[fix](be) Adapt nullable column unnesting to new interface

[linrrzqqq]

Related PR: conflict between #66242 and #66031

Problem Summary:

fix be compile:

In file included from ../src/exprs/function/ai/ai_functions.cpp:19:
In file included from ../src/exprs/function/ai/ai_classify.h:20:
../src/exprs/function/ai/ai_functions.h:312:66: error: too few arguments to function call, expected 2, have 0
312 | prompt_columns.emplace_back(argument.unnest_nullable().column);
| ~~~~~~~~~~~~~~~~~~~~~~~~ ^
../src/core/block/column_with_type_and_name.h:86:27: note: 'unnest_nullable' declared here
86 | ColumnWithTypeAndName unnest_nullable(const NullableColumnInfo& info,
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
87 | bool replace_null_data_to_default) const;
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../src/exprs/function/ai/ai_functions.cpp:29:
../src/exprs/function/ai/embed.h:74:56: error: too few arguments to function call, expected 2, have 0
74 | ColumnPtr input_column = input.unnest_nullable().column;
| ~~~~~~~~~~~~~~~~~~~~~ ^
../src/core/block/column_with_type_and_name.h:86:27: note: 'unnest_nullable' declared here
86 | ColumnWithTypeAndName unnest_nullable(const NullableColumnInfo& info,
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
87 | bool replace_null_data_to_default) const;
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 errors generated.

[hello-stephen]

Thank you for your contribution to Apache Doris.
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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?

[linrrzqqq]

run buildall

[shuke987]

skip buildall

[github-actions]

PR approved by at least one committer and no changes requested.

[github-actions]

PR approved by anyone and no changes requested.

[hello-stephen]

TPC-H: Total hot run time: 29137 ms

machine: 'aliyun_ecs.c7a.8xlarge_32C64G'
scripts: https://github.com/apache/doris/tree/master/tools/tpch-tools
Tpch sf100 test result on commit 2f62924f77e4ce2faded7cfaa638fa47706692fd, data reload: false
------ Round 1 ----------------------------------
============================================
q1	17724	3975	3958	3958
q2	2040	324	205	205
q3	10242	1373	837	837
q4	4719	481	340	340
q5	7901	837	542	542
q6	255	171	134	134
q7	775	815	606	606
q8	10320	1615	1605	1605
q9	5659	4127	4053	4053
q10	6763	1635	1357	1357
q11	520	349	327	327
q12	726	583	461	461
q13	18118	3315	2780	2780
q14	268	256	240	240
q15	q16	743	734	658	658
q17	1011	969	1090	969
q18	6634	5590	5581	5581
q19	1514	1308	1157	1157
q20	813	689	604	604
q21	5975	2543	2415	2415
q22	425	356	308	308
Total cold run time: 103145 ms
Total hot run time: 29137 ms
----- Round 2, with runtime_filter_mode=off -----
============================================
q1	4321	4206	4201	4201
q2	276	323	214	214
q3	4578	4946	4337	4337
q4	2168	2242	1407	1407
q5	4220	4139	4109	4109
q6	232	169	126	126
q7	1686	1609	1785	1609
q8	2434	2098	2064	2064
q9	7328	7243	7088	7088
q10	4306	4248	3825	3825
q11	545	407	380	380
q12	732	765	503	503
q13	3227	3471	2938	2938
q14	289	313	277	277
q15	q16	682	724	648	648
q17	1379	1297	1281	1281
q18	12156	11028	11857	11028
q19	1196	1165	1147	1147
q20	2243	2277	1981	1981
q21	5643	4775	4526	4526
q22	500	456	433	433
Total cold run time: 60141 ms
Total hot run time: 54122 ms

[hello-stephen]

