186 #ifndef HAVE_LIBPROTOBUF
187 elog(ERROR,
"ST_AsMVT: Compiled without protobuf-c support");
192 elog(DEBUG2,
"%s called", __func__);
193 if (!AggCheckCallContext(fcinfo, NULL))
194 elog(ERROR,
"%s called in non-aggregate context", __func__);
198 bytea *emptybuf = palloc(VARHDRSZ);
199 SET_VARSIZE(emptybuf, VARHDRSZ);
200 PG_RETURN_BYTEA_P(emptybuf);
205 PG_RETURN_BYTEA_P(buf);
bytea * mvt_agg_finalfn(mvt_agg_context *ctx)
Finalize aggregation.