logicalproto.h File Reference

#include "replication/reorderbuffer.h"
#include "utils/rel.h"

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Data Structures
struct	LogicalRepTupleData
struct	LogicalRepRelation
struct	LogicalRepTyp
struct	LogicalRepBeginData
struct	LogicalRepCommitData

Macros
#define	LOGICALREP_PROTO_MIN_VERSION_NUM   1
#define	LOGICALREP_PROTO_VERSION_NUM   1
#define	LOGICALREP_PROTO_STREAM_VERSION_NUM   2
#define	LOGICALREP_PROTO_MAX_VERSION_NUM   LOGICALREP_PROTO_STREAM_VERSION_NUM
#define	LOGICALREP_COLUMN_NULL   'n'
#define	LOGICALREP_COLUMN_UNCHANGED   'u'
#define	LOGICALREP_COLUMN_TEXT   't'
#define	LOGICALREP_COLUMN_BINARY   'b' /* added in PG14 */

Typedefs
typedef enum LogicalRepMsgType	LogicalRepMsgType
typedef struct LogicalRepTupleData	LogicalRepTupleData
typedef uint32	LogicalRepRelId
typedef struct LogicalRepRelation	LogicalRepRelation
typedef struct LogicalRepTyp	LogicalRepTyp
typedef struct LogicalRepBeginData	LogicalRepBeginData
typedef struct LogicalRepCommitData	LogicalRepCommitData

Enumerations
enum	LogicalRepMsgType {   LOGICAL_REP_MSG_BEGIN = 'B', LOGICAL_REP_MSG_COMMIT = 'C', LOGICAL_REP_MSG_ORIGIN = 'O', LOGICAL_REP_MSG_INSERT = 'I',   LOGICAL_REP_MSG_UPDATE = 'U', LOGICAL_REP_MSG_DELETE = 'D', LOGICAL_REP_MSG_TRUNCATE = 'T', LOGICAL_REP_MSG_RELATION = 'R',   LOGICAL_REP_MSG_TYPE = 'Y', LOGICAL_REP_MSG_STREAM_START = 'S', LOGICAL_REP_MSG_STREAM_END = 'E', LOGICAL_REP_MSG_STREAM_COMMIT = 'c',   LOGICAL_REP_MSG_STREAM_ABORT = 'A' }

Functions
void	logicalrep_write_begin (StringInfo out, ReorderBufferTXN *txn)
void	logicalrep_read_begin (StringInfo in, LogicalRepBeginData *begin_data)
void	logicalrep_write_commit (StringInfo out, ReorderBufferTXN *txn, XLogRecPtr commit_lsn)
void	logicalrep_read_commit (StringInfo in, LogicalRepCommitData *commit_data)
void	logicalrep_write_origin (StringInfo out, const char *origin, XLogRecPtr origin_lsn)
char *	logicalrep_read_origin (StringInfo in, XLogRecPtr *origin_lsn)
void	logicalrep_write_insert (StringInfo out, TransactionId xid, Relation rel, HeapTuple newtuple, bool binary)
LogicalRepRelId	logicalrep_read_insert (StringInfo in, LogicalRepTupleData *newtup)
void	logicalrep_write_update (StringInfo out, TransactionId xid, Relation rel, HeapTuple oldtuple, HeapTuple newtuple, bool binary)
LogicalRepRelId	logicalrep_read_update (StringInfo in, bool *has_oldtuple, LogicalRepTupleData *oldtup, LogicalRepTupleData *newtup)
void	logicalrep_write_delete (StringInfo out, TransactionId xid, Relation rel, HeapTuple oldtuple, bool binary)
LogicalRepRelId	logicalrep_read_delete (StringInfo in, LogicalRepTupleData *oldtup)
void	logicalrep_write_truncate (StringInfo out, TransactionId xid, int nrelids, Oid relids[], bool cascade, bool restart_seqs)
List *	logicalrep_read_truncate (StringInfo in, bool *cascade, bool *restart_seqs)
void	logicalrep_write_rel (StringInfo out, TransactionId xid, Relation rel)
LogicalRepRelation *	logicalrep_read_rel (StringInfo in)
void	logicalrep_write_typ (StringInfo out, TransactionId xid, Oid typoid)
void	logicalrep_read_typ (StringInfo out, LogicalRepTyp *ltyp)
void	logicalrep_write_stream_start (StringInfo out, TransactionId xid, bool first_segment)
TransactionId	logicalrep_read_stream_start (StringInfo in, bool *first_segment)
void	logicalrep_write_stream_stop (StringInfo out)
void	logicalrep_write_stream_commit (StringInfo out, ReorderBufferTXN *txn, XLogRecPtr commit_lsn)
TransactionId	logicalrep_read_stream_commit (StringInfo out, LogicalRepCommitData *commit_data)
void	logicalrep_write_stream_abort (StringInfo out, TransactionId xid, TransactionId subxid)
void	logicalrep_read_stream_abort (StringInfo in, TransactionId *xid, TransactionId *subxid)

