[APIC-273] Add Table Columns Parameter

[uttercm]

JIRA Ticket:
APIC-273

Summary:
Adding the table_columns parameter to io methods.

Testing:

• Updated specs
• Performed manual tests

Manual Tests

• import to a pre-existing table with non-drop mode and table columns not specified Job 70574228
• import to pre-existing table with existing_table_rows=drop and table columns not specified Job 70573579
• import to pre-existing table with existing_table_rows=drop and table columns specified Job 70572994
• import to non-existent table with table columns specified Job 70455477
• multiple file import using civis_file_to_table Job 70579238

Notes:

Additional Info:

[elsander]

Tagging @salilgupta1 since Team Sparkle owns the API clients now.

[uttercm]

Tagging @salilgupta1 since Team Sparkle owns the API clients now.

Oh sorry, I forgot that switch happened.

[zacharydfriedlander]

A few thoughts:

[zacharydfriedlander]

These changes look good, but I want to double check a few cases before we move forward with an approval (pending approval as well from maintainers):

• import to a pre-existing table with non-drop mode and table columns not specified - this should work fine.
• import to pre-existing table with existing_table_rows=drop and table columns not specified - this should cause the PreprocessCsv to detect columns.
• import to pre-existing table with existing_table_rows=drop and table columns specified - this should cause the PreprocessCsv not to detect columns.
• import to non-existent table with table columns specified - this should also cause the PreprocessCsv not to detect columns.

We should also double check importing more than one file (with the same schema) with table) with civis_file_to_table directly to make sure that is working as expected.

[uttercm]

manual tests ran added to description of the PR

[mheilman]

I'm cool with this. I defer to @zacharydfriedlander for final approval

[mheilman]

also, thanks!

[zacharydfriedlander]

LGTM!

[uttercm]

sorry figured we should update the changelog

[mheilman]

LGTM