Examples of org.voltdb.catalog.CatalogDiffEngine.errors()

            retval.expectedCatalogVersion = context.catalog.getCatalogVersion();


            // compute the diff in StringBuilder
            CatalogDiffEngine diff = new CatalogDiffEngine(context.catalog, newCatalog);
            if (!diff.supported()) {
                throw new Exception("The requested catalog change is not a supported change at this time. " + diff.errors());
            }


            // since diff commands can be stupidly big, compress them here
            retval.encodedDiffCommands = Encoder.compressAndBase64Encode(diff.commands());
            // check if the resulting string is small enough to fit in our parameter sets (about 2mb)

            retval.expectedCatalogVersion = context.catalogVersion;


            // compute the diff in StringBuilder
            CatalogDiffEngine diff = new CatalogDiffEngine(context.catalog, newCatalog);
            if (!diff.supported()) {
                retval.errorMsg = "The requested catalog change(s) are not supported:\n" + diff.errors();
                return retval;
            }


            // since diff commands can be stupidly big, compress them here
            retval.encodedDiffCommands = Encoder.compressAndBase64Encode(diff.commands());

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