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Remove dedicated B-tree root-split record types.

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Since commit 40dae7ec53, which changed the way b-tree page splitting
works, there has been no difference in the handling of root, and non-root
split WAL records. We don't need to distinguish them anymore

If you're worried about the loss of debugging information, note that
usually a root split record will normally be followed by a WAL record to
create the new root page. The root page will also have the BTP_ROOT flag
set on the page itself, and there is a pointer to it from the metapage.

Author: Aleksander Alekseev
Discussion: https://www.postgresql.org/message-id/20170406122116.GA11081@e733.localdomain
This commit is contained in:
Heikki Linnakangas
2017-08-16 12:16:18 +03:00
parent 77d05706be
commit 0c504a80cf
4 changed files with 5 additions and 26 deletions
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8
src/backend/access/rmgrdesc/nbtdesc.c
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@@ -35,8 +35,6 @@ btree_desc(StringInfo buf, XLogReaderState *record)
}
case XLOG_BTREE_SPLIT_L:
case XLOG_BTREE_SPLIT_R:
case XLOG_BTREE_SPLIT_L_ROOT:
case XLOG_BTREE_SPLIT_R_ROOT:
{
xl_btree_split *xlrec = (xl_btree_split *) rec;
@@ -121,12 +119,6 @@ btree_identify(uint8 info)
case XLOG_BTREE_SPLIT_R:
id = "SPLIT_R";
break;
case XLOG_BTREE_SPLIT_L_ROOT:
id = "SPLIT_L_ROOT";
break;
case XLOG_BTREE_SPLIT_R_ROOT:
id = "SPLIT_R_ROOT";
break;
case XLOG_BTREE_VACUUM:
id = "VACUUM";
break;