为st_geometryfromwkb函数提供的GIS数据无效

Question

我正在尝试为加拿大各省创建一个空间数据的MySQL数据库。

我从https://www12.statcan.gc.ca/census-recensement/2011/geo/bound-limit/files-fichiers/2016/lpr_000a16a_e.zip下载了.SHP文件，并尝试使用ogr2ogr工具将文件转换为MySQL的空间数据。不幸的是，我可以在我的Mac上安装的ogr2ogr只进行PostgreSQL转储，但看起来数据是WKB格式。

所以，我创建了转储：

ogr2ogr -nlt GEOMETRYCOLLECTION -f PGDUMP canada.sql lpr_000a16a_e/lpr_000a16a_e.shp

然后我手动编辑了SQL文件，所以它现在看起来像这样：

CREATE TABLE `region_data` (
    `country_code` CHAR(2) NOT NULL,
    `state_code` VARCHAR(10) DEFAULT NULL,
    `geom` GEOMETRYCOLLECTION NOT NULL,
);

INSERT INTO `db_update`.`geospatial_region_data` (`country_code`, `state_code`, `geom`) VALUES ('CA', 'PE', ST_GeomCollFrom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但是，当我运行查询时，我得到Invalid GIS data provided to function st_geometryfromwkb.。知道发生了什么事吗？我尝试在https://rodic.fr/blog/online-conversion-between-geometric-formats/“验证”WKB数据，看起来没问题。

Answer 1

我做了一些调查：

1）在BigQuery中运行它，它报告更好的错误消息（使用完整的WKB字符串，在此处缩短）：

select ST_GeogFromWKB(FROM_HEX('0107000020E610...'))

获取ST_GeogFromWKB failed: Unknown object type 536870919; during WKB parsing

2）将536870919转换为十六进制，得到0x20000007

3）在Google上搜索“WKB 0x20000007”，找到了针对ZM几何的EWKB提案：

https://lists.osgeo.org/pipermail/postgis-devel/2004-December/000710.html

显然，MySQL和BigQuery都不支持此扩展。