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Remove duplicate code from ReorderBufferCleanupTXN().

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Andres is apparently the only hacker who thinks this code is better as-is.
I (tgl) follow some of his logic, but the fact that it's setting off
warnings from static code analyzers seems like a sufficient reason to
put the complexity into a comment rather than the code.

Aleksander Alekseev

Discussion: <20160404190345.54d84ee8@fujitsu>
This commit is contained in:
Tom Lane 2016-09-04 20:49:44 -04:00
parent c7f68bea22
commit b6182081be
1 changed files with 9 additions and 11 deletions
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20
src/backend/replication/logical/reorderbuffer.c
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@ -1158,17 +1158,15 @@ ReorderBufferCleanupTXN(ReorderBuffer *rb, ReorderBufferTXN *txn)
txn->base_snapshot_lsn = InvalidXLogRecPtr;
}
/* delete from list of known subxacts */
if (txn->is_known_as_subxact)
{
/* NB: nsubxacts count of parent will be too high now */
dlist_delete(&txn->node);
}
/* delete from LSN ordered list of toplevel TXNs */
else
{
dlist_delete(&txn->node);
}
/*
* Remove TXN from its containing list.
*
* Note: if txn->is_known_as_subxact, we are deleting the TXN from its
* parent's list of known subxacts; this leaves the parent's nsubxacts
* count too high, but we don't care. Otherwise, we are deleting the TXN
* from the LSN-ordered list of toplevel TXNs.
*/
dlist_delete(&txn->node);
/* now remove reference from buffer */
hash_search(rb->by_txn,