Github user mbasmanova commented on a diff in the pull request:
https://github.com/apache/spark/pull/18421#discussion_r124546295
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala ---
@@ -95,25 +95,32 @@ class SparkSqlAstBuilder(conf: SQLConf) extends
AstBuilder(conf) {
* {{{
* ANALYZE TABLE table COMPUTE STATISTICS [NOSCAN];
* }}}
+ * Example SQL for analyzing a single partition :
+ * {{{
+ * ANALYZE TABLE table PARTITION (key=value,..) COMPUTE STATISTICS
[NOSCAN];
--- End diff --
I'm seeing that visitNonOptionalPartitionSpec detects unset partition
columns and throws an exception: Found an empty partition key '$key'. Is this
sufficient or do you have something else in mind?
/**
* Create a partition specification map without optional values.
*/
protected def visitNonOptionalPartitionSpec(
ctx: PartitionSpecContext): Map[String, String] = withOrigin(ctx) {
visitPartitionSpec(ctx).map {
case (key, None) => throw new ParseException(s"Found an empty
partition key '$key'.", ctx)
case (key, Some(value)) => key -> value
}
}
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