TPC-DS: Total hot run time: 166363 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 2f62924f77e4ce2faded7cfaa638fa47706692fd, data reload: false
query5	4309	600	456	456
query6	459	218	203	203
query7	4838	572	330	330
query8	317	157	147	147
query9	8777	3977	3978	3977
query10	468	348	304	304
query11	5719	2140	2030	2030
query12	155	99	96	96
query13	1243	572	430	430
query14	6182	4267	3983	3983
query14_1	3810	3760	3777	3760
query15	202	191	169	169
query16	985	456	462	456
query17	889	678	533	533
query18	2443	447	328	328
query19	203	186	139	139
query20	105	100	98	98
query21	221	153	131	131
query22	13015	12974	12828	12828
query23	15642	14989	14667	14667
query23_1	14770	14627	14679	14627
query24	7789	1658	1194	1194
query24_1	1251	1225	1220	1220
query25	560	449	385	385
query26	1317	369	218	218
query27	2628	651	358	358
query28	4551	2026	2009	2009
query29	1074	636	485	485
query30	352	259	223	223
query31	1179	1123	1090	1090
query32	122	69	62	62
query33	526	313	256	256
query34	1182	1166	646	646
query35	734	767	642	642
query36	790	788	722	722
query37	156	111	92	92
query38	1833	1784	1678	1678
query39	834	828	818	818
query39_1	776	783	784	783
query40	263	172	152	152
query41	71	71	69	69
query42	99	96	90	90
query43	322	322	281	281
query44	1428	769	768	768
query45	191	173	173	173
query46	1058	1126	686	686
query47	1567	1587	1435	1435
query48	407	413	288	288
query49	596	413	296	296
query50	1056	438	335	335
query51	10757	10708	10674	10674
query52	90	89	77	77
query53	261	286	210	210
query54	312	259	230	230
query55	77	73	69	69
query56	311	320	306	306
query57	1056	1010	921	921
query58	307	257	260	257
query59	1529	1576	1391	1391
query60	321	280	270	270
query61	194	148	152	148
query62	408	318	266	266
query63	237	199	195	195
query64	2855	1024	833	833
query65	3908	3820	3808	3808
query66	1856	475	359	359
query67	28115	28065	27948	27948
query68	3234	1634	1037	1037
query69	405	308	264	264
query70	850	770	791	770
query71	354	336	317	317
query72	2985	2636	2242	2242
query73	866	759	438	438
query74	4607	4485	4296	4296
query75	2380	2331	1997	1997
query76	2333	1147	750	750
query77	351	371	267	267
query78	11121	11059	10529	10529
query79	1353	1161	734	734
query80	1248	581	471	471
query81	520	332	286	286
query82	627	174	136	136
query83	373	316	295	295
query84	315	166	128	128
query85	965	600	524	524
query86	411	225	226	225
query87	1958	1956	1838	1838
query88	3710	2791	2764	2764
query89	390	322	284	284
query90	1951	204	197	197
query91	202	187	164	164
query92	63	61	54	54
query93	1625	1445	951	951
query94	710	367	304	304
query95	786	605	472	472
query96	1087	800	352	352
query97	2456	2460	2346	2346
query98	195	190	194	190
query99	750	735	626	626
Total cold run time: 253182 ms
Total hot run time: 166363 ms

[hello-stephen]

ClickBench: Total hot run time: 23.93 s

machine: 'aliyun_ecs.c7a.8xlarge_32C64G'
scripts: https://github.com/apache/doris/tree/master/tools/clickbench-tools
ClickBench test result on commit 2f62924f77e4ce2faded7cfaa638fa47706692fd, data reload: false
query1	0.01	0.00	0.01
query2	0.09	0.05	0.05
query3	0.25	0.14	0.14
query4	1.61	0.14	0.14
query5	0.24	0.21	0.22
query6	1.16	0.80	0.79
query7	0.04	0.01	0.01
query8	0.06	0.03	0.03
query9	0.39	0.32	0.31
query10	0.59	0.59	0.56
query11	0.19	0.14	0.14
query12	0.17	0.14	0.14
query13	0.46	0.46	0.47
query14	1.00	0.98	0.99
query15	0.60	0.58	0.58
query16	0.30	0.34	0.32
query17	1.09	1.07	1.10
query18	0.21	0.20	0.20
query19	2.06	1.94	1.98
query20	0.02	0.01	0.01
query21	15.47	0.21	0.14
query22	4.83	0.06	0.06
query23	16.13	0.30	0.12
query24	2.94	0.45	0.31
query25	0.12	0.06	0.04
query26	0.73	0.22	0.15
query27	0.04	0.04	0.03
query28	3.49	0.83	0.35
query29	12.51	4.04	3.22
query30	0.28	0.16	0.15
query31	2.76	0.55	0.32
query32	3.23	0.58	0.49
query33	3.22	3.18	3.21
query34	15.74	3.97	3.27
query35	3.25	3.24	3.27
query36	0.55	0.44	0.42
query37	0.09	0.07	0.06
query38	0.05	0.04	0.03
query39	0.04	0.03	0.02
query40	0.18	0.16	0.15
query41	0.09	0.03	0.03
query42	0.04	0.03	0.03
query43	0.05	0.04	0.04
Total cold run time: 96.37 s
Total hot run time: 23.93 s