pan3793 commented on code in PR #7029:
URL: https://github.com/apache/kyuubi/pull/7029#discussion_r2062481435
##########
kyuubi-server/src/main/scala/org/apache/kyuubi/server/metadata/jdbc/JdbcDatabaseDialect.scala:
##########
@@ -19,14 +19,71 @@ package org.apache.kyuubi.server.metadata.jdbc
trait JdbcDatabaseDialect {
def limitClause(limit: Int, offset: Int): String
+ def insertOrReplace(
+ table: String,
+ cols: Seq[String],
+ keyCol: String,
+ keyVal: String): String
}
class GenericDatabaseDialect extends JdbcDatabaseDialect {
override def limitClause(limit: Int, offset: Int): String = {
s"LIMIT $limit OFFSET $offset"
}
+
+ override def insertOrReplace(
+ table: String,
+ cols: Seq[String],
+ keyCol: String,
+ keyVal: String): String = {
+ s"""
+ |INSERT INTO $table (${cols.mkString(",")})
+ |SELECT ${cols.map(_ => "?").mkString(",")}
+ |WHERE NOT EXISTS (
+ | SELECT 1 FROM $table WHERE $keyCol = '$keyVal')
+ |)
+ |""".stripMargin
Review Comment:
lgtm
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