Macro Definition Documentation

LOGICALREP_COLUMN_BINARY

#define LOGICALREP_COLUMN_BINARY   'b' /* added in PG14 */

Definition at line 82 of file logicalproto.h.

Referenced by logicalrep_read_tuple(), logicalrep_write_tuple(), slot_modify_data(), and slot_store_data().

LOGICALREP_COLUMN_NULL

#define LOGICALREP_COLUMN_NULL   'n'

Definition at line 79 of file logicalproto.h.

Referenced by logicalrep_read_tuple(), and logicalrep_write_tuple().

LOGICALREP_COLUMN_TEXT

#define LOGICALREP_COLUMN_TEXT   't'

Definition at line 81 of file logicalproto.h.

Referenced by logicalrep_read_tuple(), logicalrep_write_tuple(), slot_modify_data(), and slot_store_data().

LOGICALREP_COLUMN_UNCHANGED

#define LOGICALREP_COLUMN_UNCHANGED   'u'

Definition at line 80 of file logicalproto.h.

Referenced by apply_handle_update(), logicalrep_read_tuple(), logicalrep_write_tuple(), and slot_modify_data().

LOGICALREP_PROTO_MAX_VERSION_NUM

#define LOGICALREP_PROTO_MAX_VERSION_NUM   LOGICALREP_PROTO_STREAM_VERSION_NUM

Definition at line 34 of file logicalproto.h.

Referenced by pgoutput_startup().

LOGICALREP_PROTO_MIN_VERSION_NUM

#define LOGICALREP_PROTO_MIN_VERSION_NUM   1

Definition at line 31 of file logicalproto.h.

Referenced by pgoutput_startup().

LOGICALREP_PROTO_STREAM_VERSION_NUM

#define LOGICALREP_PROTO_STREAM_VERSION_NUM   2

Definition at line 33 of file logicalproto.h.

Referenced by ApplyWorkerMain(), and pgoutput_startup().

LOGICALREP_PROTO_VERSION_NUM

#define LOGICALREP_PROTO_VERSION_NUM   1

Definition at line 32 of file logicalproto.h.

Referenced by ApplyWorkerMain().

Typedef Documentation

LogicalRepBeginData

typedef struct LogicalRepBeginData LogicalRepBeginData

LogicalRepCommitData

typedef struct LogicalRepCommitData LogicalRepCommitData

LogicalRepMsgType

typedef enum LogicalRepMsgType LogicalRepMsgType

LogicalRepRelation

typedef struct LogicalRepRelation LogicalRepRelation

LogicalRepRelId

typedef uint32 LogicalRepRelId

Definition at line 84 of file logicalproto.h.

