# Class: WildcardColumnInferenceCollector
Defined in: packages/core/src/transformers/WildcardColumnInferenceCollector.ts:147
Infers the subset of wildcard columns required by downstream references.
This collector only returns metadata. It does not rewrite SQL and does not attempt full table-column discovery. When ownership is ambiguous, the requirement is reported as unresolved.
Constructors ​
Constructor ​
new WildcardColumnInferenceCollector():
WildcardColumnInferenceCollector
Returns ​
WildcardColumnInferenceCollector
Methods ​
collect() ​
collect(
query):WildcardColumnInferenceResult[]
Defined in: packages/core/src/transformers/WildcardColumnInferenceCollector.ts:157
Collect wildcard column inference metadata for CTEs and derived tables visible in a SELECT query.