Github user wzhfy commented on a diff in the pull request: https://github.com/apache/spark/pull/18421#discussion_r126273805 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala --- @@ -93,30 +93,50 @@ class SparkSqlAstBuilder extends AstBuilder { } /** - * Create an [[AnalyzeTableCommand]] command or an [[AnalyzeColumnCommand]] command. - * Example SQL for analyzing table : + * Create an [[AnalyzeTableCommand]] command, or an [[AnalyzePartitionCommand]] + * or an [[AnalyzeColumnCommand]] command. + * Example SQL for analyzing table or a set of partitions : * {{{ - * ANALYZE TABLE table COMPUTE STATISTICS [NOSCAN]; + * ANALYZE TABLE [db_name.]tablename [PARTITION (partcol1[=val1], partcol2[=val2], ...)] + * COMPUTE STATISTICS [NOSCAN]; * }}} + * * Example SQL for analyzing columns : * {{{ - * ANALYZE TABLE table COMPUTE STATISTICS FOR COLUMNS column1, column2; + * ANALYZE TABLE [db_name.]tablename COMPUTE STATISTICS FOR COLUMNS column1, column2; * }}} */ override def visitAnalyze(ctx: AnalyzeContext): LogicalPlan = withOrigin(ctx) { - if (ctx.partitionSpec != null) { - logWarning(s"Partition specification is ignored: ${ctx.partitionSpec.getText}") + if (ctx.identifier != null && + ctx.identifier.getText.toLowerCase(Locale.ROOT) != "noscan") { + throw new ParseException(s"Expected `NOSCAN` instead of `${ctx.identifier.getText}`", ctx) } - if (ctx.identifier != null) { - if (ctx.identifier.getText.toLowerCase(Locale.ROOT) != "noscan") { - throw new ParseException(s"Expected `NOSCAN` instead of `${ctx.identifier.getText}`", ctx) + + val partitionSpec = + if (ctx.partitionSpec != null) { + val filteredSpec = visitPartitionSpec(ctx.partitionSpec).filter(_._2.isDefined) + if (filteredSpec.isEmpty) { + None + } else { + Some(filteredSpec.mapValues(_.get)) + } + } else { + None + } + + val table = visitTableIdentifier(ctx.tableIdentifier) + if (ctx.identifierSeq() == null) { + if (partitionSpec.isDefined) { + AnalyzePartitionCommand(table, partitionSpec.get, noscan = ctx.identifier != null) + } else { + AnalyzeTableCommand(table, noscan = ctx.identifier != null) --- End diff -- @mbasmanova IIUC, the logic is wrong here. For example, when analyzing partition (ds, hr), we should not remove them in parser. Currently we parse it to AnalyzeTableCommand, which collects table-level stats. But what we need to do is to collect partition-level stats for all partitions. Check hive's behavior here
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