OrderNumberResolver, validation, and cleaner services had incomplete
PostgreSQL support - they only handled SQL Server and MySQL, causing
PostgreSQL to fall through to MySQL code paths with invalid syntax
(backticks, ? placeholders) and missing schema.table name splitting.
Changes:
- Add PostgreSQL SQL generation ($N params, double-quoted identifiers)
in OrderNumberResolver, validation-application-service,
production-input-service, and validation-database
- Add PostgreSQL to database factory functions in validation-database
and cleaner-application-service
- Add UPPER, LOWER, and 40+ common SQL functions to SQL_KEYWORDS to
prevent prepareSql() from quoting them as identifiers
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