LogicalRepTupleData

typedef struct LogicalRepTupleData LogicalRepTupleData

LogicalRepTyp

typedef struct LogicalRepTyp LogicalRepTyp

Enumeration Type Documentation

LogicalRepMsgType

enum LogicalRepMsgType

Enumerator
LOGICAL_REP_MSG_BEGIN
LOGICAL_REP_MSG_COMMIT
LOGICAL_REP_MSG_ORIGIN
LOGICAL_REP_MSG_INSERT
LOGICAL_REP_MSG_UPDATE
LOGICAL_REP_MSG_DELETE
LOGICAL_REP_MSG_TRUNCATE
LOGICAL_REP_MSG_RELATION
LOGICAL_REP_MSG_TYPE
LOGICAL_REP_MSG_STREAM_START
LOGICAL_REP_MSG_STREAM_END
LOGICAL_REP_MSG_STREAM_COMMIT
LOGICAL_REP_MSG_STREAM_ABORT

Definition at line 46 of file logicalproto.h.

{
    LOGICAL_REP_MSG_BEGIN = 'B',
    LOGICAL_REP_MSG_COMMIT = 'C',
    LOGICAL_REP_MSG_ORIGIN = 'O',
    LOGICAL_REP_MSG_INSERT = 'I',
    LOGICAL_REP_MSG_UPDATE = 'U',
    LOGICAL_REP_MSG_DELETE = 'D',
    LOGICAL_REP_MSG_TRUNCATE = 'T',
    LOGICAL_REP_MSG_RELATION = 'R',
    LOGICAL_REP_MSG_TYPE = 'Y',
    LOGICAL_REP_MSG_STREAM_START = 'S',
    LOGICAL_REP_MSG_STREAM_END = 'E',
    LOGICAL_REP_MSG_STREAM_COMMIT = 'c',
    LOGICAL_REP_MSG_STREAM_ABORT = 'A'
} LogicalRepMsgType;

Function Documentation

logicalrep_read_begin()

void logicalrep_read_begin	(	StringInfo	in,
		LogicalRepBeginData *	begin_data
	)

Definition at line 59 of file proto.c.

References LogicalRepBeginData::committime, elog, ERROR, LogicalRepBeginData::final_lsn, InvalidXLogRecPtr, pq_getmsgint(), pq_getmsgint64(), and LogicalRepBeginData::xid.

Referenced by apply_handle_begin().

{
    /* read fields */
    begin_data->final_lsn = pq_getmsgint64(in);
    if (begin_data->final_lsn == InvalidXLogRecPtr)
        elog(ERROR, "final_lsn not set in begin message");
    begin_data->committime = pq_getmsgint64(in);
    begin_data->xid = pq_getmsgint(in, 4);
}

logicalrep_read_commit()

void logicalrep_read_commit	(	StringInfo	in,
		LogicalRepCommitData *	commit_data
	)

Definition at line 94 of file proto.c.

References LogicalRepCommitData::commit_lsn, LogicalRepCommitData::committime, elog, LogicalRepCommitData::end_lsn, ERROR, pq_getmsgbyte(), and pq_getmsgint64().

Referenced by apply_handle_commit().

{
    /* read flags (unused for now) */
    uint8       flags = pq_getmsgbyte(in);

    if (flags != 0)
        elog(ERROR, "unrecognized flags %u in commit message", flags);

    /* read fields */
    commit_data->commit_lsn = pq_getmsgint64(in);
    commit_data->end_lsn = pq_getmsgint64(in);
    commit_data->committime = pq_getmsgint64(in);
}

logicalrep_read_delete()

LogicalRepRelId logicalrep_read_delete	(	StringInfo	in,
		LogicalRepTupleData *	oldtup
	)

Definition at line 289 of file proto.c.

References generate_unaccent_rules::action, elog, ERROR, logicalrep_read_tuple(), pq_getmsgbyte(), and pq_getmsgint().

Referenced by apply_handle_delete().

{
    char        action;
    LogicalRepRelId relid;

    /* read the relation id */
    relid = pq_getmsgint(in, 4);

    /* read and verify action */
    action = pq_getmsgbyte(in);
    if (action != 'K' && action != 'O')
        elog(ERROR, "expected action 'O' or 'K', got %c", action);

    logicalrep_read_tuple(in, oldtup);

    return relid;
}

logicalrep_read_insert()

LogicalRepRelId logicalrep_read_insert	(	StringInfo	in,
		LogicalRepTupleData *	newtup
	)

Definition at line 163 of file proto.c.

