/*
* Free the entry of a relation map cache.
*/
static void
logicalrep_relmap_free_entry(LogicalRepRelMapEntry *entry)
{
LogicalRepRelation *remoterel;
remoterel = &entry->remoterel;
pfree(remoterel->nspname);
pfree(remoterel->relname);
if (remoterel->natts > 0)
{
int i;
for (i = 0; i < remoterel->natts; i++)
pfree(remoterel->attnames[i]);
pfree(remoterel->attnames);
pfree(remoterel->atttyps);
}
remoterel->attnames = NULL;
remoterel->atttyps = NULL;
bms_free(remoterel->attkeys);
remoterel->attkeys = NULL;
if (entry->attrmap)
pfree(entry->attrmap);
entry->attrmap = NULL;
remoterel->natts = 0;
entry->localreloid = InvalidOid;
entry->localrel = NULL;
}
/*
* Free the entry of a relation map cache.
*/
static void
logicalrep_relmap_free_entry(LogicalRepRelMapEntry *entry)
{
LogicalRepRelation *remoterel;
remoterel = &entry->remoterel;
pfree(remoterel->nspname);
pfree(remoterel->relname);
if (remoterel->natts > 0)
{
int i;
for (i = 0; i < remoterel->natts; i++)
pfree(remoterel->attnames[i]);
pfree(remoterel->attnames);
pfree(remoterel->atttyps);
}
bms_free(remoterel->attkeys);
if (entry->attrmap)
pfree(entry->attrmap);
}
/*
* Write relation attributes to the stream.
*/
static void
logicalrep_write_attrs(StringInfo out, Relation rel)
{
TupleDesc desc;
int i;
uint16 nliveatts = 0;
Bitmapset *idattrs = NULL;
bool replidentfull;
desc = RelationGetDescr(rel);
/* send number of live attributes */
for (i = 0; i < desc->natts; i++)
{
if (TupleDescAttr(desc, i)->attisdropped)
continue;
nliveatts++;
}
pq_sendint(out, nliveatts, 2);
/* fetch bitmap of REPLICATION IDENTITY attributes */
replidentfull = (rel->rd_rel->relreplident == REPLICA_IDENTITY_FULL);
if (!replidentfull)
idattrs = RelationGetIndexAttrBitmap(rel,
INDEX_ATTR_BITMAP_IDENTITY_KEY);
/* send the attributes */
for (i = 0; i < desc->natts; i++)
{
Form_pg_attribute att = TupleDescAttr(desc, i);
uint8 flags = 0;
if (att->attisdropped)
continue;
/* REPLICA IDENTITY FULL means all columns are sent as part of key. */
if (replidentfull ||
bms_is_member(att->attnum - FirstLowInvalidHeapAttributeNumber,
idattrs))
flags |= LOGICALREP_IS_REPLICA_IDENTITY;
pq_sendbyte(out, flags);
/* attribute name */
pq_sendstring(out, NameStr(att->attname));
/* attribute type id */
pq_sendint(out, (int) att->atttypid, sizeof(att->atttypid));
/* attribute mode */
pq_sendint(out, att->atttypmod, sizeof(att->atttypmod));
}
bms_free(idattrs);
}
/*
* _outBitmapset -
* converts a bitmap set of integers
*
* Note: the output format is "(b int int ...)", similar to an integer List.
*/
void
_outBitmapset(StringInfo str, const Bitmapset *bms)
{
Bitmapset *tmpset;
int x;
appendStringInfoChar(str, '(');
appendStringInfoChar(str, 'b');
tmpset = bms_copy(bms);
while ((x = bms_first_member(tmpset)) >= 0)
appendStringInfo(str, " %d", x);
bms_free(tmpset);
appendStringInfoChar(str, ')');
}
