Improve performance of `translate` expression

[andygrove]

What is the problem the feature request solves?

CometStringExpressionBenchmark shows poor performance:

OpenJDK 64-Bit Server VM 11.0.22+7-LTS on Mac OS X 14.6.1
Apple M3 Max
translate:                                Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------------------------------
Spark                                                12             45          40          0.1       11898.4       1.0X
Comet (Scan)                                         14             82          39          0.1       13301.5       0.9X
Comet (Scan + Exec)                                  96            159          38          0.0       93534.9       0.1X

Describe the potential solution

Review benchmark to make sure it is valid, then try and optimize.

Additional context

No response

[shuch3ng]

Similarly to #2975, I also couldn't reproduce the benchmark on the main branch

OpenJDK 64-Bit Server VM 17.0.17+10 on Mac OS X 26.2
Apple M2 Pro
translate:                                Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------------------------------
Spark                                             40808          41090         398          0.0       38917.7       1.0X
Comet (Scan)                                      41219          41246          39          0.0       39309.6       1.0X
Comet (Scan + Exec)                               22084          22227         202          0.0       21060.8       1.8X

The physical plan is as below

== Physical Plan ==
*(1) CometColumnarToRow
+- CometProject [translate(col, abc, xyz)#3474], [translate(col#3473, abc, xyz) AS translate(col, abc, xyz)#3474]
   +- CometScan [native_iceberg_compat] parquet spark_catalog.default.test[col#3473] Batched: true, DataFilters: [], Format: CometParquet, Location: InMemoryFileIndex(1 paths)

@coderfender could you please verify on your side? Thanks.