返回给定坐标点的度、...st_aslatlontext-40°0'0.000"N 116°0'0.000"E(1 row)指定输出格式：SELECT ST_AsLatLonText(ST_GeomFromText('POINT(116 40)',4326),'D度M分S.SS秒(C)');st_aslatlontext-40度0分0.00秒(N)116度0分0.00秒(E)(1 row)
返回给定坐标点的度、...st_aslatlontext-40°0'0.000"N 116°0'0.000"E(1 row)指定输出格式：SELECT ST_AsLatLonText(ST_GeomFromText('POINT(116 40)',4326),'D度M分S.SS秒(C)');st_aslatlontext-40度0分0.00秒(N)116度0分0.00秒(E)(1 row)
返回给定坐标点的度、...st_aslatlontext-40°0'0.000"N 116°0'0.000"E(1 row)指定输出格式：SELECT ST_AsLatLonText(ST_GeomFromText('POINT(116 40)',4326),'D度M分S.SS秒(C)');st_aslatlontext-40度0分0.00秒(N)116度0分0.00秒(E)(1 row)
st_2dcontains|st_3dcontains|st_2dtcontains|st_3dtcontains|st_2dcontains|st_3dcontains|st_2dtcontains|st_3dtcontains|st_2dcontains|st_3dcontains|st_2dtcontains|st_3dtcontains-+-+-+-+-+-+-+-+-+-+-+-t|t|t|t|t|t|f|f|f|f|f|f
st_2dcontains|st_3dcontains|st_2dtcontains|st_3dtcontains|st_2dcontains|st_3dcontains|st_2dtcontains|st_3dtcontains|st_2dcontains|st_3dcontains|st_2dtcontains|st_3dtcontains-+-+-+-+-+-+-+-+-+-+-+-t|t|t|t|t|t|f|f|f|f|f|f
st_2dcontains|st_3dcontains|st_2dtcontains|st_3dtcontains|st_2dcontains|st_3dcontains|st_2dtcontains|st_3dtcontains|st_2dcontains|st_3dcontains|st_2dtcontains|st_3dtcontains-+-+-+-+-+-+-+-+-+-+-+-t|t|t|t|t|t|f|f|f|f|f|f
st_2dcontains|st_3dcontains|st_2dtcontains|st_3dtcontains|st_2dcontains|st_3dcontains|st_2dtcontains|st_3dtcontains|st_2dcontains|st_3dcontains|st_2dtcontains|st_3dtcontains-+-+-+-+-+-+-+-+-+-+-+-t|t|t|t|t|t|f|f|f|f|f|f
3种连接样式对比：SELECT ST_Buffer('LINESTRING(0 0,3 0,3 3)':geometry,1.2,'join=round'),ST_Buffer('LINESTRING(6 0,9 0,9 3)':geometry,1.2,'join=mitre'),ST_Buffer('LINESTRING(12 0,15 0,15 3)':geometry,1.2,'join=bevel');...
3种连接样式对比：SELECT ST_Buffer('LINESTRING(0 0,3 0,3 3)':geometry,1.2,'join=round'),ST_Buffer('LINESTRING(6 0,9 0,9 3)':geometry,1.2,'join=mitre'),ST_Buffer('LINESTRING(12 0,15 0,15 3)':geometry,1.2,'join=bevel');...
3种连接样式对比：SELECT ST_Buffer('LINESTRING(0 0,3 0,3 3)':geometry,1.2,'join=round'),ST_Buffer('LINESTRING(6 0,9 0,9 3)':geometry,1.2,'join=mitre'),ST_Buffer('LINESTRING(12 0,15 0,15 3)':geometry,1.2,'join=bevel');...
b,ST_PGEpochToTS(0),ST_PGEpochToTS(49),19),ST_2dtDWithin(a,b,ST_PGEpochToTS(0),ST_PGEpochToTS(50),20),ST_3dtDWithin(a,b,ST_PGEpochToTS(0),ST_PGEpochToTS(50),20),ST_2dtDWithin(a,b,ST_PGEpochToTS(0),ST_PGEpochToTS(70),21),ST...
b,ST_PGEpochToTS(0),ST_PGEpochToTS(49),19),ST_2dtDWithin(a,b,ST_PGEpochToTS(0),ST_PGEpochToTS(50),20),ST_3dtDWithin(a,b,ST_PGEpochToTS(0),ST_PGEpochToTS(50),20),ST_2dtDWithin(a,b,ST_PGEpochToTS(0),ST_PGEpochToTS(70),21),ST...
b,ST_PGEpochToTS(0),ST_PGEpochToTS(49),19),ST_2dtDWithin(a,b,ST_PGEpochToTS(0),ST_PGEpochToTS(50),20),ST_3dtDWithin(a,b,ST_PGEpochToTS(0),ST_PGEpochToTS(50),20),ST_2dtDWithin(a,b,ST_PGEpochToTS(0),ST_PGEpochToTS(70),21),ST...
