diff options
Diffstat (limited to 'src/backend/access/rmgrdesc/nbtdesc.c')
| -rw-r--r-- | src/backend/access/rmgrdesc/nbtdesc.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/src/backend/access/rmgrdesc/nbtdesc.c b/src/backend/access/rmgrdesc/nbtdesc.c new file mode 100644 index 0000000..710efbd --- /dev/null +++ b/src/backend/access/rmgrdesc/nbtdesc.c @@ -0,0 +1,178 @@ +/*------------------------------------------------------------------------- + * + * nbtdesc.c + * rmgr descriptor routines for access/nbtree/nbtxlog.c + * + * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * + * IDENTIFICATION + * src/backend/access/rmgrdesc/nbtdesc.c + * + *------------------------------------------------------------------------- + */ +#include "postgres.h" + +#include "access/nbtxlog.h" + +void +btree_desc(StringInfo buf, XLogReaderState *record) +{ + char *rec = XLogRecGetData(record); + uint8 info = XLogRecGetInfo(record) & ~XLR_INFO_MASK; + + switch (info) + { + case XLOG_BTREE_INSERT_LEAF: + case XLOG_BTREE_INSERT_UPPER: + case XLOG_BTREE_INSERT_META: + case XLOG_BTREE_INSERT_POST: + { + xl_btree_insert *xlrec = (xl_btree_insert *) rec; + + appendStringInfo(buf, "off %u", xlrec->offnum); + break; + } + case XLOG_BTREE_SPLIT_L: + case XLOG_BTREE_SPLIT_R: + { + xl_btree_split *xlrec = (xl_btree_split *) rec; + + appendStringInfo(buf, "level %u, firstrightoff %d, newitemoff %d, postingoff %d", + xlrec->level, xlrec->firstrightoff, + xlrec->newitemoff, xlrec->postingoff); + break; + } + case XLOG_BTREE_DEDUP: + { + xl_btree_dedup *xlrec = (xl_btree_dedup *) rec; + + appendStringInfo(buf, "nintervals %u", xlrec->nintervals); + break; + } + case XLOG_BTREE_VACUUM: + { + xl_btree_vacuum *xlrec = (xl_btree_vacuum *) rec; + + appendStringInfo(buf, "ndeleted %u; nupdated %u", + xlrec->ndeleted, xlrec->nupdated); + break; + } + case XLOG_BTREE_DELETE: + { + xl_btree_delete *xlrec = (xl_btree_delete *) rec; + + appendStringInfo(buf, "latestRemovedXid %u; ndeleted %u; nupdated %u", + xlrec->latestRemovedXid, xlrec->ndeleted, xlrec->nupdated); + break; + } + case XLOG_BTREE_MARK_PAGE_HALFDEAD: + { + xl_btree_mark_page_halfdead *xlrec = (xl_btree_mark_page_halfdead *) rec; + + appendStringInfo(buf, "topparent %u; leaf %u; left %u; right %u", + xlrec->topparent, xlrec->leafblk, xlrec->leftblk, xlrec->rightblk); + break; + } + case XLOG_BTREE_UNLINK_PAGE_META: + case XLOG_BTREE_UNLINK_PAGE: + { + xl_btree_unlink_page *xlrec = (xl_btree_unlink_page *) rec; + + appendStringInfo(buf, "left %u; right %u; level %u; safexid %u:%u; ", + xlrec->leftsib, xlrec->rightsib, xlrec->level, + EpochFromFullTransactionId(xlrec->safexid), + XidFromFullTransactionId(xlrec->safexid)); + appendStringInfo(buf, "leafleft %u; leafright %u; leaftopparent %u", + xlrec->leafleftsib, xlrec->leafrightsib, + xlrec->leaftopparent); + break; + } + case XLOG_BTREE_NEWROOT: + { + xl_btree_newroot *xlrec = (xl_btree_newroot *) rec; + + appendStringInfo(buf, "lev %u", xlrec->level); + break; + } + case XLOG_BTREE_REUSE_PAGE: + { + xl_btree_reuse_page *xlrec = (xl_btree_reuse_page *) rec; + + appendStringInfo(buf, "rel %u/%u/%u; latestRemovedXid %u:%u", + xlrec->node.spcNode, xlrec->node.dbNode, + xlrec->node.relNode, + EpochFromFullTransactionId(xlrec->latestRemovedFullXid), + XidFromFullTransactionId(xlrec->latestRemovedFullXid)); + break; + } + case XLOG_BTREE_META_CLEANUP: + { + xl_btree_metadata *xlrec; + + xlrec = (xl_btree_metadata *) XLogRecGetBlockData(record, 0, + NULL); + appendStringInfo(buf, "last_cleanup_num_delpages %u", + xlrec->last_cleanup_num_delpages); + break; + } + } +} + +const char * +btree_identify(uint8 info) +{ + const char *id = NULL; + + switch (info & ~XLR_INFO_MASK) + { + case XLOG_BTREE_INSERT_LEAF: + id = "INSERT_LEAF"; + break; + case XLOG_BTREE_INSERT_UPPER: + id = "INSERT_UPPER"; + break; + case XLOG_BTREE_INSERT_META: + id = "INSERT_META"; + break; + case XLOG_BTREE_SPLIT_L: + id = "SPLIT_L"; + break; + case XLOG_BTREE_SPLIT_R: + id = "SPLIT_R"; + break; + case XLOG_BTREE_INSERT_POST: + id = "INSERT_POST"; + break; + case XLOG_BTREE_DEDUP: + id = "DEDUP"; + break; + case XLOG_BTREE_VACUUM: + id = "VACUUM"; + break; + case XLOG_BTREE_DELETE: + id = "DELETE"; + break; + case XLOG_BTREE_MARK_PAGE_HALFDEAD: + id = "MARK_PAGE_HALFDEAD"; + break; + case XLOG_BTREE_UNLINK_PAGE: + id = "UNLINK_PAGE"; + break; + case XLOG_BTREE_UNLINK_PAGE_META: + id = "UNLINK_PAGE_META"; + break; + case XLOG_BTREE_NEWROOT: + id = "NEWROOT"; + break; + case XLOG_BTREE_REUSE_PAGE: + id = "REUSE_PAGE"; + break; + case XLOG_BTREE_META_CLEANUP: + id = "META_CLEANUP"; + break; + } + + return id; +} |