Examples with HiveTableSqlFunction org.apache.flink.table.planner.functions.utils.HiveTableSqlFunction used on opensource projects

Example 1 with HiveTableSqlFunction

use of org.apache.flink.table.planner.functions.utils.HiveTableSqlFunction in project flink by apache.

the class FunctionCatalogOperatorTable method convertToSqlFunction.

private Optional<SqlFunction> convertToSqlFunction(@Nullable SqlFunctionCategory category, ContextResolvedFunction resolvedFunction) {
    final FunctionDefinition definition = resolvedFunction.getDefinition();
    final FunctionIdentifier identifier = resolvedFunction.getIdentifier().orElse(null);
    // legacy
    if (definition instanceof AggregateFunctionDefinition) {
        AggregateFunctionDefinition def = (AggregateFunctionDefinition) definition;
        if (isHiveFunc(def.getAggregateFunction())) {
            return Optional.of(new HiveAggSqlFunction(identifier, def.getAggregateFunction(), typeFactory));
        } else {
            return convertAggregateFunction(identifier, (AggregateFunctionDefinition) definition);
        }
    } else if (definition instanceof ScalarFunctionDefinition) {
        ScalarFunctionDefinition def = (ScalarFunctionDefinition) definition;
        return convertScalarFunction(identifier, def);
    } else if (definition instanceof TableFunctionDefinition && category != null && category.isTableFunction()) {
        TableFunctionDefinition def = (TableFunctionDefinition) definition;
        if (isHiveFunc(def.getTableFunction())) {
            DataType returnType = fromLegacyInfoToDataType(new GenericTypeInfo<>(Row.class));
            return Optional.of(new HiveTableSqlFunction(identifier, def.getTableFunction(), returnType, typeFactory, new DeferredTypeFlinkTableFunction(def.getTableFunction(), returnType), HiveTableSqlFunction.operandTypeChecker(identifier.toString(), def.getTableFunction())));
        } else {
            return convertTableFunction(identifier, (TableFunctionDefinition) definition);
        }
    }
    // new stack
    return convertToBridgingSqlFunction(category, resolvedFunction);
}