/*
* Take every XLogReadRecord()ed record and perform the actions required to
* decode it using the output plugin already setup in the logical decoding
* context.
*/
void
LogicalDecodingProcessRecord(LogicalDecodingContext *ctx, XLogReaderState *record)
{
XLogRecordBuffer buf;
buf.origptr = ctx->reader->ReadRecPtr;
buf.endptr = ctx->reader->EndRecPtr;
buf.record = record;
/* cast so we get a warning when new rmgrs are added */
switch ((RmgrIds) XLogRecGetRmid(record))
{
/*
* Rmgrs we care about for logical decoding. Add new rmgrs in
* rmgrlist.h's order.
*/
case RM_XLOG_ID:
DecodeXLogOp(ctx, &buf);
break;
case RM_XACT_ID:
DecodeXactOp(ctx, &buf);
break;
case RM_STANDBY_ID:
DecodeStandbyOp(ctx, &buf);
break;
case RM_HEAP2_ID:
DecodeHeap2Op(ctx, &buf);
break;
case RM_HEAP_ID:
DecodeHeapOp(ctx, &buf);
break;
/*
* Rmgrs irrelevant for logical decoding; they describe stuff not
* represented in logical decoding. Add new rmgrs in rmgrlist.h's
* order.
*/
case RM_SMGR_ID:
case RM_CLOG_ID:
case RM_DBASE_ID:
case RM_TBLSPC_ID:
case RM_MULTIXACT_ID:
case RM_RELMAP_ID:
case RM_BTREE_ID:
case RM_HASH_ID:
case RM_GIN_ID:
case RM_GIST_ID:
case RM_SEQ_ID:
case RM_SPGIST_ID:
case RM_BRIN_ID:
break;
case RM_NEXT_ID:
elog(ERROR, "unexpected RM_NEXT_ID rmgr_id: %u", (RmgrIds) XLogRecGetRmid(buf.record));
}
}
/*
* Take every XLogReadRecord()ed record and perform the actions required to
* decode it using the output plugin already setup in the logical decoding
* context.
*
* NB: Note that every record's xid needs to be processed by reorderbuffer
* (xids contained in the content of records are not relevant for this rule).
* That means that for records which'd otherwise not go through the
* reorderbuffer ReorderBufferProcessXid() has to be called. We don't want to
* call ReorderBufferProcessXid for each record type by default, because
* e.g. empty xacts can be handled more efficiently if there's no previous
* state for them.
*/
void
LogicalDecodingProcessRecord(LogicalDecodingContext *ctx, XLogRecord *record)
{
XLogRecordBuffer buf;
buf.origptr = ctx->reader->ReadRecPtr;
buf.endptr = ctx->reader->EndRecPtr;
buf.record = *record;
buf.record_data = XLogRecGetData(record);
/* cast so we get a warning when new rmgrs are added */
switch ((RmgrIds) buf.record.xl_rmid)
{
/*
* Rmgrs we care about for logical decoding. Add new rmgrs in
* rmgrlist.h's order.
*/
case RM_XLOG_ID:
DecodeXLogOp(ctx, &buf);
break;
case RM_XACT_ID:
DecodeXactOp(ctx, &buf);
break;
case RM_STANDBY_ID:
DecodeStandbyOp(ctx, &buf);
break;
case RM_HEAP2_ID:
DecodeHeap2Op(ctx, &buf);
break;
case RM_HEAP_ID:
DecodeHeapOp(ctx, &buf);
break;
/*
* Rmgrs irrelevant for logical decoding; they describe stuff not
* represented in logical decoding. Add new rmgrs in rmgrlist.h's
* order.
*/
case RM_SMGR_ID:
case RM_CLOG_ID:
case RM_DBASE_ID:
case RM_TBLSPC_ID:
case RM_MULTIXACT_ID:
case RM_RELMAP_ID:
case RM_BTREE_ID:
case RM_HASH_ID:
case RM_GIN_ID:
case RM_GIST_ID:
case RM_SEQ_ID:
case RM_SPGIST_ID:
case RM_BITMAP_ID:
case RM_DISTRIBUTEDLOG_ID:
/* just deal with xid, and done */
ReorderBufferProcessXid(ctx->reorder, record->xl_xid,
buf.origptr);
break;
case RM_APPEND_ONLY_ID:
/*
* GPDB_94_MERGE_FIXME: logical decoding hasn't been implemented for
* append-only tables yet.
*/
break;
case RM_NEXT_ID:
elog(ERROR, "unexpected RM_NEXT_ID rmgr_id: %u", (RmgrIds) buf.record.xl_rmid);
}
}
