ptupitsyn commented on code in PR #3493:
URL: https://github.com/apache/ignite-3/pull/3493#discussion_r1541128121
##########
modules/binary-tuple/src/main/java/org/apache/ignite/internal/binarytuple/BinaryTupleBuilder.java:
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@@ -315,8 +320,34 @@ public BinaryTupleBuilder appendNumber(BigInteger value) {
* @return {@code this} for chaining.
*/
public BinaryTupleBuilder appendDecimalNotNull(BigDecimal value, int
scale) {
- // TODO IGNITE-21745: Inefficient serialization, many bytes wasted to
store small values when scale is big.
- putBytes(value.setScale(scale,
RoundingMode.HALF_UP).unscaledValue().toByteArray());
+ value = value.stripTrailingZeros();
+ int valScale = value.scale();
+
+ if (valScale < 0) {
+ value = value.setScale(0, RoundingMode.UNNECESSARY);
+ valScale = 0;
+ }
Review Comment:
Yes, this is wrong, not sure what I was thinking. As discussed in private,
I've removed varlen logic and now we store signed scale as 2 bytes (see
https://github.com/apache/ignite-3/blob/a7188adc70d6f3bf9189feba3b5c6878bd3a27ec/modules/catalog/src/main/java/org/apache/ignite/internal/catalog/commands/CatalogUtils.java#L113).
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