Github user hvanhovell commented on a diff in the pull request:
https://github.com/apache/spark/pull/14482#discussion_r73387263
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala
---
@@ -349,6 +384,27 @@ trait CheckAnalysis extends PredicateHelper {
|${s.catalogTable.identifier}
""".stripMargin)
+ case c @ CreateTable(tableDesc, mode, query) if c.resolved =>
+ // Since we are saving table metadata to metastore, we should
make sure the table name
+ // and database name don't break some common restrictions,
e.g. special chars except
+ // underscore are not allowed.
+ val pattern = Pattern.compile("[\\w_]+")
--- End diff --
Move this somewhere we can reuse it.
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