References generate_unaccent_rules::action, elog, ERROR, logicalrep_read_tuple(), pq_getmsgbyte(), and pq_getmsgint().

Referenced by apply_handle_insert().

{
    char        action;
    LogicalRepRelId relid;

    /* read the relation id */
    relid = pq_getmsgint(in, 4);

    action = pq_getmsgbyte(in);
    if (action != 'N')
        elog(ERROR, "expected new tuple but got %d",
             action);

    logicalrep_read_tuple(in, newtup);

    return relid;
}

logicalrep_read_origin()

char* logicalrep_read_origin	(	StringInfo	in,
		XLogRecPtr *	origin_lsn
	)

Definition at line 128 of file proto.c.

References pq_getmsgint64(), pq_getmsgstring(), and pstrdup().

{
    /* fixed fields */
    *origin_lsn = pq_getmsgint64(in);

    /* return origin */
    return pstrdup(pq_getmsgstring(in));
}

logicalrep_read_rel()

LogicalRepRelation* logicalrep_read_rel

(

StringInfo

in

)

Definition at line 397 of file proto.c.

References logicalrep_read_attrs(), logicalrep_read_namespace(), LogicalRepRelation::nspname, palloc(), pq_getmsgbyte(), pq_getmsgint(), pq_getmsgstring(), pstrdup(), LogicalRepRelation::relname, LogicalRepRelation::remoteid, and LogicalRepRelation::replident.

Referenced by apply_handle_relation().

{
    LogicalRepRelation *rel = palloc(sizeof(LogicalRepRelation));

    rel->remoteid = pq_getmsgint(in, 4);

    /* Read relation name from stream */
    rel->nspname = pstrdup(logicalrep_read_namespace(in));
    rel->relname = pstrdup(pq_getmsgstring(in));

    /* Read the replica identity. */
    rel->replident = pq_getmsgbyte(in);

    /* Get attribute description */
    logicalrep_read_attrs(in, rel);

    return rel;
}

logicalrep_read_stream_abort()

void logicalrep_read_stream_abort	(	StringInfo	in,
		TransactionId *	xid,
		TransactionId *	subxid
	)

Definition at line 866 of file proto.c.

References Assert, and pq_getmsgint().

Referenced by apply_handle_stream_abort().

{
    Assert(xid && subxid);

    *xid = pq_getmsgint(in, 4);
    *subxid = pq_getmsgint(in, 4);
}

logicalrep_read_stream_commit()

TransactionId logicalrep_read_stream_commit	(	StringInfo	out,
		LogicalRepCommitData *	commit_data
	)

Definition at line 824 of file proto.c.

References LogicalRepCommitData::commit_lsn, LogicalRepCommitData::committime, elog, LogicalRepCommitData::end_lsn, ERROR, pq_getmsgbyte(), pq_getmsgint(), and pq_getmsgint64().

Referenced by apply_handle_stream_commit().

{
    TransactionId xid;
    uint8       flags;

    xid = pq_getmsgint(in, 4);

    /* read flags (unused for now) */
    flags = pq_getmsgbyte(in);

    if (flags != 0)
        elog(ERROR, "unrecognized flags %u in commit message", flags);

    /* read fields */
    commit_data->commit_lsn = pq_getmsgint64(in);
    commit_data->end_lsn = pq_getmsgint64(in);
    commit_data->committime = pq_getmsgint64(in);

    return xid;
}

logicalrep_read_stream_start()

TransactionId logicalrep_read_stream_start	(	StringInfo	in,
		bool *	first_segment
	)

Definition at line 774 of file proto.c.

References Assert, pq_getmsgbyte(), and pq_getmsgint().

Referenced by apply_handle_stream_start().

