amrishlal commented on a change in pull request #6719:
URL: https://github.com/apache/incubator-pinot/pull/6719#discussion_r612097435



##########
File path: 
pinot-common/src/main/java/org/apache/pinot/common/utils/PinotDataType.java
##########
@@ -775,6 +969,18 @@ public static PinotDataType 
getPinotDataTypeForIngestion(FieldSpec fieldSpec) {
         return fieldSpec.isSingleValueField() ? PinotDataType.FLOAT : 
PinotDataType.FLOAT_ARRAY;
       case DOUBLE:
         return fieldSpec.isSingleValueField() ? PinotDataType.DOUBLE : 
PinotDataType.DOUBLE_ARRAY;
+      case BOOLEAN:
+        if (fieldSpec.isSingleValueField()) {
+          return PinotDataType.BOOLEAN;
+        } else {
+          throw new IllegalStateException("There is no multi-value type for 
BOOLEAN");

Review comment:
       Any specific reason why no multi-value support for BOOLEAN? Boolean is a 
primitive type just like Numerical types?

##########
File path: 
pinot-common/src/main/java/org/apache/pinot/common/utils/PinotDataType.java
##########
@@ -775,6 +969,18 @@ public static PinotDataType 
getPinotDataTypeForIngestion(FieldSpec fieldSpec) {
         return fieldSpec.isSingleValueField() ? PinotDataType.FLOAT : 
PinotDataType.FLOAT_ARRAY;
       case DOUBLE:
         return fieldSpec.isSingleValueField() ? PinotDataType.DOUBLE : 
PinotDataType.DOUBLE_ARRAY;
+      case BOOLEAN:
+        if (fieldSpec.isSingleValueField()) {
+          return PinotDataType.BOOLEAN;
+        } else {
+          throw new IllegalStateException("There is no multi-value type for 
BOOLEAN");
+        }
+      case TIMESTAMP:
+        if (fieldSpec.isSingleValueField()) {
+          return PinotDataType.TIMESTAMP;
+        } else {
+          throw new IllegalStateException("There is no multi-value type for 
TIMESTAMP");

Review comment:
       Same with Timestamp, would like to see multi-valued support here as well 
unless there is a very specific reason not to do so?

##########
File path: 
pinot-common/src/test/java/org/apache/pinot/common/data/DateTimeFormatSpecTest.java
##########
@@ -82,6 +86,8 @@ public void testFromMillisToFormat(String format, long 
timeMs, String expectedFo
     entries.add(new Object[]{"1:MILLISECONDS:EPOCH", 1498892400000L, 
"1498892400000"});
     entries.add(new Object[]{"1:HOURS:EPOCH", 0L, "0"});
     entries.add(new Object[]{"5:MINUTES:EPOCH", 1498892400000L, "4996308"});
+    entries.add(new Object[]{"1:MILLISECONDS:TIMESTAMP", Timestamp

Review comment:
       Would be good to see a test case for `1:NANOSECONDS:TIMESTAMP` specially 
since Pinot supports `NANOSECONDS` and `java.sql.Timestamp` seems to require a 
separate call to `java.sql.Timestamp.setNanos(...)` to set nanoseconds in 
timestamp.




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