[fix][dingo-calcite] Fix date_format to support timestamp type and repair date function

Author: wt0530

dingo-calcite/src/main/java/io/dingodb/calcite/fun/DingoOperatorTable.java

@@ -255,6 +255,7 @@ private void init() {
             // Because if there are any optional operands, casting is disabled.
             OperandTypes.or(
                 family(SqlTypeFamily.DATE, SqlTypeFamily.STRING),
+                family(SqlTypeFamily.TIMESTAMP, SqlTypeFamily.STRING),
                 OperandTypes.DATE
             ),
             SqlFunctionCategory.STRING

dingo-common/src/main/java/io/dingodb/common/type/converter/DataConverter.java

@@ -19,6 +19,7 @@
 import io.dingodb.common.log.LogUtils;
 import io.dingodb.common.type.DingoType;
 import io.dingodb.expr.common.type.Type;
+import io.dingodb.expr.runtime.utils.DateTimeUtils;
 import org.checkerframework.checker.nullness.qual.NonNull;
 
 import java.math.BigDecimal;
@@ -192,6 +193,8 @@ default Date convertDateFrom(@NonNull Object value) {
             return new Date(localDateTime.atZone(ZoneId.of("UTC")).toInstant().toEpochMilli());
         } else if (value instanceof Date) {
             return (Date) value;
+        } else if (value instanceof String) {
+            return DateTimeUtils.parseDate((String) value);
         } else {
             return new Date(System.currentTimeMillis());
         }
@@ -206,6 +209,8 @@ default Time convertTimeFrom(@NonNull Object value) {
         } else if (value instanceof Timestamp) {
             Timestamp timestamp = (Timestamp) value;
             return new Time(timestamp.getTime());
+        } else if (value instanceof String) {
+            return DateTimeUtils.parseTime((String) value);
         } else {
             return new Time(System.currentTimeMillis());
         }
@@ -217,6 +222,8 @@ default Timestamp convertTimestampFrom(@NonNull Object value) {
         } else if (value instanceof Date) {
             Date date = (Date) value;
             return new Timestamp(date.getTime());
+        } else if (value instanceof String) {
+            return DateTimeUtils.parseTimestamp((String) value);
         } else {
             return new Timestamp(System.currentTimeMillis());
         }

dingo-exec/src/main/java/io/dingodb/exec/fun/DateFun.java

@@ -22,7 +22,6 @@
 import io.dingodb.expr.runtime.op.UnaryOp;
 
 import java.io.Serial;
-import java.sql.Date;
 import java.sql.Timestamp;
 import java.time.DateTimeException;
 import java.time.LocalDate;
@@ -35,6 +34,7 @@
 import java.time.format.DateTimeParseException;
 import java.time.temporal.TemporalAccessor;
 import java.util.ArrayList;
+import java.util.Date;
 import java.util.List;
 import java.util.Locale;
 import java.util.regex.Matcher;
@@ -142,7 +142,7 @@ private static String handleTimestamp(Timestamp timestamp) {
     }
 
     private static String handleLegacyDate(Date date) {
-        return date.toInstant()
+        return new java.util.Date(date.getTime()).toInstant()
             .atZone(SERVER_ZONE)
             .toLocalDate()
             .toString();