parse_values()

static void parse_values ( struct mvt_agg_context *  ctx )

static

Definition at line 556 of file mvt.c.

References mvt_agg_context::c, DatumGetJsonbP, mvt_agg_context::feature, mvt_agg_context::geom_index, get_key_index(), get_tuple_desc(), mvt_agg_context::keys_hash_i, MVT_PARSE_DATUM, MVT_PARSE_INT_DATUM, parse_datum_as_string(), parse_jsonb(), and mvt_agg_context::row.

Referenced by mvt_agg_transfn().

{
        POSTGIS_DEBUG(2, "parse_values called");
        uint32_t n_keys = ctx->keys_hash_i;
        uint32_t *tags = palloc(n_keys * 2 * sizeof(*tags));
        bool isnull;
        uint32_t i, k;
        TupleDesc tupdesc = get_tuple_desc(ctx);
        int natts = tupdesc->natts;
        ctx->c = 0;

        POSTGIS_DEBUGF(3, "parse_values natts: %d", natts);

        for (i = 0; i < natts; i++) {
                char *key;
                Oid typoid;
                Datum datum;

                if (i == ctx->geom_index)
                        continue;

#if POSTGIS_PGSQL_VERSION < 110
                key = tupdesc->attrs[i]->attname.data;
                typoid = getBaseType(tupdesc->attrs[i]->atttypid);
#else
                key = tupdesc->attrs[i].attname.data;
                typoid = getBaseType(tupdesc->attrs[i].atttypid);
#endif
                datum = GetAttributeByNum(ctx->row, i+1, &isnull);
                k = get_key_index(ctx, key);
                if (isnull) {
                        POSTGIS_DEBUG(3, "parse_values isnull detected");
                        continue;
                }
#if POSTGIS_PGSQL_VERSION >= 94
                if (k == -1 && typoid != JSONBOID)
                        elog(ERROR, "parse_values: unexpectedly could not find parsed key name '%s'", key);
                if (typoid == JSONBOID) {
                        tags = parse_jsonb(ctx, DatumGetJsonbP(datum), tags);
                        continue;
                }
#else
                if (k == -1)
                        elog(ERROR, "parse_values: unexpectedly could not find parsed key name '%s'", key);
#endif

                switch (typoid) {
                case BOOLOID:
                        MVT_PARSE_DATUM(protobuf_c_boolean, mvt_kv_bool_value,
                                bool_values_hash, bool_value,
                                DatumGetBool, sizeof(protobuf_c_boolean));
                        break;
                case INT2OID:
                        MVT_PARSE_INT_DATUM(int16_t, DatumGetInt16);
                        break;
                case INT4OID:
                        MVT_PARSE_INT_DATUM(int32_t, DatumGetInt32);
                        break;
                case INT8OID:
                        MVT_PARSE_INT_DATUM(int64_t, DatumGetInt64);
                        break;
                case FLOAT4OID:
                        MVT_PARSE_DATUM(float, mvt_kv_float_value,
                                float_values_hash, float_value,
                                DatumGetFloat4, sizeof(float));
                        break;
                case FLOAT8OID:
                        MVT_PARSE_DATUM(double, mvt_kv_double_value,
                                double_values_hash, double_value,
                                DatumGetFloat8, sizeof(double));
                        break;
                default:
                        parse_datum_as_string(ctx, typoid, datum, tags, k);
                        break;
                }
                ctx->c++;
        }

        ReleaseTupleDesc(tupdesc);

        ctx->feature->n_tags = ctx->c * 2;
        ctx->feature->tags = tags;

        POSTGIS_DEBUGF(3, "parse_values n_tags %zd", ctx->feature->n_tags);
}

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