[sohailshk]

What this PR does / why we need it:

arrow_to_pg_type builds the CREATE TABLE for a pandas entity dataframe in the Postgres offline store. Some of its names are not Postgres types, and some types are not mapped:

Arrow type	master	this PR
int8	tinyint (error: type does not exist)	smallint
binary	binary (error: type does not exist)	bytea (also large_binary)
null (all-None column)	null (syntax error)	text
date32, date64	ValueError: Unsupported type	date
decimal128(p, s)	ValueError: Unsupported type	numeric

Each case was checked with df_to_postgres_table on a local PostgreSQL 18.4: 5 of 5 fail on master, 5 of 5 create and fill the table with this change (date64 checked only in the unit test). Decimal maps to plain numeric because this function only gets the type string, and an unconstrained Postgres numeric stores any decimal value exactly.

Adds a parametrized test in test_type_map.py (7 cases, all fail on master).

Which issue(s) this PR fixes:

N/A (no existing issue)

Checks

• I've made sure the tests are passing.
• My commits are signed off (git commit -s)
• My PR title follows conventional commits format

Testing Strategy

• Unit tests
• Integration tests
• Manual tests
• Testing is not required for this change

Misc

pytest tests/unit/test_type_map.py: 369 passed.

[codecov-commenter]

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 52.40%. Comparing base (5eefef9) to head (a220e8a).
⚠️ Report is 4 commits behind head on master.
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Additional details and impacted files

@@           Coverage Diff           @@
##           master    #7142   +/-   ##
=======================================
  Coverage   52.39%   52.40%           
=======================================
  Files         459      459           
  Lines       58156    58160    +4     
  Branches     8572     8574    +2     
=======================================
+ Hits        30470    30476    +6     
+ Misses      25606    25604    -2     
  Partials     2080     2080           

Flag	Coverage Δ
go-feature-server	30.96% <ø> (ø)
python-unit	53.90% <100.00%> (+<0.01%)	⬆️

Files with missing lines	Coverage Δ
sdk/python/feast/type_map.py	65.78% <100.00%> (+0.40%)	⬆️

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[sohailshk]

The only red job is unit-test-python (3.11, macos-15): 3987 passed, 54 skipped and 1 error in the setup of tests/unit/test_feature_server.py::test_push_and_get (AssertionError: stdout: b'', the feature server subprocess printed nothing). That is the same macOS 3.11 setup error as on #7124, and this PR only changes arrow_to_pg_type and its tests. Could someone re-run that job?