diff --git a/core/src/main/java/org/apache/calcite/adapter/enumerable/RexImpTable.java b/core/src/main/java/org/apache/calcite/adapter/enumerable/RexImpTable.java
index c5237ee80414..f1fe432c173b 100644
--- a/core/src/main/java/org/apache/calcite/adapter/enumerable/RexImpTable.java
+++ b/core/src/main/java/org/apache/calcite/adapter/enumerable/RexImpTable.java
@@ -95,6 +95,7 @@
 import static org.apache.calcite.sql.fun.SqlLibraryOperators.JSON_KEYS;
 import static org.apache.calcite.sql.fun.SqlLibraryOperators.JSON_LENGTH;
 import static org.apache.calcite.sql.fun.SqlLibraryOperators.JSON_PRETTY;
+import static org.apache.calcite.sql.fun.SqlLibraryOperators.JSON_REMOVE;
 import static org.apache.calcite.sql.fun.SqlLibraryOperators.JSON_TYPE;
 import static org.apache.calcite.sql.fun.SqlLibraryOperators.TRANSLATE3;
 import static org.apache.calcite.sql.fun.SqlStdOperatorTable.ABS;
@@ -172,7 +173,6 @@
 import static org.apache.calcite.sql.fun.SqlStdOperatorTable.JSON_OBJECT;
 import static org.apache.calcite.sql.fun.SqlStdOperatorTable.JSON_OBJECTAGG;
 import static org.apache.calcite.sql.fun.SqlStdOperatorTable.JSON_QUERY;
-import static org.apache.calcite.sql.fun.SqlStdOperatorTable.JSON_REMOVE;
 import static org.apache.calcite.sql.fun.SqlStdOperatorTable.JSON_VALUE_ANY;
 import static org.apache.calcite.sql.fun.SqlStdOperatorTable.JSON_VALUE_EXPRESSION;
 import static org.apache.calcite.sql.fun.SqlStdOperatorTable.LAG;
diff --git a/core/src/main/java/org/apache/calcite/sql/fun/SqlLibraryOperators.java b/core/src/main/java/org/apache/calcite/sql/fun/SqlLibraryOperators.java
index 9a536e3c0303..c48387a05c0d 100644
--- a/core/src/main/java/org/apache/calcite/sql/fun/SqlLibraryOperators.java
+++ b/core/src/main/java/org/apache/calcite/sql/fun/SqlLibraryOperators.java
@@ -133,19 +133,22 @@ private SqlLibraryOperators() {
   public static final SqlFunction TRANSLATE3 = new SqlTranslate3Function();
 
   @LibraryOperator(libraries = {MYSQL})
-  public static final SqlFunction JSON_TYPE = SqlStdOperatorTable.JSON_TYPE;
+  public static final SqlFunction JSON_TYPE = new SqlJsonTypeFunction();
 
   @LibraryOperator(libraries = {MYSQL})
-  public static final SqlFunction JSON_DEPTH = SqlStdOperatorTable.JSON_DEPTH;
+  public static final SqlFunction JSON_DEPTH = new SqlJsonDepthFunction();
 
   @LibraryOperator(libraries = {MYSQL})
-  public static final SqlFunction JSON_LENGTH = SqlStdOperatorTable.JSON_LENGTH;
+  public static final SqlFunction JSON_LENGTH = new SqlJsonLengthFunction();
 
   @LibraryOperator(libraries = {MYSQL})
-  public static final SqlFunction JSON_KEYS = SqlStdOperatorTable.JSON_KEYS;
+  public static final SqlFunction JSON_KEYS = new SqlJsonKeysFunction();
 
   @LibraryOperator(libraries = {MYSQL})
-  public static final SqlFunction JSON_PRETTY = SqlStdOperatorTable.JSON_PRETTY;
+  public static final SqlFunction JSON_PRETTY = new SqlJsonPrettyFunction();
+
+  @LibraryOperator(libraries = {MYSQL})
+  public static final SqlFunction JSON_REMOVE = new SqlJsonRemoveFunction();
 }
 
 // End SqlLibraryOperators.java
diff --git a/core/src/main/java/org/apache/calcite/sql/fun/SqlStdOperatorTable.java b/core/src/main/java/org/apache/calcite/sql/fun/SqlStdOperatorTable.java
index 2c6fe3750858..9f97d71b2db2 100644
--- a/core/src/main/java/org/apache/calcite/sql/fun/SqlStdOperatorTable.java
+++ b/core/src/main/java/org/apache/calcite/sql/fun/SqlStdOperatorTable.java
@@ -1299,11 +1299,6 @@ public boolean argumentMustBeScalar(int ordinal) {
   public static final SqlFunction JSON_VALUE =
       new SqlJsonValueFunction("JSON_VALUE", false);
 
-  public static final SqlFunction JSON_KEYS = new SqlJsonKeysFunction();
-
-  public static final SqlFunction JSON_PRETTY =
-          new SqlJsonPrettyFunction();
-
   public static final SqlFunction JSON_VALUE_ANY =
       new SqlJsonValueFunction("JSON_VALUE_ANY", true);
 
@@ -1311,20 +1306,30 @@ public boolean argumentMustBeScalar(int ordinal) {
 
   public static final SqlFunction JSON_OBJECT = new SqlJsonObjectFunction();
 
-  public static final SqlFunction JSON_TYPE = new SqlJsonTypeFunction();
-
-  public static final SqlFunction JSON_DEPTH = new SqlJsonDepthFunction();
-
-  public static final SqlFunction JSON_LENGTH = new SqlJsonLengthFunction();
-
-  public static final SqlFunction JSON_REMOVE = new SqlJsonRemoveFunction();
-
   public static final SqlJsonObjectAggAggFunction JSON_OBJECTAGG =
       new SqlJsonObjectAggAggFunction(SqlKind.JSON_OBJECTAGG,
           SqlJsonConstructorNullClause.NULL_ON_NULL);
 
   public static final SqlFunction JSON_ARRAY = new SqlJsonArrayFunction();
 
+  @Deprecated // to be removed before 2.0
+  public static final SqlFunction JSON_TYPE = SqlLibraryOperators.JSON_TYPE;
+
+  @Deprecated // to be removed before 2.0
+  public static final SqlFunction JSON_DEPTH = SqlLibraryOperators.JSON_DEPTH;
+
+  @Deprecated // to be removed before 2.0
+  public static final SqlFunction JSON_LENGTH = SqlLibraryOperators.JSON_LENGTH;
+
+  @Deprecated // to be removed before 2.0
+  public static final SqlFunction JSON_KEYS = SqlLibraryOperators.JSON_KEYS;
+
+  @Deprecated // to be removed before 2.0
+  public static final SqlFunction JSON_PRETTY = SqlLibraryOperators.JSON_PRETTY;
+
+  @Deprecated // to be removed before 2.0
+  public static final SqlFunction JSON_REMOVE = SqlLibraryOperators.JSON_REMOVE;
+
   public static final SqlJsonArrayAggAggFunction JSON_ARRAYAGG =
       new SqlJsonArrayAggAggFunction(SqlKind.JSON_ARRAYAGG,
           SqlJsonConstructorNullClause.ABSENT_ON_NULL);