add support for the TRAN keyword (T-SQL)

[AlexGruebel]

Impact

• Bug fix (non-breaking change which fixes expected existing functionality)
• Enhancement/New feature (adds functionality without impacting existing logic)
• Breaking change (fix or feature that would cause existing functionality to change)

Description

This PR fixes #4098. It add support for the T-SQL Keyword "TRAN".

Currently liquibase splits sql statements only, if there are not between a "BEGIN" and "END" statement. Since most database start transactions with the "BEGIN TRANSACTION" command, the StringUtil class which is responsible for splitting statements, does ignore the "BEGIN" keyword if it is followed by the keyword "TRANSACTION".

T-SQL (the sql dialect from mssql-server) also supports a shorter version for "TRANSACTION" => "TRAN". The current version of liquibase does not check for keyword "TRAN". This pull request adds support for this keyword.

Things to be aware of

• I just added the new keyword "TRAN" to the if statement, with intention to change as little as possible

Things to worry about

• the current code also supports the keyword "TRANS", I don't know any database which supports the keyword "TRANS" to start an transaction, maybe this was just a typo and can be removed. But I don't know maybe there is a reason for this:).

Additional Context

[nvoxland]

Initial review:

Change is what I'd expect. Thanks!

Things to be aware of:

• Nothing

Things to worry about:

• Nothing

[filipelautert]

Thanks for the fix @AlexGruebel

[XDelphiGrl]

Rerunning test harness here: https://github.com/liquibase/liquibase-test-harness/actions/runs/4995573646 PASS

Note that this execution reran only the SQL Server database tests; all others passed (except for the endemic Titan issues on our HSQL and Firebird DBs).

[XDelphiGrl]

SQL Server supports the keyword TRANSACTION and the shorter variant, TRAN. This PR extends Liquibase to recognize TRAN and correctly apply delimiters. This prevents SQL execution errors due to improper "chunking" of SQL statements.

• New integration test added with TRAN.
• Functional and test harness executions passing.
• No additional testing required.

APPROVED