[pull] main from apache:main

[pull]

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Summary by Sourcery

Enhance Join operator in DataFusion with a new try_new method that automatically computes join schemas and supports various join types and constraints

New Features:

• Add a new try_new method for Join that automatically computes schema based on join type and input plans
• Implement comprehensive schema computation for different join types including Left, Right, Full, Semi, Anti, and Mark joins

Enhancements:

• Improve join schema generation logic to handle nullable columns based on join type
• Add support for complex join conditions with equi-join and filter expressions
• Enhance join constraint handling for USING and ON join types

Tests:

• Add extensive test coverage for new Join constructor
• Validate schema generation for different join types and constraints
• Test null equality and column nullability behavior

Chores:

• Update Cargo.lock and Cargo.toml dependencies
• Refactor join creation methods in LogicalPlanBuilder to use new try_new method

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Reviewer's Guide by Sourcery

This pull request introduces a new try_new constructor for the Join operator that automatically computes the schema based on the join type and inputs. It also updates the LogicalPlanBuilder to use the new constructor and adds comprehensive unit tests. Additionally, it removes a redundant limit check in pushdown_limit_helper function and updates the sqllogictest dependency version.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Introduces a new try_new constructor for the Join operator that automatically computes the schema based on the join type and inputs.	Adds a try_new function to the Join struct. The try_new function computes the schema based on the join type and inputs. The try_new function returns a Result<Self>. The try_new function takes left, right, on, filter, join_type, join_constraint, and null_equals_null as arguments. The try_new function calls build_join_schema to compute the schema. The try_new function creates a new Join struct with the computed schema.	datafusion/expr/src/logical_plan/plan.rs
Updates the LogicalPlanBuilder to use the new Join::try_new constructor.	Replaces the manual construction of the Join struct with a call to Join::try_new in using_join. Replaces the manual construction of the Join struct with a call to Join::try_new in cross_join. Replaces the manual construction of the Join struct with a call to Join::try_new in join_with_expr_keys.	datafusion/expr/src/logical_plan/builder.rs
Adds comprehensive unit tests for the new Join::try_new constructor, covering various join types, constraints, and schema validation scenarios.	Adds a test_join_try_new function to test different join types. Adds a test_join_try_new_with_using_constraint_and_overlapping_columns function to test the USING constraint. Adds a test_join_try_new_schema_validation function to test schema validation.	datafusion/expr/src/logical_plan/plan.rs
Removes redundant limit check in pushdown_limit_helper function.	Removes the conditional check for existing limits on child nodes before setting global_state.satisfied = true.	datafusion/physical-optimizer/src/limit_pushdown.rs
Updates the sqllogictest dependency version.	Updates the sqllogictest dependency from version 0.28.0 to 0.28.1.	datafusion/sqllogictest/Cargo.toml Cargo.lock

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