branch-3.0: [fix](show)show tables should be case insensitive when lowerCaseTableNames is 1 or 2. #46030

[github-actions]

Cherry-picked from #46030

[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: 40918 ms

machine: 'aliyun_ecs.c7a.8xlarge_32C64G'
scripts: https://github.com/apache/doris/tree/master/tools/tpch-tools
Tpch sf100 test result on commit 5c0e02951ce6404173a55ffb46537c78b7fef669, data reload: false

------ Round 1 ----------------------------------
q1	17723	7455	7346	7346
q2	2674	166	156	156
q3	11660	1129	1215	1129
q4	10447	773	746	746
q5	7836	2890	2788	2788
q6	234	150	167	150
q7	988	651	627	627
q8	9670	1967	1986	1967
q9	6597	6445	6362	6362
q10	6966	2283	2288	2283
q11	458	262	264	262
q12	397	213	213	213
q13	17771	2973	2997	2973
q14	239	207	215	207
q15	555	531	531	531
q16	655	615	600	600
q17	960	580	518	518
q18	7200	6574	6713	6574
q19	1376	1067	1072	1067
q20	473	201	199	199
q21	4074	3227	3297	3227
q22	1144	994	993	993
Total cold run time: 110097 ms
Total hot run time: 40918 ms

----- Round 2, with runtime_filter_mode=off -----
q1	7260	7198	7184	7184
q2	332	237	230	230
q3	3127	2968	2931	2931
q4	2031	1804	1796	1796
q5	5679	5651	5634	5634
q6	218	141	137	137
q7	2227	1884	1825	1825
q8	3329	3471	3433	3433
q9	8908	8850	8830	8830
q10	3596	3579	3545	3545
q11	602	536	501	501
q12	826	610	603	603
q13	7571	3172	3012	3012
q14	280	254	260	254
q15	553	513	522	513
q16	708	658	653	653
q17	1781	1568	1559	1559
q18	7801	7536	7322	7322
q19	1641	1464	1490	1464
q20	2019	1799	1775	1775
q21	5304	5081	5283	5081
q22	1104	1008	1001	1001
Total cold run time: 66897 ms
Total hot run time: 59283 ms

[doris-robot]

TPC-DS: Total hot run time: 191742 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 5c0e02951ce6404173a55ffb46537c78b7fef669, data reload: false

query1	1002	366	357	357
query2	6505	2143	2056	2056
query3	6711	216	220	216
query4	33805	23345	23383	23345
query5	4382	454	457	454
query6	282	176	182	176
query7	4620	318	320	318
query8	288	222	226	222
query9	9282	2713	2697	2697
query10	483	257	262	257
query11	18034	15279	15081	15081
query12	147	99	101	99
query13	1638	436	416	416
query14	8939	7371	7366	7366
query15	253	173	175	173
query16	8125	488	492	488
query17	1647	574	562	562
query18	2161	310	318	310
query19	339	154	152	152
query20	113	108	108	108
query21	61	45	48	45
query22	4489	4416	4338	4338
query23	34924	34627	33928	33928
query24	11753	2788	2891	2788
query25	702	409	416	409
query26	1835	170	169	169
query27	2860	304	313	304
query28	8114	2492	2442	2442
query29	1060	439	431	431
query30	336	171	162	162
query31	1009	823	830	823
query32	98	56	59	56
query33	790	291	293	291
query34	984	496	499	496
query35	877	710	730	710
query36	1127	937	926	926
query37	199	77	72	72
query38	4089	3877	3929	3877
query39	1488	1427	1419	1419
query40	226	82	80	80
query41	52	48	48	48
query42	109	95	95	95
query43	534	508	490	490
query44	1214	817	808	808
query45	184	168	170	168
query46	1128	703	728	703
query47	1924	1827	1831	1827
query48	465	365	376	365
query49	1267	381	389	381
query50	813	412	399	399
query51	7253	7121	7214	7121
query52	99	87	88	87
query53	255	187	180	180
query54	1383	453	458	453
query55	78	76	76	76
query56	254	247	242	242
query57	1238	1138	1088	1088
query58	225	202	206	202
query59	3400	3119	2887	2887
query60	286	254	257	254
query61	114	112	111	111
query62	871	667	676	667
query63	221	185	187	185
query64	5344	660	624	624
query65	3466	3197	3208	3197
query66	1421	312	313	312
query67	16046	15630	15568	15568
query68	4021	572	566	566
query69	411	264	261	261
query70	1099	1141	1132	1132
query71	322	261	256	256
query72	6289	4054	3992	3992
query73	759	348	344	344
query74	9979	8994	9083	8994
query75	3372	2636	2586	2586
query76	2687	1067	1066	1066
query77	388	289	281	281
query78	10386	9654	9597	9597
query79	1096	596	589	589
query80	783	447	431	431
query81	507	238	237	237
query82	1126	119	118	118
query83	241	143	146	143
query84	234	84	76	76
query85	1083	308	302	302
query86	322	298	303	298
query87	4642	4377	4226	4226
query88	3724	2382	2356	2356
query89	393	287	294	287
query90	2036	184	177	177
query91	181	147	168	147
query92	63	47	48	47
query93	1066	540	541	540
query94	786	306	305	305
query95	355	254	253	253
query96	614	278	279	278
query97	3291	3184	3202	3184
query98	212	201	197	197
query99	1524	1330	1319	1319
Total cold run time: 299413 ms
Total hot run time: 191742 ms

[doris-robot]

ClickBench: Total hot run time: 32.87 s

machine: 'aliyun_ecs.c7a.8xlarge_32C64G'
scripts: https://github.com/apache/doris/tree/master/tools/clickbench-tools
ClickBench test result on commit 5c0e02951ce6404173a55ffb46537c78b7fef669, data reload: false

query1	0.03	0.03	0.04
query2	0.07	0.03	0.03
query3	0.23	0.06	0.06
query4	1.62	0.10	0.10
query5	0.52	0.48	0.50
query6	1.13	0.74	0.71
query7	0.02	0.02	0.02
query8	0.04	0.03	0.04
query9	0.58	0.51	0.51
query10	0.56	0.56	0.56
query11	0.16	0.11	0.11
query12	0.14	0.11	0.12
query13	0.60	0.59	0.60
query14	3.07	2.94	3.03
query15	0.90	0.84	0.83
query16	0.38	0.36	0.39
query17	1.04	1.02	1.07
query18	0.23	0.22	0.21
query19	1.87	1.91	1.90
query20	0.02	0.01	0.02
query21	15.35	0.61	0.60
query22	2.62	2.70	1.71
query23	16.94	1.00	0.83
query24	2.82	1.60	1.08
query25	0.18	0.05	0.06
query26	0.58	0.14	0.14
query27	0.05	0.06	0.05
query28	10.51	1.09	1.08
query29	12.57	3.29	3.24
query30	0.25	0.06	0.07
query31	2.87	0.39	0.37
query32	3.26	0.46	0.46
query33	2.98	2.98	2.98
query34	17.19	4.46	4.43
query35	4.53	4.41	4.45
query36	0.68	0.48	0.47
query37	0.09	0.06	0.06
query38	0.05	0.04	0.03
query39	0.04	0.02	0.02
query40	0.16	0.12	0.12
query41	0.08	0.02	0.03
query42	0.03	0.02	0.02
query43	0.03	0.04	0.03
Total cold run time: 107.07 s
Total hot run time: 32.87 s