rdblue commented on code in PR #9008:
URL: https://github.com/apache/iceberg/pull/9008#discussion_r1520435413
##########
api/src/test/java/org/apache/iceberg/expressions/TestStringLiteralConversions.java:
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@@ -132,6 +132,38 @@ public void testStringToTimestampLiteral() {
.isEqualTo(avroValue);
}
+ @Test
+ public void
testStringToTimestampLiteralWithMicrosecondPrecisionFromNanoseconds() {
+ // use Avro's timestamp conversion to validate the result
+ Schema avroSchema =
LogicalTypes.timestampMicros().addToSchema(Schema.create(Schema.Type.LONG));
+ TimeConversions.TimestampMicrosConversion avroConversion =
+ new TimeConversions.TimestampMicrosConversion();
+
+ Literal<CharSequence> timestampStr =
Literal.of("2017-08-18T14:21:01.123456789");
+ Literal<Long> timestamp =
timestampStr.to(Types.TimestampType.microsWithoutZone());
+ long avroValue =
+ avroConversion.toLong(
+ LocalDateTime.of(2017, 8, 18, 14, 21, 1,
123456000).toInstant(ZoneOffset.UTC),
+ avroSchema,
+ avroSchema.getLogicalType());
+
+ assertThat((long) timestamp.value())
+ .as("Timestamp without zone should match UTC")
+ .isEqualTo(avroValue);
+ }
+
+ @Test
+ public void
testStringToTimestampLiteralWithNanosecondPrecisionFromNanoseconds() {
+ // Not using Avro's timestamp conversion as it has no timestampNanos().
+ long expected = 1503066061123456789L;
Review Comment:
Test that Avro produces a value within 1 micro of this
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