.. _2026-09-27-multiple-as-alias-fix_release:

=================================================================================
2026-09-27 - Output Names With Multiple AS Keywords Parsed Correctly
=================================================================================

Release
==================
AgileData.io - Cleaner Parsing: Complex Expressions No Longer Confuse Output Names

When a rule's output expression contained more than one ``AS`` keyword, for example ``CAST(x AS STRING) AS customer_code``, the rule parser could pick up the wrong part of the expression as the output column name. This produced incorrect column names or rules that failed to parse.

The parser now uses the final ``AS`` as the output alias, so expressions containing casts and other ``AS`` clauses resolve to the name you intended.

**What was happening:**

* Output names taken from the wrong ``AS`` in expressions such as casts
* Unexpected column names or parse failures on otherwise valid rules

**What this means for you:**

* Write natural SQL expressions without workarounds
* Output columns named exactly as you specified

Last Refreshed
===========================
*Doc Refreshed: 2026-10-21*