Github user mgaido91 commented on a diff in the pull request:
https://github.com/apache/spark/pull/22494#discussion_r219493091
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala ---
@@ -1345,6 +1345,16 @@ object SQLConf {
.booleanConf
.createWithDefault(true)
+ val LITERAL_PRECISE_PRECISION =
+ buildConf("spark.sql.literal.precisePrecision")
+ .internal()
+ .doc("When integral literals are used with decimals in binary
operators, Spark will " +
+ "pick a precise precision for the literals to calculate the
precision and scale " +
--- End diff --
`a precise precision` -> `the minimal precision required to represent the
given value`?
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