フリー問題

問題文

A query passes a BIGINT column to a function that expects INT. What does Impala require?

選択肢

1. Impala refuses the narrowing step so the query needs the automatic rounding written around the column, because the engine avoids the implicit conversion that could lose significant precision.
2. Impala refuses the narrowing step so the query needs the explicit CAST written around the column, because the engine avoids the declared default that could lose significant precision.
3. Impala refuses the narrowing step so the query needs the automatic rounding written around the column, because the engine avoids the declared default that could lose significant precision.
4. Impala refuses the narrowing step so the query needs the explicit CAST written around the column, because the engine avoids the implicit conversion that could lose significant precision.