branch-3.0: [fix](external)fix split and get the schema #45408

[github-actions]

Cherry-picked from #45408

[hello-stephen]

Thank you for your contribution to Apache Doris.
Don't know what should be done next? See How to process your PR.

Please clearly describe your PR:

1. What problem was fixed (it's best to include specific error reporting information). How it was fixed.
2. Which behaviors were modified. What was the previous behavior, what is it now, why was it modified, and what possible impacts might there be.
3. What features were added. Why was this function added?
4. Which code was refactored and why was this part of the code refactored?
5. Which functions were optimized and what is the difference before and after the optimization?

[hello-stephen]

run buildall

[doris-robot]

TPC-H: Total hot run time: 40682 ms

machine: 'aliyun_ecs.c7a.8xlarge_32C64G'
scripts: https://github.com/apache/doris/tree/master/tools/tpch-tools
Tpch sf100 test result on commit 7428ddfd4cdf9841fc8f0221a8175957989bac1d, data reload: false

------ Round 1 ----------------------------------
q1	17617	7483	7366	7366
q2	2070	165	155	155
q3	10572	1120	1206	1120
q4	10225	760	741	741
q5	7754	2824	2792	2792
q6	239	155	149	149
q7	969	612	608	608
q8	9370	1950	1986	1950
q9	6934	6445	6430	6430
q10	7013	2274	2302	2274
q11	470	263	265	263
q12	479	219	213	213
q13	17784	2969	2967	2967
q14	239	209	216	209
q15	555	511	522	511
q16	698	628	605	605
q17	983	535	475	475
q18	7317	6727	6611	6611
q19	1371	1054	1039	1039
q20	479	195	198	195
q21	3988	3036	3035	3035
q22	1060	979	974	974
Total cold run time: 108186 ms
Total hot run time: 40682 ms

----- Round 2, with runtime_filter_mode=off -----
q1	7298	7278	7259	7259
q2	334	239	230	230
q3	2866	2729	2704	2704
q4	1895	1697	1686	1686
q5	5364	5398	5399	5398
q6	217	143	141	141
q7	2067	1647	1654	1647
q8	3223	3375	3409	3375
q9	8574	8441	8467	8441
q10	3451	3428	3392	3392
q11	604	486	498	486
q12	777	567	545	545
q13	16885	2946	2967	2946
q14	291	256	270	256
q15	558	514	512	512
q16	697	661	654	654
q17	1796	1614	1573	1573
q18	7670	7550	7352	7352
q19	1656	1528	1594	1528
q20	1999	1811	1799	1799
q21	5228	4995	5137	4995
q22	1060	967	1001	967
Total cold run time: 74510 ms
Total hot run time: 57886 ms

[doris-robot]

TPC-DS: Total hot run time: 189353 ms

machine: 'aliyun_ecs.c7a.8xlarge_32C64G'
scripts: https://github.com/apache/doris/tree/master/tools/tpcds-tools
TPC-DS sf100 test result on commit 7428ddfd4cdf9841fc8f0221a8175957989bac1d, data reload: false

query1	964	382	366	366
query2	6512	2121	2132	2121
query3	6707	222	205	205
query4	33705	23400	23384	23384
query5	4282	442	438	438
query6	262	178	163	163
query7	4615	314	311	311
query8	294	230	232	230
query9	9527	2646	2637	2637
query10	443	257	268	257
query11	18053	15105	15183	15105
query12	151	99	96	96
query13	1611	421	416	416
query14	8907	7505	6680	6680
query15	234	171	176	171
query16	7927	467	478	467
query17	1611	579	548	548
query18	1817	312	316	312
query19	236	151	151	151
query20	112	106	111	106
query21	66	46	45	45
query22	4393	4368	4087	4087
query23	34449	33403	33555	33403
query24	11801	2864	2858	2858
query25	701	400	403	400
query26	1794	173	164	164
query27	2860	297	295	295
query28	8182	2483	2462	2462
query29	994	446	438	438
query30	334	158	163	158
query31	1032	811	803	803
query32	94	57	56	56
query33	770	286	286	286
query34	1008	490	518	490
query35	858	726	714	714
query36	1136	966	932	932
query37	274	74	75	74
query38	4000	3860	3845	3845
query39	1482	1425	1399	1399
query40	233	84	88	84
query41	54	50	49	49
query42	107	98	102	98
query43	529	509	491	491
query44	1261	791	790	790
query45	184	172	169	169
query46	1143	733	706	706
query47	1892	1787	1802	1787
query48	446	360	367	360
query49	1280	383	380	380
query50	798	393	397	393
query51	7312	7078	6987	6987
query52	102	89	102	89
query53	263	184	182	182
query54	1242	453	452	452
query55	73	75	80	75
query56	261	249	254	249
query57	1213	1085	1111	1085
query58	236	209	222	209
query59	3134	2971	2934	2934
query60	290	264	261	261
query61	133	129	131	129
query62	905	653	677	653
query63	217	210	182	182
query64	5258	658	626	626
query65	3283	3182	3161	3161
query66	1360	304	318	304
query67	15911	15288	15381	15288
query68	4948	567	560	560
query69	437	257	258	257
query70	1156	1099	1086	1086
query71	410	251	262	251
query72	6718	3869	3976	3869
query73	768	356	341	341
query74	10425	8864	8869	8864
query75	3415	2614	2595	2595
query76	2829	1053	1065	1053
query77	482	275	266	266
query78	10555	9667	9535	9535
query79	5373	590	599	590
query80	1896	435	430	430
query81	568	237	241	237
query82	970	123	124	123
query83	263	144	143	143
query84	292	80	77	77
query85	2277	300	310	300
query86	500	283	306	283
query87	4372	4243	4234	4234
query88	5335	2349	2358	2349
query89	433	298	293	293
query90	2156	184	187	184
query91	176	142	149	142
query92	63	50	47	47
query93	5318	564	547	547
query94	993	293	294	293
query95	345	247	248	247
query96	637	279	281	279
query97	3360	3140	3189	3140
query98	220	209	194	194
query99	1641	1325	1298	1298
Total cold run time: 312649 ms
Total hot run time: 189353 ms