ST_MeshGeomFromEWKB-PolarDB(PolarDB)-阿里云帮助中心

This topic describes the ST_MeshGeomFromEWKB function. This function constructs a meshgeom object from the Extended Well-Known Binary (EWKB) representation of the meshgeom object.

Syntax

meshgeom ST_MeshGeomFromEWKB(bytea ewkb);

Parameters

Parameter Name	Description
ewkb	The EWKB representation of the meshgeom object.

Description

This function constructs a meshgeom object from the EWKB representation of the meshgeom object.

Examples

select ST_AsEWKT(ST_MeshGeomFromEWKB(ST_AsEWKB('MESHGEOM(PATCH(INDEXSURFACE(VERTEX(0 0 2,0 10 3,10 10 1,10 0 1), INDEX((0,1,2),(1,2,3)))))'::meshgeom)));

-----------------------------------------------------------------------------
 MESHGEOM(PATCH(INDEXSURFACE(VERTEX(0 0 2,0 10 3,10 10 1,10 0 1),INDEX((0,1,2),1,2,3))))