Feature: Align TRIM Functions with Snowflake Syntax (TRIM, LTRIM, RTRIM)

[inviscid]

Summary

The current syntax for using TRIM() requires composing a text base value within the function call. This diverges from the Snowflake syntax for TRIM, LTRIM, and RTRIM. For example:

SELECT TRIM(LEADING 'xxx' FROM 'xxxdatabend' );

This also creates problems when trying abstract away from direct SQL statements such as the use of SQLAlchemy. Ideally, the trim operations can be called with a clear function call like:

SELECT LTRIM('xxxdatabendxxx', 'x')

This would align with both Snowflake and Postgres syntax better.