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bugfix: in long uniques don't check for duplicates more than once

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in particular, after checking for duplicates in a partitioned table,
do not re-check it for every partition individually
This commit is contained in:
Sergei Golubchik
2020-01-24 21:10:07 +01:00
parent 52d7980753
commit f3f31eaa8e
1 changed files with 1 additions and 1 deletions
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2
sql/handler.cc
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@ -6647,7 +6647,7 @@ int handler::ha_write_row(const uchar *buf)
mark_trx_read_write();
increment_statistics(&SSV::ha_write_count);
if (table->s->long_unique_table)
if (table->s->long_unique_table && this == table->file)
{
if (this->inited == RND)
table->clone_handler_for_update();