JingsongLi commented on a change in pull request #10212:
[FLINK-14806][table-planner-blink] Add setTimestamp/getTimestamp inte…
URL: https://github.com/apache/flink/pull/10212#discussion_r347332620
##########
File path:
flink-table/flink-table-runtime-blink/src/main/java/org/apache/flink/table/dataformat/vector/VectorizedColumnBatch.java
##########
@@ -132,4 +136,48 @@ public Decimal getDecimal(int rowId, int colId, int
precision, int scale) {
return Decimal.fromUnscaledBytes(precision, scale,
bytes);
}
}
+
+ public SqlTimestamp getTimestamp(int rowId, int colId, int precision) {
+ if (isNullAt(rowId, colId)) {
+ return null;
+ }
+
+ // The precision of Timestamp in parquet should be one of
MILLIS, MICROS or NANOS.
+ //
https://github.com/apache/parquet-format/blob/master/LogicalTypes.md#timestamp
+ //
+ // For MILLIS, the underlying INT64 holds milliseconds
+ // For MICROS, the underlying INT64 holds microseconds
+ // For NANOS, the underlying INT96 holds nanoOfDay(8 bytes) and
julianDay(4 bytes)
+ if (columns[colId] instanceof TimestampColumnVector) {
+ return ((TimestampColumnVector)
(columns[colId])).getTimestamp(rowId, precision);
+ } else if (precision <= 3) {
+ return SqlTimestamp.fromEpochMillis(getLong(rowId,
colId));
+ } else if (precision <= 6) {
+ long microseconds = getLong(rowId, colId);
+ return SqlTimestamp.fromEpochMillis(
+ microseconds / 1000, (int) (microseconds %
1000) * 1000);
+ } else {
+ byte[] bytes = getBytes(rowId, colId);
+ assert bytes.length == 12;
+ long l = 0;
+ for (int i = 0; i < 8; i++) {
+ l <<= 8;
+ l |= (bytes[i] & (0xff));
+ }
+ int n = 0;
+ for (int i = 8; i < 12; i++) {
+ n <<= 8;
+ n |= (bytes[i] & (0xff));
+ }
+ LocalTime localTime = LocalTime.ofNanoOfDay(l);
Review comment:
Why use `LocalTime`?
We just need get millseconds from `nanoseconds`.
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