Merge pull request #1657 from greenbone/mergify/bp/gvmd-21.04/pr-1655

Always quote C collation (backport #1655)

CHANGELOG.md

@@ -104,7 +104,12 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ### Fixed
 - Fix VTs hash check and add --dump-vt-verification [#1611](https://github.com/greenbone/gvmd/pull/1611) [#1629](https://github.com/greenbone/gvmd/pull/1629)
 - Solved a performance problem when filtering results by tags [#1579](https://github.com/greenbone/gvmd/pull/1579)
-- Fix VTs hash check and add --dump-vt-verification [#1611](https://github.com/greenbone/gvmd/pull/1611) [#1629](https://github.com/greenbone/gvmd/pull/1629) [#1643](https://github.com/greenbone/gvmd/pull/1643) [1541](https://github.com/greenbone/gvmd/pull/1651)
+- Fix VTs hash check and add --dump-vt-verification
+  [#1611](https://github.com/greenbone/gvmd/pull/1611)
+  [#1629](https://github.com/greenbone/gvmd/pull/1629)
+  [#1641](https://github.com/greenbone/gvmd/pull/1651)
+  [#1643](https://github.com/greenbone/gvmd/pull/1643)
+  [#1655](https://github.com/greenbone/gvmd/pull/1655)
 - Fix memory errors in modify_permission [#1613](https://github.com/greenbone/gvmd/pull/1613)
 - Fix sensor connection for performance reports on failure [#1633](https://github.com/greenbone/gvmd/pull/1633)
 - Sort the "host" column by IPv4 address if possible [#1637](https://github.com/greenbone/gvmd/pull/1637)

src/manage_pg.c

@@ -904,7 +904,10 @@ manage_create_sql_functions ()
               || g_str_match_string ("UTF8", encoding, 0))
             quoted_collation = strdup ("ucs_basic");
           else
-            quoted_collation = strdup ("C");
+            // quote C collation because this seems to be required
+            // without quoting it an error is raised
+            // other collations don't need quoting
+            quoted_collation = strdup ("\"C\"");
 
           free (encoding);
         }