turboFei edited a comment on issue #27150: [SPARK-30471][SQL] Fix issue when comparing String and IntegerType URL: https://github.com/apache/spark/pull/27150#issuecomment-589916541 1. Spark allows cast like "2.34" to Long/Int before. 2. If we cast String to Long when comparing String and Integer, we need throw NumberFormatException when this String is invalid. 3. Without ansi enabled, `select 2.3 = '2.34'` would return true if we cast String to Decimal when comparing String and decimal.
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