The gene_archive table holds depricated genes. The fields

translation_stable_id, translation_version, peptide_archive_id ought
to be NULL for genes that lack a translation.  This patch fixes these
fields to allow for NULLs.

sql/patch_54_55_h.sql

+# patch_54_55_h.sql
+#
+# title: Change translation-related fields in gene_archive to allow for NULLs.
+#
+# description:
+# The gene_archive table holds depricated genes.  The fields
+# translation_stable_id, translation_version, peptide_archive_id ought
+# to be NULL for genes that lack a translation.  This patch fixes these
+# fields to allow for NULLs.
+
+ALTER TABLE gene_archive
+  MODIFY COLUMN translation_stable_id   VARCHAR(128),
+  MODIFY COLUMN translation_version     SMALLINT,
+  MODIFY COLUMN peptide_archive_id      INT(10) UNSIGNED;
+
+-- Also fixup existing data
+UPDATE gene_archive
+  SET translation_stable_id = NULL,
+      translation_version = NULL,
+      peptide_archive_id = NULL
+  WHERE translation_stable_id = '';
+
+# patch identifier
+INSERT INTO meta (species_id, meta_key, meta_value)
+VALUES (NULL, 'patch', 'patch_54_55_h.sql|gene_archive.allow_for_NULLs');