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[SPARK-32792][SQL] Improve Parquet In filter pushdown #29642

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Original file line number Diff line number Diff line change
Expand Up @@ -770,10 +770,10 @@ object SQLConf {

val PARQUET_FILTER_PUSHDOWN_INFILTERTHRESHOLD =
buildConf("spark.sql.parquet.pushdown.inFilterThreshold")
.doc("The maximum number of values to filter push-down optimization for IN predicate. " +
"Large threshold won't necessarily provide much better performance. " +
"The experiment argued that 300 is the limit threshold. " +
"By setting this value to 0 this feature can be disabled. " +
.doc("For IN predicate, Parquet filter will push-down a set of OR clauses if its " +
"number of values not exceeds this threshold. Otherwise, Parquet filter will push-down " +
"a value greater than or equal to its minimum value and less than or equal to " +
"its maximum value. By setting this value to 0 this feature can be disabled. " +
s"This configuration only has an effect when '${PARQUET_FILTER_PUSHDOWN_ENABLED.key}' is " +
"enabled.")
.version("2.4.0")
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