feat: Window processor

[mediuminvader]

Implementing WINDOW function as a processor of the DAG

see #893 for details

[coveralls]

Pull Request Test Coverage Report for Build 4364009619

• 362 of 1122 (32.26%) changed or added relevant lines in 10 files are covered.
• 306 unchanged lines in 8 files lost coverage.
• Overall coverage decreased (-1.5%) to 74.509%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
dozer-sql/src/pipeline/errors.rs	0	1	0.0%
dozer-sql/src/pipeline/window/operator.rs	89	92	96.74%
dozer-sql/src/pipeline/product/tests/pipeline_test.rs	0	4	0.0%
dozer-sql/src/pipeline/window/processor.rs	0	43	0.0%
dozer-sql/src/pipeline/window/factory.rs	0	57	0.0%
dozer-sql/src/pipeline/builder.rs	89	156	57.05%
dozer-sql/src/pipeline/window/builder.rs	23	226	10.18%
dozer-sql/src/pipeline/window/tests/pipeline_test.rs	0	382	0.0%

Files with Coverage Reduction	New Missed Lines	%
dozer-api/src/grpc/shared_impl/mod.rs	1	85.71%
dozer-sql/src/pipeline/aggregation/processor.rs	1	97.84%
dozer-api/src/grpc/typed/tests/service.rs	2	97.74%
dozer-storage/src/lmdb_multimap.rs	15	86.61%
dozer-sql/src/pipeline/builder.rs	28	72.42%
dozer-core/src/dag_metadata.rs	45	85.0%
dozer-core/src/dag_impl.rs	69	71.95%
dozer-types/src/types/field.rs	145	65.14%

Totals
Change from base Build 4362929406:	-1.5%
Covered Lines:	27704
Relevant Lines:	37182

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💛 - Coveralls

[snork-alt]

When we return the schema in the factory do we add the window_start and window-end to the pk ?

[mediuminvader]

When we return the schema in the factory do we add the window_start and window-end to the pk ?

@snork-alt

dozer/dozer-sql/src/pipeline/window/operator.rs

Lines 44 to 46 in 8ac855e

	output_schema
	.primary_index
	.push(output_schema.fields.len() - 1);

just window_start