Package dev.frostlake.executor

Class AmbiguousColumnException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

dev.frostlake.executor.AmbiguousColumnException

All Implemented Interfaces:

Serializable

public class AmbiguousColumnException
extends RuntimeException

A bare column name carried by both sides of an ON-joined relation — live's "SQL compilation error: ambiguous column name 'T'". The join FORM is the rule (measured cell by cell): an ON join makes every same-named bare reference ambiguous, inner and left alike, while a USING or NATURAL join resolves EVERY same-named pair to the LEFT side — keys and non-keys both — which is why SELECT d FROM a JOIN b USING (k) answers a.d where the ON spelling of the same join is rejected. Typed so the lenient catch-and-retry fallbacks (the expression visitor's multi-table probe, WhereOperator's strategy chain) can rethrow it: ambiguity is definitive.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
AmbiguousColumnException(String columnName)	Builds the SQL compilation error for a bare column name both sides of an ON join carry.

Method Summary

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

AmbiguousColumnException

public AmbiguousColumnException(String columnName)

Builds the SQL compilation error for a bare column name both sides of an ON join carry.

Parameters:

columnName - the ambiguous bare column name, quoted verbatim in the error message