[fix](planner)the decimal type's precision and scale of set operation node is wrong

[starocean999]

pick from master #32787

Proposed changes

Issue Number: close #xxx

Further comments

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[doris-robot]

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[starocean999]

run buildall

[doris-robot]

TPC-H: Total hot run time: 49525 ms

machine: 'aliyun_ecs.c7a.8xlarge_32C64G'
scripts: https://github.com/apache/doris/tree/master/tools/tpch-tools
Tpch sf100 test result on commit a58c0516975acb20c487c2ea37e6dbf348c1f6e1, data reload: false

------ Round 1 ----------------------------------
q1	17679	4376	4295	4295
q2	2144	153	142	142
q3	10360	1986	1913	1913
q4	10446	1250	1325	1250
q5	8771	3876	3939	3876
q6	235	122	126	122
q7	2040	1605	1586	1586
q8	9278	2682	2688	2682
q9	10794	10357	10366	10357
q10	8590	3460	3495	3460
q11	416	246	243	243
q12	468	300	310	300
q13	18363	3955	4024	3955
q14	348	328	340	328
q15	503	448	454	448
q16	712	591	598	591
q17	1109	945	960	945
q18	7279	6821	6813	6813
q19	1694	1555	1464	1464
q20	503	296	312	296
q21	4396	4098	4079	4079
q22	488	380	408	380
Total cold run time: 116616 ms
Total hot run time: 49525 ms

----- Round 2, with runtime_filter_mode=off -----
q1	4315	4274	4267	4267
q2	317	219	221	219
q3	4130	4137	4133	4133
q4	2742	2754	2745	2745
q5	7199	7111	7186	7111
q6	235	124	117	117
q7	3242	2794	2836	2794
q8	4293	4405	4462	4405
q9	17045	17074	16878	16878
q10	4215	4237	4214	4214
q11	754	698	668	668
q12	1025	865	857	857
q13	7312	3760	3732	3732
q14	439	429	421	421
q15	493	460	455	455
q16	752	688	688	688
q17	3805	3934	3855	3855
q18	8823	8708	8718	8708
q19	1719	1708	1627	1627
q20	2352	2128	2117	2117
q21	8401	8451	8476	8451
q22	1055	980	951	951
Total cold run time: 84663 ms
Total hot run time: 79413 ms

[doris-robot]

TPC-DS: Total hot run time: 200809 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 a58c0516975acb20c487c2ea37e6dbf348c1f6e1, data reload: false

query1	922	386	403	386
query2	6513	2255	2201	2201
query3	6933	202	204	202
query4	19990	17856	17898	17856
query5	19741	6504	6539	6504
query6	291	210	221	210
query7	4170	294	297	294
query8	265	260	241	241
query9	3059	2651	2594	2594
query10	414	283	290	283
query11	11257	10664	10565	10565
query12	126	77	68	68
query13	5569	651	631	631
query14	17978	13663	13719	13663
query15	377	244	229	229
query16	6444	267	261	261
query17	1730	1449	867	867
query18	2316	406	395	395
query19	209	140	148	140
query20	72	75	75	75
query21	187	90	96	90
query22	5234	4949	4984	4949
query23	32485	31875	31895	31875
query24	6884	6467	6512	6467
query25	515	420	415	415
query26	537	162	152	152
query27	1874	289	285	285
query28	6063	2246	2214	2214
query29	2826	2569	2855	2569
query30	239	161	160	160
query31	938	741	714	714
query32	63	57	58	57
query33	391	258	238	238
query34	853	468	475	468
query35	1100	929	906	906
query36	1301	1084	1265	1084
query37	95	61	56	56
query38	3067	2928	2912	2912
query39	1381	1321	1298	1298
query40	200	92	94	92
query41	34	33	31	31
query42	93	84	91	84
query43	581	637	577	577
query44	1131	727	727	727
query45	240	222	225	222
query46	1257	989	944	944
query47	1999	1686	1729	1686
query48	993	681	667	667
query49	617	376	377	376
query50	860	622	587	587
query51	4680	4636	4652	4636
query52	87	79	81	79
query53	449	310	318	310
query54	2655	2465	2452	2452
query55	87	81	78	78
query56	233	221	182	182
query57	1223	1076	1122	1076
query58	209	191	195	191
query59	3495	3334	3191	3191
query60	199	189	198	189
query61	84	81	85	81
query62	819	527	483	483
query63	482	330	328	328
query64	2335	1476	1401	1401
query65	3663	3568	3597	3568
query66	804	373	359	359
query67	15451	14982	15275	14982
query68	10538	688	646	646
query69	566	341	322	322
query70	2005	1520	1348	1348
query71	410	302	304	302
query72	6428	3451	3419	3419
query73	736	324	322	322
query74	6330	5936	5929	5929
query75	5445	3623	3649	3623
query76	6820	1192	1221	1192
query77	1189	241	244	241
query78	12515	11714	11769	11714
query79	6245	618	627	618
query80	909	386	380	380
query81	459	233	230	230
query82	845	92	93	92
query83	164	130	129	129
query84	259	67	71	67
query85	840	281	276	276
query86	331	288	295	288
query87	3178	3042	3028	3028
query88	4294	2306	2321	2306
query89	403	294	298	294
query90	1923	209	204	204
query91	148	122	113	113
query92	56	51	48	48
query93	5720	575	578	575
query94	695	205	206	205
query95	1098	1060	1046	1046
query96	642	323	328	323
query97	6298	6350	6334	6334
query98	188	185	169	169
query99	2872	892	873	873
Total cold run time: 309918 ms
Total hot run time: 200809 ms

[doris-robot]

Load test result on machine: 'aliyun_ecs.c7a.8xlarge_32C64G'

Load test result on commit a58c0516975acb20c487c2ea37e6dbf348c1f6e1 with default session variables
Stream load json:         20 seconds loaded 2358488459 Bytes, about 112 MB/s
Stream load orc:          59 seconds loaded 1101869774 Bytes, about 17 MB/s
Stream load parquet:      32 seconds loaded 861443392 Bytes, about 25 MB/s
Insert into select:       23.0 seconds inserted 10000000 Rows, about 434K ops/s