stefankandic commented on code in PR #47226:
URL: https://github.com/apache/spark/pull/47226#discussion_r1666766006
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collationExpressions.scala:
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@@ -38,8 +38,8 @@ import org.apache.spark.sql.types._
Examples:
> SET spark.sql.collation.enabled=true;
spark.sql.collation.enabled true
- > SELECT COLLATION('Spark SQL' _FUNC_ UTF8_LCASE);
- UTF8_LCASE
+ > SELECT _FUNC_('Spark SQL', 'UTF8_LCASE');
+ spark sql
Review Comment:
```suggestion
Spark SQL
```
Collating a string to lowercase collation does not mean to convert it to
lowercase characters.
Lowercase collation just means that strings will be compared as equal if
their lowercase variants are the same, but the string representation does not
change.
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