{
    TransactionId xid;

    Assert(first_segment);

    xid = pq_getmsgint(in, 4);
    *first_segment = (pq_getmsgbyte(in) == 1);

    return xid;
}

logicalrep_read_truncate()

List* logicalrep_read_truncate	(	StringInfo	in,
		bool *	cascade,
		bool *	restart_seqs
	)

Definition at line 343 of file proto.c.

References i, lappend_oid(), NIL, pq_getmsgint(), TRUNCATE_CASCADE, and TRUNCATE_RESTART_SEQS.

Referenced by apply_handle_truncate().

{
    int         i;
    int         nrelids;
    List       *relids = NIL;
    uint8       flags;

    nrelids = pq_getmsgint(in, 4);

    /* read and decode truncate flags */
    flags = pq_getmsgint(in, 1);
    *cascade = (flags & TRUNCATE_CASCADE) > 0;
    *restart_seqs = (flags & TRUNCATE_RESTART_SEQS) > 0;

    for (i = 0; i < nrelids; i++)
        relids = lappend_oid(relids, pq_getmsgint(in, 4));

    return relids;
}

logicalrep_read_typ()

void logicalrep_read_typ	(	StringInfo	out,
		LogicalRepTyp *	ltyp
	)

Definition at line 453 of file proto.c.

References logicalrep_read_namespace(), LogicalRepTyp::nspname, pq_getmsgint(), pq_getmsgstring(), pstrdup(), LogicalRepTyp::remoteid, and LogicalRepTyp::typname.

Referenced by apply_handle_type().

{
    ltyp->remoteid = pq_getmsgint(in, 4);

    /* Read type name from stream */
    ltyp->nspname = pstrdup(logicalrep_read_namespace(in));
    ltyp->typname = pstrdup(pq_getmsgstring(in));
}

logicalrep_read_update()

LogicalRepRelId logicalrep_read_update	(	StringInfo	in,
		bool *	has_oldtuple,
		LogicalRepTupleData *	oldtup,
		LogicalRepTupleData *	newtup
	)

Definition at line 218 of file proto.c.

References generate_unaccent_rules::action, elog, ERROR, logicalrep_read_tuple(), pq_getmsgbyte(), and pq_getmsgint().

Referenced by apply_handle_update().

{
    char        action;
    LogicalRepRelId relid;

    /* read the relation id */
    relid = pq_getmsgint(in, 4);

    /* read and verify action */
    action = pq_getmsgbyte(in);
    if (action != 'K' && action != 'O' && action != 'N')
        elog(ERROR, "expected action 'N', 'O' or 'K', got %c",
             action);

    /* check for old tuple */
    if (action == 'K' || action == 'O')
    {
        logicalrep_read_tuple(in, oldtup);
        *has_oldtuple = true;

        action = pq_getmsgbyte(in);
    }
    else
        *has_oldtuple = false;

    /* check for new  tuple */
    if (action != 'N')
        elog(ERROR, "expected action 'N', got %c",
             action);

    logicalrep_read_tuple(in, newtup);

    return relid;
}

logicalrep_write_begin()

void logicalrep_write_begin	(	StringInfo	out,
		ReorderBufferTXN *	txn
	)

Definition at line 45 of file proto.c.

References ReorderBufferTXN::commit_time, ReorderBufferTXN::final_lsn, LOGICAL_REP_MSG_BEGIN, pq_sendbyte(), pq_sendint32(), pq_sendint64(), and ReorderBufferTXN::xid.

Referenced by pgoutput_begin_txn().

{
    pq_sendbyte(out, LOGICAL_REP_MSG_BEGIN);

    /* fixed fields */
    pq_sendint64(out, txn->final_lsn);
    pq_sendint64(out, txn->commit_time);
    pq_sendint32(out, txn->xid);
}

logicalrep_write_commit()

void logicalrep_write_commit	(	StringInfo	out,
		ReorderBufferTXN *	txn,
		XLogRecPtr	commit_lsn
	)

Definition at line 74 of file proto.c.

References ReorderBufferTXN::commit_time, ReorderBufferTXN::end_lsn, LOGICAL_REP_MSG_COMMIT, pq_sendbyte(), and pq_sendint64().

