cloud-fan commented on code in PR #53158:
URL: https://github.com/apache/spark/pull/53158#discussion_r2609910517
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sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala:
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@@ -724,6 +724,65 @@ class SparkSqlAstBuilder extends AstBuilder {
}
}
+ override def visitCodeLiteral(ctx: CodeLiteralContext): String = {
+ assert(ctx != null)
+ dollarQuotedString(ctx.DOLLAR_QUOTED_STRING_BODY())
+ }
+
+ override def visitCreateMetricView(ctx: CreateMetricViewContext):
LogicalPlan = withOrigin(ctx) {
+ checkDuplicateClauses(ctx.commentSpec(), "COMMENT", ctx)
+ checkDuplicateClauses(ctx.TBLPROPERTIES, "TBLPROPERTIES", ctx)
+ checkDuplicateClauses(ctx.routineLanguage(), "LANGUAGE", ctx)
+ checkDuplicateClauses(ctx.METRICS(), "WITH METRICS", ctx)
+ val userSpecifiedColumns = Option(ctx.identifierCommentList).toSeq.flatMap
{ icl =>
+ icl.identifierComment.asScala.map { ic =>
+ ic.identifier.getText -> Option(ic.commentSpec()).map(visitCommentSpec)
+ }
+ }
+
+ if (ctx.EXISTS != null && ctx.REPLACE != null) {
+ throw
QueryParsingErrors.createViewWithBothIfNotExistsAndReplaceError(ctx)
+ }
+
+ if (ctx.METRICS(0) == null) {
+ throw QueryParsingErrors.missingClausesForOperation(
+ ctx, "WITH METRICS", "CREATE METRIC VIEW")
+ }
+
+ if (ctx.routineLanguage(0) == null) {
+ throw QueryParsingErrors.missingClausesForOperation(
+ ctx, "LANGUAGE", "CREATE METRIC VIEW")
+ }
+
+ val languageCtx = ctx.routineLanguage(0)
+ withOrigin(languageCtx) {
+ if (languageCtx.SQL() != null) {
+ operationNotAllowed("Unsupported language for metric view: SQL", ctx)
+ }
+ val name: String = languageCtx.IDENTIFIER().getText
+ if (!name.equalsIgnoreCase("YAML")) {
+ operationNotAllowed(s"Unsupported language for metric view: $name",
ctx)
+ }
+ }
+
+ val properties = ctx.propertyList.asScala.headOption
+ .map(visitPropertyKeyValues)
+ .getOrElse(Map.empty)
+ val codeLiteral = visitCodeLiteral(ctx.codeLiteral())
+
+ withIdentClause(ctx.identifierReference(), ident => {
Review Comment:
I think it's simpler to do
```
CreateMetricViewCommand(
withIdentClause(...),
userSpecifiedColumns,
visitCommentSpecList(ctx.commentSpec()),
properties,
codeLiteral,
allowExisting = ctx.EXISTS != null,
replace = ctx.REPLACE != null
)
```
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