@Override
protected Type visitInPredicate(InPredicate node, AnalysisContext context) {
Expression value = node.getValue();
process(value, context);
Expression valueList = node.getValueList();
process(valueList, context);
if (valueList instanceof InListExpression) {
InListExpression inListExpression = (InListExpression) valueList;
coerceToSingleType(
context,
"IN value and list items must be the same type: %s",
ImmutableList.<Expression>builder()
.add(value)
.addAll(inListExpression.getValues())
.build());
} else if (valueList instanceof SubqueryExpression) {
coerceToSingleType(
context,
node,
"value and result of subquery must be of the same type for IN expression: %s vs %s",
value,
valueList);
subqueryInPredicates.add(node);
}
expressionTypes.put(node, BOOLEAN);
return BOOLEAN;
}
@Override
protected Type visitInListExpression(InListExpression node, AnalysisContext context) {
Type type =
coerceToSingleType(
context, "All IN list values must be the same type: %s", node.getValues());
expressionTypes.put(node, type);
return type; // TODO: this really should a be relation type
}
@Override
protected String visitInListExpression(InListExpression node, Boolean unmangleNames) {
return "(" + joinExpressions(node.getValues(), unmangleNames) + ")";
}