[fix](planner) fix now function param type error

[TangSiyang2001]

Proposed changes

work with #23092 to fix tables created both before 2.0 and after 2.0

Further comments

If this is a relatively large or complex change, kick off the discussion at dev@doris.apache.org by explaining why you chose the solution you did and what alternatives you considered, etc...

[TangSiyang2001]

run buildall

[TangSiyang2001]

run buildall

[hello-stephen]

(From new machine)TeamCity pipeline, clickbench performance test result:
the sum of best hot time: 47.89 seconds
stream load tsv: 544 seconds loaded 74807831229 Bytes, about 131 MB/s
stream load json: 24 seconds loaded 2358488459 Bytes, about 93 MB/s
stream load orc: 65 seconds loaded 1101869774 Bytes, about 16 MB/s
stream load parquet: 31 seconds loaded 861443392 Bytes, about 26 MB/s
insert into select: 29.2 seconds inserted 10000000 Rows, about 342K ops/s
storage size: 17162271383 Bytes

[hello-stephen]

(From new machine)TeamCity pipeline, clickbench performance test result:
the sum of best hot time: 47.37 seconds
stream load tsv: 540 seconds loaded 74807831229 Bytes, about 132 MB/s
stream load json: 21 seconds loaded 2358488459 Bytes, about 107 MB/s
stream load orc: 66 seconds loaded 1101869774 Bytes, about 15 MB/s
stream load parquet: 32 seconds loaded 861443392 Bytes, about 25 MB/s
insert into select: 29.7 seconds inserted 10000000 Rows, about 336K ops/s
storage size: 17162101015 Bytes

[dataroaring]

LGTM