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发布订阅支持冲突处理

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This commit is contained in:
chenxiaobin19
2023-08-15 10:45:36 +08:00
parent 99c8bdebe8
commit b95efca6ef
21 changed files with 767 additions and 253 deletions
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80
contrib/test_decoding/test_decoding.cpp
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@ -199,87 +199,7 @@ static bool pg_decode_filter(LogicalDecodingContext* ctx, RepOriginId origin_id)
return true;
return false;
}
static void tuple_to_stringinfo(Relation relation, StringInfo s, TupleDesc tupdesc, HeapTuple tuple, bool isOld)
{
if ((tuple->tupTableType == HEAP_TUPLE) && (HEAP_TUPLE_IS_COMPRESSED(tuple->t_data) ||
(int)HeapTupleHeaderGetNatts(tuple->t_data, tupdesc) > tupdesc->natts)) {
return;
}
Oid oid;
/* print oid of tuple, it's not included in the TupleDesc */
if ((oid = HeapTupleHeaderGetOid(tuple->t_data)) != InvalidOid) {
appendStringInfo(s, " oid[oid]:%u", oid);
}
/* print all columns individually */
for (int natt = 0; natt < tupdesc->natts; natt++) {
Form_pg_attribute attr; /* the attribute itself */
Oid typoutput; /* output function */
bool typisvarlena = false;
Datum origval; /* possibly toasted Datum */
bool isnull = true; /* column is null? */
attr = &tupdesc->attrs[natt];
/*
* don't print dropped columns, we can't be sure everything is
* available for them
*/
if (attr->attisdropped)
continue;
/*
* Don't print system columns, oid will already have been printed if
* present.
*/
if (attr->attnum < 0 || (isOld && !IsRelationReplidentKey(relation, attr->attnum)))
continue;
Oid typid = attr->atttypid; /* type of current attribute */
/* get Datum from tuple */
if (tuple->tupTableType == HEAP_TUPLE) {
origval = heap_getattr(tuple, natt + 1, tupdesc, &isnull);
} else {
origval = uheap_getattr((UHeapTuple)tuple, natt + 1, tupdesc, &isnull);
}
/* print attribute name */
appendStringInfoChar(s, ' ');
appendStringInfoString(s, quote_identifier(NameStr(attr->attname)));
/* print attribute type */
appendStringInfoChar(s, '[');
char* type_name = format_type_be(typid);
if (strlen(type_name) == strlen("clob") && strncmp(type_name, "clob", strlen("clob")) == 0) {
errno_t rc = strcpy_s(type_name, sizeof("clob"), "text");
securec_check_c(rc, "\0", "\0");
}
appendStringInfoString(s, type_name);
appendStringInfoChar(s, ']');
/* query output function */
getTypeOutputInfo(typid, &typoutput, &typisvarlena);
/* print separator */
appendStringInfoChar(s, ':');
/* print data */
if (isnull)
appendStringInfoString(s, "null");
else if (typisvarlena && VARATT_IS_EXTERNAL_ONDISK_B(origval))
appendStringInfoString(s, "unchanged-toast-datum");
else if (!typisvarlena)
PrintLiteral(s, typid, OidOutputFunctionCall(typoutput, origval));
else {
Datum val; /* definitely detoasted Datum */
val = PointerGetDatum(PG_DETOAST_DATUM(origval));
PrintLiteral(s, typid, OidOutputFunctionCall(typoutput, val));
}
}
}
/*
* callback for individual changed tuples
*/