[COST-4360] Fix default dtypes mapping for OCI

[myersCody]

Jira Ticket

COST-4360

Description

This change will set the correct dtype defaults to match how we build the trino schema. Highly likely we never ran into it during testing because those columns were always present so they never got defaulted. After seeing this I went through the other providers and they seemed to match correctly.

Testing

SHOW CREATE TABLE oci_usage_line_items;
                                 Create Table
-------------------------------------------------------------------------------
 CREATE TABLE hive.org1234567.oci_usage_line_items (
    lineitem_referenceno varchar,
    lineitem_tenantid varchar,
    lineitem_intervalusagestart timestamp(3),
    lineitem_intervalusageend timestamp(3),
    product_service varchar,
    product_resource varchar,
    product_compartmentid varchar,
    product_compartmentname varchar,
    product_region varchar,
    product_availabilitydomain varchar,
    product_resourceid varchar,
    usage_consumedquantity double,
    usage_billedquantity varchar,
    usage_consumedquantityunits varchar,
    usage_consumedquantitymeasure varchar,
    lineitem_iscorrection varchar,
    lineitem_backreferenceno varchar,
    tags varchar,
    cost_overageflag varchar,
    usage_billedquantityoverage varchar,
    cost_unitpriceoverage varchar,
    cost_productsku varchar,
    cost_skuunitdescription varchar,
    cost_mycostoverage varchar,
    cost_billingunitreadable varchar,
    product_description varchar,
    cost_unitprice varchar,
    cost_currencycode varchar,
    cost_subscriptionid varchar,
    cost_mycost double,
    source varchar,
    year varchar,
    month varchar
 )
 WITH (
    external_location = 's3a://koku-bucket/data/parquet/org1234567/OCI/usage',
    format = 'PARQUET',
    partitioned_by = ARRAY['source','year','month']
 )

Notes

...

[codecov]

Codecov Report

Merging #4830 (031283c) into main (bdd582d) will decrease coverage by 0.0%.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #4830     +/-   ##
=======================================
- Coverage   94.0%   94.0%   -0.0%     
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  Files        364     364             
  Lines      30206   30206             
  Branches    3599    3599             
=======================================
- Hits       28383   28380      -3     
- Misses      1162    1165      +3     
  Partials     661     661             

[sonarqubecloud]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

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