1 files changed, 83 insertions, 0 deletions
diff --git a/src/backend/access/rmgrdesc/gindesc.c b/src/backend/access/rmgrdesc/gindesc.c
new file mode 100644
index 00000000000..7ea36f28e10
--- /dev/null
+++ b/src/backend/access/rmgrdesc/gindesc.c
@@ -0,0 +1,83 @@
+/*-------------------------------------------------------------------------
+ *
+ * gindesc.c
+ *    rmgr descriptor routines for access/transam/gin/ginxlog.c
+ *
+ * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ *
+ * IDENTIFICATION
+ *    src/backend/access/rmgrdesc/gindesc.c
+ *
+ *-------------------------------------------------------------------------
+ */
+#include "postgres.h"
+
+#include "access/gin_private.h"
+#include "lib/stringinfo.h"
+#include "storage/relfilenode.h"
+
+static void
+desc_node(StringInfo buf, RelFileNode node, BlockNumber blkno)
+{
+	appendStringInfo(buf, "node: %u/%u/%u blkno: %u",
+					 node.spcNode, node.dbNode, node.relNode, blkno);
+}
+
+void
+gin_desc(StringInfo buf, uint8 xl_info, char *rec)
+{
+	uint8		info = xl_info & ~XLR_INFO_MASK;
+
+	switch (info)
+	{
+		case XLOG_GIN_CREATE_INDEX:
+			appendStringInfo(buf, "Create index, ");
+			desc_node(buf, *(RelFileNode *) rec, GIN_ROOT_BLKNO);
+			break;
+		case XLOG_GIN_CREATE_PTREE:
+			appendStringInfo(buf, "Create posting tree, ");
+			desc_node(buf, ((ginxlogCreatePostingTree *) rec)->node, ((ginxlogCreatePostingTree *) rec)->blkno);
+			break;
+		case XLOG_GIN_INSERT:
+			appendStringInfo(buf, "Insert item, ");
+			desc_node(buf, ((ginxlogInsert *) rec)->node, ((ginxlogInsert *) rec)->blkno);
+			appendStringInfo(buf, " offset: %u nitem: %u isdata: %c isleaf %c isdelete %c updateBlkno:%u",
+							 ((ginxlogInsert *) rec)->offset,
+							 ((ginxlogInsert *) rec)->nitem,
+							 (((ginxlogInsert *) rec)->isData) ? 'T' : 'F',
+							 (((ginxlogInsert *) rec)->isLeaf) ? 'T' : 'F',
+							 (((ginxlogInsert *) rec)->isDelete) ? 'T' : 'F',
+							 ((ginxlogInsert *) rec)->updateBlkno);
+			break;
+		case XLOG_GIN_SPLIT:
+			appendStringInfo(buf, "Page split, ");
+			desc_node(buf, ((ginxlogSplit *) rec)->node, ((ginxlogSplit *) rec)->lblkno);
+			appendStringInfo(buf, " isrootsplit: %c", (((ginxlogSplit *) rec)->isRootSplit) ? 'T' : 'F');
+			break;
+		case XLOG_GIN_VACUUM_PAGE:
+			appendStringInfo(buf, "Vacuum page, ");
+			desc_node(buf, ((ginxlogVacuumPage *) rec)->node, ((ginxlogVacuumPage *) rec)->blkno);
+			break;
+		case XLOG_GIN_DELETE_PAGE:
+			appendStringInfo(buf, "Delete page, ");
+			desc_node(buf, ((ginxlogDeletePage *) rec)->node, ((ginxlogDeletePage *) rec)->blkno);
+			break;
+		case XLOG_GIN_UPDATE_META_PAGE:
+			appendStringInfo(buf, "Update metapage, ");
+			desc_node(buf, ((ginxlogUpdateMeta *) rec)->node, GIN_METAPAGE_BLKNO);
+			break;
+		case XLOG_GIN_INSERT_LISTPAGE:
+			appendStringInfo(buf, "Insert new list page, ");
+			desc_node(buf, ((ginxlogInsertListPage *) rec)->node, ((ginxlogInsertListPage *) rec)->blkno);
+			break;
+		case XLOG_GIN_DELETE_LISTPAGE:
+			appendStringInfo(buf, "Delete list pages (%d), ", ((ginxlogDeleteListPages *) rec)->ndeleted);
+			desc_node(buf, ((ginxlogDeleteListPages *) rec)->node, GIN_METAPAGE_BLKNO);
+			break;
+		default:
+			appendStringInfo(buf, "unknown gin op code %u", info);
+			break;
+	}
+}