Index TABLE_INT_IDX1 (0)
        Root page: 56636, depth: 3, leaf buckets: 7701, nodes: 11000000
        Average node length: 11.33, total dup: 66, max dup: 1
        Average key length: 8.35, compression ratio: 1.08
        Average prefix length: 3.65, average data length: 5.35
        Clustering factor: 10999685, ratio: 1.00
        Fill distribution:
             0 - 19% = 0
            20 - 39% = 0
            40 - 59% = 1
            60 - 79% = 0
            80 - 99% = 7700

    Index TBL_CHAR_IDX1 (0)
        Root page: 3918, depth: 3, leaf buckets: 7780, nodes: 11000000
        Average node length: 11.44, total dup: 66, max dup: 1
        Average key length: 8.45, compression ratio: 1.41
        Average prefix length: 6.43, average data length: 5.45
        Clustering factor: 10999726, ratio: 1.00
        Fill distribution:
             0 - 19% = 1
            20 - 39% = 0
            40 - 59% = 0
            60 - 79% = 0
            80 - 99% = 7779 

select NEW_FIELD
from TBL_CHAR
where NEW_FIELD = '754197905425'

Plan
PLAN (TBL_CHAR INDEX (TBL_CHAR_IDX1))

------ Performance info ------
Prepare time = 31ms
Execute time = 31ms
Avg fetch time = 31,00 ms
Current memory = 4 461 497 488
Max memory = 5 301 318 608
Memory buffers = 262 144
Reads from disk to cache = 0
Writes from cache to disk = 0
Fetches from cache = 12

select NEW_FIELD
from TABLE_INT
where NEW_FIELD = 754197905425

Plan
PLAN (TABLE_INT INDEX (TABLE_INT_IDX1))

------ Performance info ------
Prepare time = 32ms
Execute time = 31ms
Avg fetch time = 31,00 ms
Current memory = 4 461 497 968
Max memory = 5 301 318 608
Memory buffers = 262 144
Reads from disk to cache = 0
Writes from cache to disk = 0
Fetches from cache = 12