{"record":{"id":"40feaa91343ca049","repo":"apache/iceberg","slug":"unsupported-view-commit-operation-viewcommit","errorCode":null,"errorMessage":"Unsupported view commit operation: ${viewCommit}","messagePattern":"Unsupported view commit operation: (.+?)","errorType":"exception","errorClass":"IllegalArgumentException","httpStatus":null,"severity":"error","filePath":"spark/v4.2/spark/src/main/java/org/apache/iceberg/spark/SparkCatalog.java","lineNumber":667,"sourceCode":"\n      org.apache.iceberg.view.View icebergView;\n      Set<String> replacedProperties = null;\n      switch (viewCommit) {\n        case CREATE:\n          icebergView = builder.create();\n          break;\n        case REPLACE:\n          replacedProperties = propertiesReplacedBySpark(viewIdentifier);\n          icebergView = builder.replace();\n          break;\n        case CREATE_OR_REPLACE:\n          Pair<Set<String>, org.apache.iceberg.view.View> replacement =\n              createOrReplaceView(viewIdentifier, builder);\n          replacedProperties = replacement.first();\n          icebergView = replacement.second();\n          break;\n        default:\n          throw new IllegalArgumentException(\"Unsupported view commit operation: \" + viewCommit);\n      }\n\n      if (replacedProperties != null) {\n        removeDroppedViewProperties(icebergView, replacedProperties, props.keySet());\n      }\n\n      return SparkView.toView(catalogName, icebergView);\n    } catch (org.apache.iceberg.exceptions.NoSuchNamespaceException e) {\n      throw new NoSuchNamespaceException(ident.namespace());\n    } catch (AlreadyExistsException e) {\n      if (viewCommit == ViewCommit.REPLACE && tableExists(ident)) {\n        throw new NoSuchViewException(ident);\n      } else if (viewCommit == ViewCommit.REPLACE) {\n        // A table collision was handled above. Spark has no equivalent exception for other\n        // Iceberg replacement conflicts, so preserve the original failure.\n        throw e;\n      }\n","sourceCodeStart":649,"sourceCodeEnd":685,"githubUrl":"https://github.com/apache/iceberg/blob/86d9c8fc543e7c56c9f624eb725f76c9baff9570/spark/v4.2/spark/src/main/java/org/apache/iceberg/spark/SparkCatalog.java#L649-L685","documentation":"commitView switches over the ViewCommit kind (CREATE, REPLACE, CREATE_OR_REPLACE); the default branch throws IllegalArgumentException for any unsupported commit operation value. This is an internal exhaustive-switch guard.","triggerScenarios":"Internal dispatch reaching commitView with a ViewCommit value outside the known enum set — effectively an internal invariant violation, not normally caused by user input.","commonSituations":"Bug after adding a new ViewCommit enum constant without updating commitView; custom fork modification.","solutions":["Upgrade the Iceberg connector version — likely an internal bug","File an issue with the full stack trace","If on a fork, add the missing case to the switch in commitView"],"exampleFix":"// before\ndefault: throw new IllegalArgumentException(\"Unsupported view commit operation: \" + viewCommit);\n// after\ncase NEW_OP -> createNewOp(viewIdentifier, builder); // add case when a new enum value exists","handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":"try { spark.sql(\"CREATE OR REPLACE VIEW \" + ident); }\ncatch (IllegalArgumentException e) {\n  if (e.getMessage().startsWith(\"Unsupported view commit operation\")) { /* upgrade connector / file issue */ }\n}","preventionTips":["Keep Iceberg connector and catalog plugin versions aligned","Treat this as a bug and capture the stack trace","Exhaustively cover ViewCommit values when patching commitView"],"tags":["spark","view","internal-error"],"backgroundTag":"internal-invariant-violation","analyzedSha":"86d9c8fc543e7c56c9f624eb725f76c9baff9570","analyzedAt":"2026-09-12T00:46:39.097Z","contentChangedAt":"2026-09-12T00:46:39.097Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}