[clean](function) remove FunctionSet class

fe/fe-core/src/main/java/org/apache/doris/analysis/DataDescription.java

@@ -21,7 +21,6 @@
 import org.apache.doris.catalog.Column;
 import org.apache.doris.catalog.Database;
 import org.apache.doris.catalog.Env;
-import org.apache.doris.catalog.FunctionSet;
 import org.apache.doris.catalog.OlapTable;
 import org.apache.doris.catalog.info.PartitionNamesInfo;
 import org.apache.doris.common.AnalysisException;
@@ -92,7 +91,7 @@ public class DataDescription {
             "md5sum",
             "replace_value",
             "now",
-            FunctionSet.HLL_HASH,
+            "hll_hash",
             "substitute");
 
     private static final String DEFAULT_READ_JSON_BY_LINE = "true";

fe/fe-core/src/main/java/org/apache/doris/catalog/Env.java

@@ -462,7 +462,6 @@ public class Env {
     private ColocateTableIndex colocateTableIndex;
 
     private CatalogRecycleBin recycleBin;
-    private FunctionSet functionSet;
 
     // for nereids
     private FunctionRegistry functionRegistry;
@@ -761,7 +760,6 @@ public Env(boolean isCheckpointCatalog) {
         this.tabletInvertedIndex = EnvFactory.getInstance().createTabletInvertedIndex();
         this.colocateTableIndex = new ColocateTableIndex();
         this.recycleBin = new CatalogRecycleBin();
-        this.functionSet = new FunctionSet();
 
         this.functionRegistry = new FunctionRegistry();
 
@@ -6510,14 +6508,6 @@ public FunctionRegistry getFunctionRegistry() {
         return functionRegistry;
     }
 
-    public boolean isNondeterministicFunction(String funcName) {
-        return functionSet.isNondeterministicFunction(funcName);
-    }
-
-    public boolean isNullResultWithOneNullParamFunction(String funcName) {
-        return functionSet.isNullResultWithOneNullParamFunctions(funcName);
-    }
-
     @Deprecated
     public long loadCluster(DataInputStream dis, long checksum) throws IOException, DdlException {
         return getInternalCatalog().loadCluster(dis, checksum);

fe/fe-core/src/main/java/org/apache/doris/nereids/load/NereidsDataDescription.java

@@ -26,7 +26,6 @@
 import org.apache.doris.catalog.Column;
 import org.apache.doris.catalog.Database;
 import org.apache.doris.catalog.Env;
-import org.apache.doris.catalog.FunctionSet;
 import org.apache.doris.catalog.KeysType;
 import org.apache.doris.catalog.OlapTable;
 import org.apache.doris.catalog.info.PartitionNamesInfo;
@@ -104,7 +103,7 @@ public class NereidsDataDescription {
             "md5sum",
             "replace_value",
             "now",
-            FunctionSet.HLL_HASH,
+            "hll_hash",
             "substitute");
 
     private static final String DEFAULT_READ_JSON_BY_LINE = "true";
@@ -497,7 +496,7 @@ public static void validateMappingFunction(String functionName, List<String> arg
             validateMd5sum(args, columnNameMap);
         } else if (functionName.equalsIgnoreCase("replace_value")) {
             validateReplaceValue(args, mappingColumn);
-        } else if (functionName.equalsIgnoreCase(FunctionSet.HLL_HASH)) {
+        } else if (functionName.equalsIgnoreCase("hll_hash")) {
             validateHllHash(args, columnNameMap);
         } else if (functionName.equalsIgnoreCase("now")) {
             validateNowFunction(mappingColumn);

fe/fe-core/src/main/java/org/apache/doris/nereids/load/NereidsLoadScanProvider.java

