object HashJoin extends CastSupport with SQLConfHelper with Serializable
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- def conf: SQLConf
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- def extractKeyExprAt(keys: Seq[Expression], index: Int): Expression
Extract a given key which was previously packed in a long value using its index to determine the number of bits to shift
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- def rewriteKeyExpr(keys: Seq[Expression]): Seq[Expression]
Try to rewrite the key as LongType so we can use getLong(), if they key can fit with a long.
Try to rewrite the key as LongType so we can use getLong(), if they key can fit with a long.
If not, returns the original expressions.
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