Merge pull request: [BEAM-9140] Upgrade to ZetaSQL 2020.01.1

diff --git a/sdks/java/extensions/sql/zetasql/build.gradle b/sdks/java/extensions/sql/zetasql/build.gradle
index 330209b..06b265e 100644
--- a/sdks/java/extensions/sql/zetasql/build.gradle
+++ b/sdks/java/extensions/sql/zetasql/build.gradle
@@ -25,7 +25,7 @@
 description = "Apache Beam :: SDKs :: Java :: Extensions :: SQL :: ZetaSQL"
 ext.summary = "ZetaSQL to Calcite translator"
 
-def zetasql_version = "2019.12.1"
+def zetasql_version = "2020.01.1"
 
 dependencies {
   compile project(":sdks:java:core")