED metrics #30063)
• 0c986b3 @satanson [Enhancement] Add session variables enable_table_prune_on_update (backport [Enhancement] Add session variables enable_table_prune_on_update #31151) ([Enhancement] Add session variables enable_table_prune_on_update (backport #31151) #31211)

[LiShuMing]

#32513 fixed by :https://github.com/StarRocks/starrocks/pull/34750/commits

[kevincai]

#40652 branch-3.2: #40809

[meegoo]

#30063 fixed by #41099

[kevincai]

#39913 branch-3.2: #41108

[rickif]

#32767 -> #32955

[kevincai]

#31406: branch-3.2: #41143

[Youngwb]

#40286 -> #40603
#30530 -> #41095