imback82 commented on a change in pull request #26182: [SPARK-29523][SQL] SHOW
COLUMNS should do multi-catalog resolution.
URL: https://github.com/apache/spark/pull/26182#discussion_r340760416
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/connector/DataSourceV2SQLSuite.scala
##########
@@ -1358,6 +1358,29 @@ class DataSourceV2SQLSuite
}
}
+ test("SHOW COLUMNS") {
+ val t = "testcat.ns1.ns2.tbl"
+ withTable(t) {
+ spark.sql(s"CREATE TABLE $t (id bigint, data string) USING foo")
+
+ val e1 = intercept[AnalysisException] {
+ sql(s"SHOW COLUMNS FROM $t")
+ }
+ assert(e1.message.contains(s"SHOW COLUMNS is only supported with v1
tables."))
+
+ val e2 = intercept[AnalysisException] {
Review comment:
You can do:
```scala
testV1Command("SHOW COLUMNS", s"FROM $t")
testV1Command("SHOW COLUMNS", s"IN $t")
```
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