Github user Ben-Zvi commented on a diff in the pull request:
https://github.com/apache/drill/pull/800#discussion_r114036665
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/cache/VectorAccessibleSerializable.java
---
@@ -146,36 +157,24 @@ public void writeToStream(OutputStream output) throws
IOException {
final DrillBuf[] incomingBuffers = batch.getBuffers();
final UserBitShared.RecordBatchDef batchDef = batch.getDef();
- /* DrillBuf associated with the selection vector */
- DrillBuf svBuf = null;
- Integer svCount = null;
-
- if (svMode == BatchSchema.SelectionVectorMode.TWO_BYTE) {
- svCount = sv2.getCount();
- svBuf = sv2.getBuffer(); //this calls retain() internally
- }
-
try {
/* Write the metadata to the file */
batchDef.writeDelimitedTo(output);
/* If we have a selection vector, dump it to file first */
- if (svBuf != null) {
- allocator.write(svBuf, output);
- sv2.setBuffer(svBuf);
- svBuf.release(); // sv2 now owns the buffer
- sv2.setRecordCount(svCount);
+ if (svMode == BatchSchema.SelectionVectorMode.TWO_BYTE) {
+ recordCount = sv2.getCount();
--- End diff --
Ultra minor comment: When SV2 is read, the recordCount comes from the
batchDef; here it is taken from the sv2 itself (they should be the same anyway
....)
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