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-rw-r--r--src/backend/access/rmgrdesc/hashdesc.c172
1 files changed, 172 insertions, 0 deletions
diff --git a/src/backend/access/rmgrdesc/hashdesc.c b/src/backend/access/rmgrdesc/hashdesc.c
new file mode 100644
index 0000000..90ccea0
--- /dev/null
+++ b/src/backend/access/rmgrdesc/hashdesc.c
@@ -0,0 +1,172 @@
+/*-------------------------------------------------------------------------
+ *
+ * hashdesc.c
+ * rmgr descriptor routines for access/hash/hash.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/hashdesc.c
+ *
+ *-------------------------------------------------------------------------
+ */
+#include "postgres.h"
+
+#include "access/hash_xlog.h"
+
+void
+hash_desc(StringInfo buf, XLogReaderState *record)
+{
+ char *rec = XLogRecGetData(record);
+ uint8 info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
+
+ switch (info)
+ {
+ case XLOG_HASH_INIT_META_PAGE:
+ {
+ xl_hash_init_meta_page *xlrec = (xl_hash_init_meta_page *) rec;
+
+ appendStringInfo(buf, "num_tuples %g, fillfactor %d",
+ xlrec->num_tuples, xlrec->ffactor);
+ break;
+ }
+ case XLOG_HASH_INIT_BITMAP_PAGE:
+ {
+ xl_hash_init_bitmap_page *xlrec = (xl_hash_init_bitmap_page *) rec;
+
+ appendStringInfo(buf, "bmsize %d", xlrec->bmsize);
+ break;
+ }
+ case XLOG_HASH_INSERT:
+ {
+ xl_hash_insert *xlrec = (xl_hash_insert *) rec;
+
+ appendStringInfo(buf, "off %u", xlrec->offnum);
+ break;
+ }
+ case XLOG_HASH_ADD_OVFL_PAGE:
+ {
+ xl_hash_add_ovfl_page *xlrec = (xl_hash_add_ovfl_page *) rec;
+
+ appendStringInfo(buf, "bmsize %d, bmpage_found %c",
+ xlrec->bmsize, (xlrec->bmpage_found) ? 'T' : 'F');
+ break;
+ }
+ case XLOG_HASH_SPLIT_ALLOCATE_PAGE:
+ {
+ xl_hash_split_allocate_page *xlrec = (xl_hash_split_allocate_page *) rec;
+
+ appendStringInfo(buf, "new_bucket %u, meta_page_masks_updated %c, issplitpoint_changed %c",
+ xlrec->new_bucket,
+ (xlrec->flags & XLH_SPLIT_META_UPDATE_MASKS) ? 'T' : 'F',
+ (xlrec->flags & XLH_SPLIT_META_UPDATE_SPLITPOINT) ? 'T' : 'F');
+ break;
+ }
+ case XLOG_HASH_SPLIT_COMPLETE:
+ {
+ xl_hash_split_complete *xlrec = (xl_hash_split_complete *) rec;
+
+ appendStringInfo(buf, "old_bucket_flag %u, new_bucket_flag %u",
+ xlrec->old_bucket_flag, xlrec->new_bucket_flag);
+ break;
+ }
+ case XLOG_HASH_MOVE_PAGE_CONTENTS:
+ {
+ xl_hash_move_page_contents *xlrec = (xl_hash_move_page_contents *) rec;
+
+ appendStringInfo(buf, "ntups %d, is_primary %c",
+ xlrec->ntups,
+ xlrec->is_prim_bucket_same_wrt ? 'T' : 'F');
+ break;
+ }
+ case XLOG_HASH_SQUEEZE_PAGE:
+ {
+ xl_hash_squeeze_page *xlrec = (xl_hash_squeeze_page *) rec;
+
+ appendStringInfo(buf, "prevblkno %u, nextblkno %u, ntups %d, is_primary %c",
+ xlrec->prevblkno,
+ xlrec->nextblkno,
+ xlrec->ntups,
+ xlrec->is_prim_bucket_same_wrt ? 'T' : 'F');
+ break;
+ }
+ case XLOG_HASH_DELETE:
+ {
+ xl_hash_delete *xlrec = (xl_hash_delete *) rec;
+
+ appendStringInfo(buf, "clear_dead_marking %c, is_primary %c",
+ xlrec->clear_dead_marking ? 'T' : 'F',
+ xlrec->is_primary_bucket_page ? 'T' : 'F');
+ break;
+ }
+ case XLOG_HASH_UPDATE_META_PAGE:
+ {
+ xl_hash_update_meta_page *xlrec = (xl_hash_update_meta_page *) rec;
+
+ appendStringInfo(buf, "ntuples %g",
+ xlrec->ntuples);
+ break;
+ }
+ case XLOG_HASH_VACUUM_ONE_PAGE:
+ {
+ xl_hash_vacuum_one_page *xlrec = (xl_hash_vacuum_one_page *) rec;
+
+ appendStringInfo(buf, "ntuples %d, latestRemovedXid %u",
+ xlrec->ntuples,
+ xlrec->latestRemovedXid);
+ break;
+ }
+ }
+}
+
+const char *
+hash_identify(uint8 info)
+{
+ const char *id = NULL;
+
+ switch (info & ~XLR_INFO_MASK)
+ {
+ case XLOG_HASH_INIT_META_PAGE:
+ id = "INIT_META_PAGE";
+ break;
+ case XLOG_HASH_INIT_BITMAP_PAGE:
+ id = "INIT_BITMAP_PAGE";
+ break;
+ case XLOG_HASH_INSERT:
+ id = "INSERT";
+ break;
+ case XLOG_HASH_ADD_OVFL_PAGE:
+ id = "ADD_OVFL_PAGE";
+ break;
+ case XLOG_HASH_SPLIT_ALLOCATE_PAGE:
+ id = "SPLIT_ALLOCATE_PAGE";
+ break;
+ case XLOG_HASH_SPLIT_PAGE:
+ id = "SPLIT_PAGE";
+ break;
+ case XLOG_HASH_SPLIT_COMPLETE:
+ id = "SPLIT_COMPLETE";
+ break;
+ case XLOG_HASH_MOVE_PAGE_CONTENTS:
+ id = "MOVE_PAGE_CONTENTS";
+ break;
+ case XLOG_HASH_SQUEEZE_PAGE:
+ id = "SQUEEZE_PAGE";
+ break;
+ case XLOG_HASH_DELETE:
+ id = "DELETE";
+ break;
+ case XLOG_HASH_SPLIT_CLEANUP:
+ id = "SPLIT_CLEANUP";
+ break;
+ case XLOG_HASH_UPDATE_META_PAGE:
+ id = "UPDATE_META_PAGE";
+ break;
+ case XLOG_HASH_VACUUM_ONE_PAGE:
+ id = "VACUUM_ONE_PAGE";
+ }
+
+ return id;
+}