SpatiaLite v4.0.0 RecoverGeometryColumn违反了几何约束[geom-type或SRID not allowed]'

Question

如果您不指定几何列为小写字母，则最终会获得使用RecoverGeometryColumn函数创建空间表和恢复几何图形a'违反了几何约束[geom-type或SRID not allowed]错误。

我做错了什么或者我错过了某些地方的文档？

Answer 1

举个例子：

1. 创建具有空间列

   CREATE TABLE "test1" (
   "PK_UID" INTEGER PRIMARY KEY AUTOINCREMENT, 
   "Geometry" MULTIPOLYGON) 
   

2. 恢复几何

   SELECT RecoverGeometryColumn('test1', 'Geometry', 2, 'MULTIPOLYGON',2); 
   

3. 看看所创建的触发器表

   select * from sqlite_master where type='trigger' and lower(tbl_name)='test1' 
   

结果：

CREATE TRIGGER "ggi_test1_Geometry" BEFORE INSERT ON "test1" 
    FOR EACH ROW BEGIN 
    SELECT RAISE(ROLLBACK, 'test1.Geometry violates Geometry constraint [geom-type or SRID not allowed]') 
    WHERE (SELECT type FROM geometry_columns 
    WHERE f_table_name = 'test1' AND f_geometry_column = 'Geometry' 
    AND GeometryConstraints(NEW."Geometry", type, srid, 'XY') = 1) IS NULL; 
    END 

    CREATE TRIGGER "ggu_test1_Geometry" BEFORE UPDATE ON "test1" 
    FOR EACH ROW BEGIN 
    SELECT RAISE(ROLLBACK, 'test1.Geometry violates Geometry constraint [geom-type or SRID not allowed]') 
    WHERE (SELECT type FROM geometry_columns 
    WHERE f_table_name = 'test1' AND f_geometry_column = 'Geometry' 
    AND GeometryConstraints(NEW."Geometry", type, srid, 'XY') = 1) IS NULL; 
    END 

什么是在GEOMETRY_COLUMNS表

select * from geometry_columns 

结果比较：

f_table_name f_geometry_column型coord_dimension SRID spaitial_index_enabled

test1的几何MULTIPOLYGON XY 2 0

结论： 注意，f_geometry_column被指定为“几何”，但触发GEOMETRY_COLUMNS表寻找“几何学”。这会导致'几何约束[geom-type或SRID not allowed]'问题。所以修复是让你的空间列名小写。