ocean-zhc commented on code in PR #9299:
URL: https://github.com/apache/seatunnel/pull/9299#discussion_r2094704163
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seatunnel-transforms-v2/src/main/java/org/apache/seatunnel/transform/sql/zeta/ZetaSQLType.java:
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@@ -492,7 +492,21 @@ private SeaTunnelDataType<?> getFunctionType(Function
function) {
case ZetaSQLFunction.COALESCE:
case ZetaSQLFunction.IFNULL:
// Result has the same type as first argument
- return
getExpressionType(function.getParameters().getExpressions().get(0));
+ if
(function.getName().equalsIgnoreCase(ZetaSQLFunction.COALESCE)) {
Review Comment:
Because the COALESCE function does a separate first argument non-null
handling
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