[postgis-tickets] [SCM] PostGIS branch master updated. 3.2.0alpha1-19-gf48c4a8

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commit f48c4a86a95203b06e05557d26145b2adf85923b
Author: michal <michal.palenik at freemap.sk>
Date:   Thu Sep 23 11:56:05 2021 -0700

    describe behaviour in case of LineStrings
    References https://git.osgeo.org/gitea/postgis/postgis/pulls/58 for
    PostGIS 3.2.0

diff --git a/doc/reference_overlay.xml b/doc/reference_overlay.xml
index 207b3aa..5f051ec 100644
--- a/doc/reference_overlay.xml
+++ b/doc/reference_overlay.xml
@@ -974,6 +974,9 @@ on that same grid. (Requires GEOS-3.9.0 or higher)
         </para></note>
 
     <para>Performed by the GEOS module.</para>
+    <para>ST_Union creates MultiLineString and does not sew LineStrings into a single LineString.
+        Use <xref linkend="ST_LineMerge" /> to sew LineStrings.</para>
+        
     <para>NOTE: this function was formerly called GeomUnion(), which
         was renamed from "Union" because UNION is an SQL reserved
         word.</para>

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Summary of changes:
 doc/reference_overlay.xml | 3 +++
 1 file changed, 3 insertions(+)


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