feat(query-orchestrator): introduce unload without temp table

[frolovdev]

Check List

• Tests has been run in packages where changes made if available
• Linter has been run for changed code
• Tests for the changes have been added if not covered yet
• Docs have been added / updated if required

Issue Reference this PR resolves

[For example #12]

Description of Changes Made (if issue reference is not provided)

[Description goes here]

[codecov]

Codecov Report

Base: 84.19% // Head: 60.15% // Decreases project coverage by -24.04% ⚠️

Coverage data is based on head (217b6ba) compared to base (ae78a8d).
Patch coverage: 77.63% of modified lines in pull request are covered.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #5324       +/-   ##
===========================================
- Coverage   84.19%   60.15%   -24.05%     
===========================================
  Files         135      140        +5     
  Lines       21367    11684     -9683     
  Branches        0     2945     +2945     
===========================================
- Hits        17991     7028    -10963     
- Misses       3376     4150      +774     
- Partials        0      506      +506     

Flag	Coverage Δ
cube-backend	60.15% <77.63%> (?)
cubesql	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ackages/cubejs-base-driver/src/driver.interface.ts	50.00% <ø> (ø)
packages/cubejs-base-driver/src/BaseDriver.ts	27.16% <50.00%> (ø)
...y-orchestrator/src/orchestrator/PreAggregations.ts	79.46% <78.37%> (ø)
...pile/engine/information_schema/postgres/pg_enum.rs
rust/cubesql/cubeclient/src/apis/mod.rs
rust/cubesql/cubeclient/src/apis/configuration.rs
rust/cubesql/cubesql/src/compile/service.rs
...rmation_schema/postgres/referential_constraints.rs
rust/cubesql/cubesql/src/error.rs
rust/cubesql/cubesql/src/sql/types.rs
... and 268 more

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