Referenced by pgoutput_commit_txn().

{
    uint8       flags = 0;

    pq_sendbyte(out, LOGICAL_REP_MSG_COMMIT);

    /* send the flags field (unused for now) */
    pq_sendbyte(out, flags);

    /* send fields */
    pq_sendint64(out, commit_lsn);
    pq_sendint64(out, txn->end_lsn);
    pq_sendint64(out, txn->commit_time);
}

logicalrep_write_delete()

void logicalrep_write_delete	(	StringInfo	out,
		TransactionId	xid,
		Relation	rel,
		HeapTuple	oldtuple,
		bool	binary
	)

Definition at line 259 of file proto.c.

References Assert, LOGICAL_REP_MSG_DELETE, logicalrep_write_tuple(), pq_sendbyte(), pq_sendint32(), RelationData::rd_rel, RelationGetRelid, and TransactionIdIsValid.

Referenced by pgoutput_change().

{
    Assert(rel->rd_rel->relreplident == REPLICA_IDENTITY_DEFAULT ||
           rel->rd_rel->relreplident == REPLICA_IDENTITY_FULL ||
           rel->rd_rel->relreplident == REPLICA_IDENTITY_INDEX);

    pq_sendbyte(out, LOGICAL_REP_MSG_DELETE);

    /* transaction ID (if not valid, we're not streaming) */
    if (TransactionIdIsValid(xid))
        pq_sendint32(out, xid);

    /* use Oid as relation identifier */
    pq_sendint32(out, RelationGetRelid(rel));

    if (rel->rd_rel->relreplident == REPLICA_IDENTITY_FULL)
        pq_sendbyte(out, 'O');  /* old tuple follows */
    else
        pq_sendbyte(out, 'K');  /* old key follows */

    logicalrep_write_tuple(out, rel, oldtuple, binary);
}

logicalrep_write_insert()

void logicalrep_write_insert	(	StringInfo	out,
		TransactionId	xid,
		Relation	rel,
		HeapTuple	newtuple,
		bool	binary
	)

Definition at line 141 of file proto.c.

References LOGICAL_REP_MSG_INSERT, logicalrep_write_tuple(), pq_sendbyte(), pq_sendint32(), RelationGetRelid, and TransactionIdIsValid.

Referenced by pgoutput_change().

{
    pq_sendbyte(out, LOGICAL_REP_MSG_INSERT);

    /* transaction ID (if not valid, we're not streaming) */
    if (TransactionIdIsValid(xid))
        pq_sendint32(out, xid);

    /* use Oid as relation identifier */
    pq_sendint32(out, RelationGetRelid(rel));

    pq_sendbyte(out, 'N');      /* new tuple follows */
    logicalrep_write_tuple(out, rel, newtuple, binary);
}

logicalrep_write_origin()

void logicalrep_write_origin	(	StringInfo	out,
		const char *	origin,
		XLogRecPtr	origin_lsn
	)

Definition at line 112 of file proto.c.

References LOGICAL_REP_MSG_ORIGIN, pq_sendbyte(), pq_sendint64(), and pq_sendstring().

Referenced by pgoutput_begin_txn(), and pgoutput_stream_start().

{
    pq_sendbyte(out, LOGICAL_REP_MSG_ORIGIN);

    /* fixed fields */
    pq_sendint64(out, origin_lsn);

    /* origin string */
    pq_sendstring(out, origin);
}

logicalrep_write_rel()

void logicalrep_write_rel	(	StringInfo	out,
		TransactionId	xid,
		Relation	rel
	)

Definition at line 368 of file proto.c.

References LOGICAL_REP_MSG_RELATION, logicalrep_write_attrs(), logicalrep_write_namespace(), pq_sendbyte(), pq_sendint32(), pq_sendstring(), RelationData::rd_rel, RelationGetNamespace, RelationGetRelationName, RelationGetRelid, relname, and TransactionIdIsValid.

Referenced by send_relation_and_attrs().