@@ -19,7 +19,6 @@
 
 import org.apache.doris.catalog.AggregateType;
 import org.apache.doris.catalog.Column;
-import org.apache.doris.catalog.FunctionSet;
 import org.apache.doris.catalog.OlapTable;
 import org.apache.doris.catalog.PrimitiveType;
 import org.apache.doris.catalog.Table;
@@ -72,6 +71,8 @@
  */
 public class NereidsLoadScanProvider {
     private static final Logger LOG = LogManager.getLogger(NereidsLoadScanProvider.class);
+    private static final String HLL_HASH = "hll_hash";
+    private static final String HLL_FROM_BASE64 = "hll_from_base64";
     private NereidsFileGroupInfo fileGroupInfo;
     private Set<String> partialUpdateInputColumns;
 
@@ -314,17 +315,17 @@ private void fillContextExprMap(List<NereidsImportColumnDesc> columnDescList, Ne
                 // check hll_hash
                 if (column.getDataType() == PrimitiveType.HLL) {
                     if (!(expression instanceof UnboundFunction)) {
-                        throw new AnalysisException("HLL column must use " + FunctionSet.HLL_HASH + " function, like "
-                                + columnName + "=" + FunctionSet.HLL_HASH + "(xxx)");
+                        throw new AnalysisException("HLL column must use " + HLL_HASH + " function, like "
+                                + columnName + "=" + HLL_HASH + "(xxx)");
                     }
                     UnboundFunction function = (UnboundFunction) expression;
                     String functionName = function.getName();
-                    if (!functionName.equalsIgnoreCase(FunctionSet.HLL_HASH)
+                    if (!functionName.equalsIgnoreCase(HLL_HASH)
                             && !functionName.equalsIgnoreCase("hll_empty")
-                            && !functionName.equalsIgnoreCase(FunctionSet.HLL_FROM_BASE64)) {
-                        throw new AnalysisException("HLL column must use " + FunctionSet.HLL_HASH + " function, like "
-                                + columnName + "=" + FunctionSet.HLL_HASH + "(xxx) or "
-                                + columnName + "=" + FunctionSet.HLL_FROM_BASE64 + "(xxx) or "
+                            && !functionName.equalsIgnoreCase(HLL_FROM_BASE64)) {
+                        throw new AnalysisException("HLL column must use " + HLL_HASH + " function, like "
+                                + columnName + "=" + HLL_HASH + "(xxx) or "
+                                + columnName + "=" + HLL_FROM_BASE64 + "(xxx) or "
                                 + columnName + "=hll_empty()");
                     }
                 }

fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/agg/LinearHistogram.java

@@ -17,7 +17,6 @@
 
 package org.apache.doris.nereids.trees.expressions.functions.agg;
 
-import org.apache.doris.catalog.FunctionSet;
 import org.apache.doris.catalog.FunctionSignature;
 import org.apache.doris.nereids.trees.expressions.Expression;
 import org.apache.doris.nereids.trees.expressions.functions.ExplicitlyCastableSignature;
@@ -46,23 +45,19 @@ public class LinearHistogram extends NotNullableAggregateFunction implements Exp
     );
 
     public LinearHistogram(Expression arg0, Expression arg1) {
-        super(FunctionSet.LINEAR_HISTOGRAM, arg0, arg1);
+        super("linear_histogram", arg0, arg1);
     }
 
     public LinearHistogram(Expression arg0, Expression arg1, Expression arg2) {
-        super(FunctionSet.LINEAR_HISTOGRAM, arg0, arg1, arg2);
-    }
-
-    private LinearHistogram(boolean distinct, List<Expression> args) {
-        super(FunctionSet.LINEAR_HISTOGRAM, distinct, args);
+        super("linear_histogram", arg0, arg1, arg2);
     }
 
     public LinearHistogram(boolean distinct, Expression arg0, Expression arg1) {
-        super(FunctionSet.LINEAR_HISTOGRAM, distinct, arg0, arg1);
+        super("linear_histogram", distinct, arg0, arg1);
     }
 
     public LinearHistogram(boolean distinct, Expression arg0, Expression arg1, Expression arg2) {
-        super(FunctionSet.LINEAR_HISTOGRAM, distinct, arg0, arg1, arg2);
+        super("linear_histogram", distinct, arg0, arg1, arg2);
     }
 
