vvysotskyi commented on a change in pull request #1837: [CALCITE-3835]
Overloaded table functions fail with an assertion error if param types differ
URL: https://github.com/apache/calcite/pull/1837#discussion_r398469196
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File path: core/src/main/java/org/apache/calcite/sql/SqlUtil.java
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@@ -676,14 +680,16 @@ public static boolean matchRoutinesByParameterCount(
}
private static RelDataType bestMatch(List<SqlFunction> sqlFunctions, int i,
- RelDataTypePrecedenceList precList) {
+ List<String> argNames, RelDataTypePrecedenceList precList) {
RelDataType bestMatch = null;
for (SqlFunction function : sqlFunctions) {
List<RelDataType> paramTypes = function.getParamTypes();
if (paramTypes == null) {
continue;
}
- final RelDataType paramType = paramTypes.get(i);
+ final RelDataType paramType = argNames != null
+ ? paramTypes.get(function.getParamNames().indexOf(argNames.get(i)))
Review comment:
I have renamed `filterRoutinesByParameterType()` method and excracted logic
connected with types and names permutation.
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