MonetDB: Oct2020 - Only destroy if successfully created.

[Sjoerd Mullender]

Changeset: 82cf435243a7 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/82cf435243a7
Modified Files:
        sql/backends/monet5/sql_upgrades.c
Branch: Oct2020
Log Message:

Only destroy if successfully created.


diffs (14 lines):

diff --git a/sql/backends/monet5/sql_upgrades.c 
b/sql/backends/monet5/sql_upgrades.c
--- a/sql/backends/monet5/sql_upgrades.c
+++ b/sql/backends/monet5/sql_upgrades.c
@@ -971,9 +971,8 @@ sql_update_apr2019_sp1(Client c)
                        }
                        BBPunfix(b->batCacheid);
                }
+               res_tables_destroy(output);
        }
-       if (output != NULL)
-               res_tables_destroy(output);
 
        return err;             /* usually MAL_SUCCEED */
 }
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