Add more test cases on Hive SQL parser

[menghaoranss]

Fixes #ISSUSE_ID.

Changes proposed in this pull request:

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[Copilot]

Pull request overview

This pull request adds comprehensive test cases for the Hive SQL parser, expanding test coverage for both SELECT and INSERT operations. The PR introduces 19 SELECT test cases and 5 INSERT test cases with corresponding assertion files that validate parser behavior against expected parse tree structures.

• Adds test coverage for basic and advanced Hive SQL features including JOINs, window functions, subqueries, and partitioning
• Implements detailed parse tree assertions with precise character index positions for each SQL construct
• Extends the existing test framework with Hive-specific DML statement tests

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
test/it/parser/src/main/resources/sql/supported/dml/select-hive.xml	Defines 19 SQL test cases covering SELECT operations including simple queries, WHERE clauses, GROUP BY/HAVING, ORDER BY, LIMIT/OFFSET, various JOIN types, UNIONs, DISTINCT, window functions, subqueries, and string/date functions
test/it/parser/src/main/resources/sql/supported/dml/insert-hive.xml	Defines 5 SQL test cases covering INSERT operations including basic INSERT INTO/VALUES, INSERT OVERWRITE, partition inserts, and FROM clause inserts
test/it/parser/src/main/resources/case/dml/select-hive.xml	Contains detailed parse tree assertions for all 19 SELECT test cases, specifying exact character positions for projections, tables, clauses, and expressions
test/it/parser/src/main/resources/case/dml/insert-hive.xml	Contains detailed parse tree assertions for all 5 INSERT test cases, specifying exact character positions for table names, columns, and values

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