gengliangwang commented on code in PR #46267:
URL: https://github.com/apache/spark/pull/46267#discussion_r1591551240
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala:
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@@ -4996,6 +4996,60 @@ class AstBuilder extends DataTypeAstBuilder with
SQLConfHelper with Logging {
query = plan(ctx.query))
}
+ /**
+ * Defined the schema binding mode during CREATE or ALTER VIEW.
+ * The method also accept a NULL context, in which case it will return the
session default
+ *
+ * {{{
+ * WITH SCHEMA [ BINDING | COMPENSATION | TYPE EVOLUTION | EVOLUTION ]
+ * }}}
+ */
+ override def visitSchemaBinding(ctx: SchemaBindingContext): ViewSchemaMode =
{
+ if (ctx == null) {
+ // No schema binding specified, return the session default
+ conf.viewSchemaBinding match {
+ case SchemaBinding.toString => SchemaBinding
+ case SchemaEvolution.toString => SchemaEvolution
+ case SchemaCompensation.toString => SchemaCompensation
+ case SchemaTypeEvolution.toString => SchemaTypeEvolution
+ case other => SchemaUnsupported
+ }
+ } else if (SQLConf.get.viewSchemaBinding == "UNSUPPORTED") {
Review Comment:
```suggestion
} else if (conf.viewSchemaBinding == "UNSUPPORTED") {
```
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