diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/regexpExpressions.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/regexpExpressions.scala
index 7891c2868e366..fc71943495bc7 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/regexpExpressions.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/regexpExpressions.scala
@@ -40,7 +40,7 @@ abstract class StringRegexExpression extends BinaryExpression
 
   // try cache the pattern for Literal
   private lazy val cache: Pattern = right match {
-    case Literal(value: String, StringType) => compile(value)
+    case Literal(value: UTF8String, StringType) => compile(value.toString)
     case _ => null
   }
 
diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/RegexpExpressionsSuite.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/RegexpExpressionsSuite.scala
index 86da62bc74940..712d2bc4c4736 100644
--- a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/RegexpExpressionsSuite.scala
+++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/RegexpExpressionsSuite.scala
@@ -329,4 +329,12 @@ class RegexpExpressionsSuite extends SparkFunSuite with ExpressionEvalHelper {
     checkEvaluation(StringSplit(s1, s2, -1), null, row3)
   }
 
+  test("SPARK-30759: cache initialization for literal patterns") {
+    val expr = "A" like Literal.create("a", StringType)
+    expr.eval()
+    val cache = expr.getClass.getSuperclass
+      .getDeclaredFields.filter(_.getName.endsWith("cache")).head
+    cache.setAccessible(true)
+    assert(cache.get(expr).asInstanceOf[java.util.regex.Pattern].pattern().contains("a"))
+  }
 }