     /** constructor for withChildren and reuse signature */

fe/fe-core/src/main/java/org/apache/doris/planner/normalize/ExprNormalizeVisitor.java

@@ -23,12 +23,15 @@
 import org.apache.doris.analysis.FunctionCallExpr;
 import org.apache.doris.analysis.LambdaFunctionCallExpr;
 import org.apache.doris.analysis.SlotRef;
-import org.apache.doris.catalog.FunctionSet;
 import org.apache.doris.thrift.TExpr;
 import org.apache.doris.thrift.TExprNode;
 import org.apache.doris.thrift.TExprNodeType;
 import org.apache.doris.thrift.TSlotRef;
 
+import com.google.common.collect.ImmutableSet;
+
+import java.util.Set;
+
 /**
  * Visitor that produces a normalized {@link TExprNode} for query cache support.
  * Normalization maps slot IDs and tuple IDs through the {@link Normalizer} so that
@@ -78,9 +81,8 @@ public Void visitSlotRef(SlotRef expr, TExprNode msg) {
     @Override
     public Void visitFunctionCallExpr(FunctionCallExpr expr, TExprNode msg) {
         String functionName = expr.getFnName().getFunction().toUpperCase();
-        if (FunctionSet.nonDeterministicFunctions.contains(functionName)
-                || "NOW".equals(functionName)
-                || (FunctionSet.nonDeterministicTimeFunctions.contains(functionName)
+        if (nonDeterministicFunctions.contains(functionName)
+                || (nonDeterministicTimeFunctions.contains(functionName)
                         && expr.getChildren().isEmpty())) {
             throw new IllegalStateException("Can not normalize non deterministic functions");
         }
@@ -96,4 +98,30 @@ public Void visitLambdaFunctionCallExpr(LambdaFunctionCallExpr expr, TExprNode m
 
     // All other visitXxx methods inherit from ExprVisitor and call visit(),
     // which delegates to ExprToThriftVisitor.INSTANCE.
+
+    private static final Set<String> nonDeterministicFunctions =
+            ImmutableSet.<String>builder()
+                    .add("RAND")
+                    .add("RANDOM")
+                    .add("RANDOM_BYTES")
+                    .add("CONNECTION_ID")
+                    .add("DATABASE")
+                    .add("USER")
+                    .add("UUID")
+                    .add("CURRENT_USER")
+                    .add("UUID_NUMERIC")
+                    .build();
+
+    private static final Set<String> nonDeterministicTimeFunctions =
+            ImmutableSet.<String>builder()
+                    .add("NOW")
+                    .add("CURDATE")
+                    .add("CURRENT_DATE")
+                    .add("UTC_TIMESTAMP")
+                    .add("CURTIME")
+                    .add("CURRENT_TIMESTAMP")
+                    .add("CURRENT_TIME")
+                    .add("UNIX_TIMESTAMP")
+                    .add()
+                    .build();
 }

fe/fe-core/src/test/java/org/apache/doris/qe/OlapQueryCacheTest.java

@@ -26,7 +26,6 @@
 import org.apache.doris.catalog.Column;
 import org.apache.doris.catalog.Database;
 import org.apache.doris.catalog.Env;
-import org.apache.doris.catalog.FunctionSet;
 import org.apache.doris.catalog.KeysType;
 import org.apache.doris.catalog.MaterializedIndex;
 import org.apache.doris.catalog.MaterializedIndex.IndexState;
@@ -149,9 +148,6 @@ Env getCurrentEnv() {
             }
         };
 
-        FunctionSet fs = new FunctionSet();
-        Deencapsulation.setField(env, "functionSet", fs);
-
         channel.reset();
 
         new Expectations(channel) {