{
    char       *relname;

    pq_sendbyte(out, LOGICAL_REP_MSG_RELATION);

    /* transaction ID (if not valid, we're not streaming) */
    if (TransactionIdIsValid(xid))
        pq_sendint32(out, xid);

    /* use Oid as relation identifier */
    pq_sendint32(out, RelationGetRelid(rel));

    /* send qualified relation name */
    logicalrep_write_namespace(out, RelationGetNamespace(rel));
    relname = RelationGetRelationName(rel);
    pq_sendstring(out, relname);

    /* send replica identity */
    pq_sendbyte(out, rel->rd_rel->relreplident);

    /* send the attribute info */
    logicalrep_write_attrs(out, rel);
}

logicalrep_write_stream_abort()

void logicalrep_write_stream_abort	(	StringInfo	out,
		TransactionId	xid,
		TransactionId	subxid
	)

Definition at line 850 of file proto.c.

References Assert, LOGICAL_REP_MSG_STREAM_ABORT, pq_sendbyte(), pq_sendint32(), and TransactionIdIsValid.

Referenced by pgoutput_stream_abort().

{
    pq_sendbyte(out, LOGICAL_REP_MSG_STREAM_ABORT);

    Assert(TransactionIdIsValid(xid) && TransactionIdIsValid(subxid));

    /* transaction ID */
    pq_sendint32(out, xid);
    pq_sendint32(out, subxid);
}

logicalrep_write_stream_commit()

void logicalrep_write_stream_commit	(	StringInfo	out,
		ReorderBufferTXN *	txn,
		XLogRecPtr	commit_lsn
	)

Definition at line 799 of file proto.c.

References Assert, ReorderBufferTXN::commit_time, ReorderBufferTXN::end_lsn, LOGICAL_REP_MSG_STREAM_COMMIT, pq_sendbyte(), pq_sendint32(), pq_sendint64(), TransactionIdIsValid, and ReorderBufferTXN::xid.

Referenced by pgoutput_stream_commit().

{
    uint8       flags = 0;

    pq_sendbyte(out, LOGICAL_REP_MSG_STREAM_COMMIT);

    Assert(TransactionIdIsValid(txn->xid));

    /* transaction ID */
    pq_sendint32(out, txn->xid);

    /* send the flags field (unused for now) */
    pq_sendbyte(out, flags);

    /* send fields */
    pq_sendint64(out, commit_lsn);
    pq_sendint64(out, txn->end_lsn);
    pq_sendint64(out, txn->commit_time);
}

logicalrep_write_stream_start()

void logicalrep_write_stream_start	(	StringInfo	out,
		TransactionId	xid,
		bool	first_segment
	)

Definition at line 756 of file proto.c.

References Assert, LOGICAL_REP_MSG_STREAM_START, pq_sendbyte(), pq_sendint32(), and TransactionIdIsValid.

Referenced by pgoutput_stream_start().

{
    pq_sendbyte(out, LOGICAL_REP_MSG_STREAM_START);

    Assert(TransactionIdIsValid(xid));

    /* transaction ID (we're starting to stream, so must be valid) */
    pq_sendint32(out, xid);

    /* 1 if this is the first streaming segment for this xid */
    pq_sendbyte(out, first_segment ? 1 : 0);
}

logicalrep_write_stream_stop()

void logicalrep_write_stream_stop

(

StringInfo

out

)

Definition at line 790 of file proto.c.

References LOGICAL_REP_MSG_STREAM_END, and pq_sendbyte().

Referenced by pgoutput_stream_stop().

{
    pq_sendbyte(out, LOGICAL_REP_MSG_STREAM_END);
}

logicalrep_write_truncate()

void logicalrep_write_truncate	(	StringInfo	out,
		TransactionId	xid,
		int	nrelids,
		Oid	relids[],
		bool	cascade,
		bool	restart_seqs
	)

Definition at line 311 of file proto.c.

