[ASTERIXDB-1650] The order of resolving undefined aliases

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Component/s: SQL - Translator SQL++
• Assignee: Yingyi Bu
• Reporter: Yingyi Bu
• Created: 19/Sep/16 17:32
• Updated: 04/Jan/17 01:31
• Resolved: 04/Jan/17 01:31

Description

The order of resolving an undefined alias should be:

Have different resolving mechanism for FROM/UNNEST/Quantifier and others:
– FROM/JOIN/UNNEST/Quantifier: 1. user-defined variables, 2. Datasets
– Others: 1. user-defined variables, 2. field-accesses, 3. Datasets

Always resolving to a dataset as the last option can preserve query stability such that the query semantics will not be perturbed by adding/removing a dataset.