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!531 【轻量级 PR】：索引可见性判断：使用csn判断大小前判断csn是否已提交

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Merge pull request !531 from TotaJ/N/A
This commit is contained in:
opengauss-bot
2020-12-22 08:57:33 +08:00
committed by Gitee
parent 68496c0862 ecc577094f
commit 694254cc18
1 changed files with 2 additions and 2 deletions
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4
src/gausskernel/optimizer/util/plancat.cpp
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@ -258,8 +258,8 @@ void get_relation_info(PlannerInfo* root, Oid relationObjectId, bool inhparent,
* Since the TransactionXmin won't advance immediately(see CalculateLocalLatestSnapshot),
* we need to check CSN for the visibility.
*/
CommitSeqNo csn = TransactionIdGetCommitSeqNo(xmin, true, true, false);
if (csn >= u_sess->utils_cxt.CurrentSnapshot->snapshotcsn) {
CommitSeqNo csn = TransactionIdGetCommitSeqNo(xmin, false, true, false);
if (!COMMITSEQNO_IS_COMMITTED(csn) || csn >= u_sess->utils_cxt.CurrentSnapshot->snapshotcsn) {
root->glob->transientPlan = true;
index_close(indexRelation, NoLock);
continue;