References i, LOGICAL_REP_MSG_TRUNCATE, pq_sendbyte(), pq_sendint32(), pq_sendint8(), TransactionIdIsValid, TRUNCATE_CASCADE, and TRUNCATE_RESTART_SEQS.

Referenced by pgoutput_truncate().

{
    int         i;
    uint8       flags = 0;

    pq_sendbyte(out, LOGICAL_REP_MSG_TRUNCATE);

    /* transaction ID (if not valid, we're not streaming) */
    if (TransactionIdIsValid(xid))
        pq_sendint32(out, xid);

    pq_sendint32(out, nrelids);

    /* encode and send truncate flags */
    if (cascade)
        flags |= TRUNCATE_CASCADE;
    if (restart_seqs)
        flags |= TRUNCATE_RESTART_SEQS;
    pq_sendint8(out, flags);

    for (i = 0; i < nrelids; i++)
        pq_sendint32(out, relids[i]);
}

logicalrep_write_typ()

void logicalrep_write_typ	(	StringInfo	out,
		TransactionId	xid,
		Oid	typoid
	)

Definition at line 422 of file proto.c.

References elog, ERROR, getBaseType(), GETSTRUCT, HeapTupleIsValid, LOGICAL_REP_MSG_TYPE, logicalrep_write_namespace(), NameStr, ObjectIdGetDatum, pq_sendbyte(), pq_sendint32(), pq_sendstring(), ReleaseSysCache(), SearchSysCache1(), TransactionIdIsValid, and TYPEOID.

Referenced by send_relation_and_attrs().

{
    Oid         basetypoid = getBaseType(typoid);
    HeapTuple   tup;
    Form_pg_type typtup;

    pq_sendbyte(out, LOGICAL_REP_MSG_TYPE);

    /* transaction ID (if not valid, we're not streaming) */
    if (TransactionIdIsValid(xid))
        pq_sendint32(out, xid);

    tup = SearchSysCache1(TYPEOID, ObjectIdGetDatum(basetypoid));
    if (!HeapTupleIsValid(tup))
        elog(ERROR, "cache lookup failed for type %u", basetypoid);
    typtup = (Form_pg_type) GETSTRUCT(tup);

    /* use Oid as relation identifier */
    pq_sendint32(out, typoid);

    /* send qualified type name */
    logicalrep_write_namespace(out, typtup->typnamespace);
    pq_sendstring(out, NameStr(typtup->typname));

    ReleaseSysCache(tup);
}

logicalrep_write_update()

void logicalrep_write_update	(	StringInfo	out,
		TransactionId	xid,
		Relation	rel,
		HeapTuple	oldtuple,
		HeapTuple	newtuple,
		bool	binary
	)

Definition at line 185 of file proto.c.

References Assert, LOGICAL_REP_MSG_UPDATE, logicalrep_write_tuple(), pq_sendbyte(), pq_sendint32(), RelationData::rd_rel, RelationGetRelid, and TransactionIdIsValid.

Referenced by pgoutput_change().

{
    pq_sendbyte(out, LOGICAL_REP_MSG_UPDATE);

    Assert(rel->rd_rel->relreplident == REPLICA_IDENTITY_DEFAULT ||
           rel->rd_rel->relreplident == REPLICA_IDENTITY_FULL ||
           rel->rd_rel->relreplident == REPLICA_IDENTITY_INDEX);

    /* transaction ID (if not valid, we're not streaming) */
    if (TransactionIdIsValid(xid))
        pq_sendint32(out, xid);

    /* use Oid as relation identifier */
    pq_sendint32(out, RelationGetRelid(rel));

    if (oldtuple != NULL)
    {
        if (rel->rd_rel->relreplident == REPLICA_IDENTITY_FULL)
            pq_sendbyte(out, 'O');  /* old tuple follows */
        else
            pq_sendbyte(out, 'K');  /* old key follows */
        logicalrep_write_tuple(out, rel, oldtuple, binary);
    }

    pq_sendbyte(out, 'N');      /* new tuple follows */
    logicalrep_write_tuple(out, rel, newtuple, binary);
}