无法使用spacespaceite创建列->意外的元数据布局

问题描述

我对spacespaceite非常陌生.我在Max OS Mountain Lion上运行，并且已经安装了SQLite版本3.7.17和libspatialite 4.1.1(使用自制软件)

I'm very new with spatialite. I'm running on Max OS Mountain lion and I have installed SQLite version 3.7.17 and libspatialite 4.1.1 (using homebrew)

我可以在SQLite中正确加载扩展libspatialite:

I can load without error the extension libspatialite in SQLite :

SELECT load_extension('/usr/local/Cellar/libspatialite/4.1.1/lib/libspatialite.dylib');

我可以创建一个简单的表:

I can create a simple table:

sqlite> CREATE TABLE test_geom (
   ...>   id INTEGER NOT NULL
   ...>     PRIMARY KEY AUTOINCREMENT,
   ...>   name TEXT NOT NULL,
   ...>   measured_value DOUBLE NOT NULL);

但是当我添加带有spacealite的几何"列时，会收到以下消息:

but when I add a Geometry column with spatialite I get the following message:

sqlite> SELECT AddGeometryColumn('test_geom', 'the_geom',4326, 'POINT');
AddGeometryColumn() error: unexpected metadata layout
0

我不知道要解决此问题.有人可以帮忙吗?

I have no idea to fix this issue. Can somebody help?

推荐答案

当您将SQLite与Spatialite扩展一起使用时，会发生这种情况.在这种情况下，您需要初始化空间元数据表(在创建数据库后立即执行此操作):

This happens when you are using SQLite with Spatialite extension. In that case, you need to initialize spatial metadata tables (do this right after creating the database):

SELECT InitSpatialMetaData();

另一种选择是在创建数据库时运行Spatialite.然后，将自动创建元数据表.

Another option would be to run Spatialite when creating the database. That will then automatically create the metadata tables.

文档: http://www.gaia- gis.it/gaia-sins/spatialite-cookbook/html/metadata.html

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