语法 record ST_JaccardSimilarity(trajectory tr1,trajectory tr2,double tol_dist,text unit default '{}',interval tol_time default NULL,timestamp ts default '-infinity',timestamp te default 'infinity');参数 参数名称 描述 tr1 ...
语法 record ST_JaccardSimilarity(trajectory tr1,trajectory tr2,double tol_dist,text unit default '{}',interval tol_time default NULL,timestamp ts default '-infinity',timestamp te default 'infinity');参数 参数名称 描述 tr1 ...
语法 record ST_JaccardSimilarity(trajectory tr1,trajectory tr2,double tol_dist,text unit default '{}',interval tol_time default NULL,timestamp ts default '-infinity',timestamp te default 'infinity');参数 参数名称 描述 tr1 ...
importFrom July 2021 ST_StorageLocation function The ST_StorageLocation function is supported.This function is used to return the external location of a trajectory.ST_StorageLocation July 2021 ST_AKID function The ST_AKID ...
queryFunction 支持的函数如下：ST_Contains ST_Within ST_DWithin ST_DWithinSphere ST_Intersects ST_Overlaps ST_Equals geomIndex 无 指定创建时空索引的列，该表的时空LookupJoin查询将自动通过内存索引加速。当前仅支持单表单列创建...
with srid SELECT st_astext(geom)FROM test WHERE ST_Contains(ST_SetSRID(ST_MakeBox2D(ST_Point(116,39),ST_Point(117,40)),4326),geom);ST_MakeBox2D算子生成一个Envelope。几何缓冲范围查询。without srid SELECT st_astext(geom)FROM...
stats 5.877772867563401 ms 100th percentile service time node-stats 8.322198991663754 ms error rate node-stats 0.00%Min Throughput default 50.02 ops/s Mean Throughput default 50.03 ops/s Median Throughput default 50.03 ops...
until-merges-finish 0.00%Min Throughput default 8.01 ops/s Mean Throughput default 8.01 ops/s Median Throughput default 8.01 ops/s Max Throughput default 8.01 ops/s 50th percentile latency default 3.0086994520388544 ms 90...
merges-finish 88735.99451303016 ms 100th percentile service time wait-until-merges-finish 88735.99451303016 ms error rate wait-until-merges-finish 0.00%Min Throughput default 3.02 ops/s Mean Throughput default 3.03 ops/s ...
append 878.5 ms 99.99th percentile service time index-append 1043.51 ms 100th percentile service time index-append 1428.1 ms error rate index-append 0%Min Throughput default 20.02 ops/s Mean Throughput default 20.02 ops/s ...
append 2125.09 ms 99.99th percentile service time index-append 2816.56 ms 100th percentile service time index-append 3341.14 ms error rate index-append 0%Min Throughput default 19.95 ops/s Mean Throughput default 19.96 ops...
append 2452.26 ms error rate index-append 0%Min Throughput default 20.01 ops/s Mean Throughput default 20.01 ops/s Median Throughput default 20.01 ops/s Max Throughput default 20.01 ops/s 50th percentile latency default 6....
Raster SQL参考 功能 函数 说明 Raster创建 ST_CreateRast 创建一个基于阿里云对象存储服务（OSS）的raster对象。导入导出 ST_ImportFrom 将一个OSS文件导入到数据库。ST_ExportTo 将一个raster对象导出为OSS文件。金字塔操作 ST_...
SELECT st_astext(geom)FROM holo_gis_2 WHERE ST_Covers(ST_SetSRID(ST_MakeBox2D(ST_Point(116,39),ST_Point(117,40)),4326),geom);返回结果如下：st_astext-POINT(116 39)多边形相交判定（在内部或在边界上）不指定SRID值。SELECT st_...
This topic describes the syntax of geospatial functions and provides examples on how to use the functions.Introduction Geospatial functions that start with the ST_prefix comply with the SQL/MM standard and the OpenGIS ...
This topic describes how to use open source geospatial user-defined functions(UDFs)to analyze spatial data.Prerequisites Make sure that the following requirements are met:Git is installed....CREATE FUNCTION ST_NumPoints AS...
st_isring|st_isclosed|st_issimple-+-+-t|t|t(1 row)返回false的情况：SELECT ST_IsRing(geom),ST_IsClosed(geom),ST_IsSimple(geom)FROM(SELECT 'LINESTRING(0 0,0 2,0 0)':geometry AS geom)AS test;st_isring|st_isclosed|st_issimple-...
This topic describes the ST_Collect function.This function returns a geometry object that represents the collection of input geometry objects.Syntax geometry ST_Collect(geometry set g1Field);geometry ST_Collect(geometry g1...