我正在使用数据库迁移工具 (DMS) 执行从 PostgreSQL 服务器到 AWS RDS 的逻辑复制。大多数表已成功迁移，但我在处理几个表时遇到了麻烦。
当我运行任务来加载表时，我在 RDS 日志上收到此错误：
ERROR: invalid input value for enum property_type: ""
CONTEXT: unnamed portal parameter $17 = ''
STATEMENT: INSERT INTO "public"."loans"("id","account_id","loan_number","created_at","updated_at","folio","mers_min","mers_status","mers_status_date","application_number","servicer","servicer_loan_number","status","primary_borrower_last_name","primary_borrower_first_name","property_number_of_units","property_type","property_address_line1","property_address_line2","property_city","property_state","property_zip","property_county_code","property_country_code","property_census_tract_code","property_parcel_id","mortgage_type","qm_loan","purpose","ltv","amortization_type","amount","interest_rate","term","lien_priority","application_date","approval_date","rejected_date","closing_date","funding_date","purchase_date","source","officer","processor","underwriter","appraiser","property_usage","fha_case_number","var_payload","approval_type","approval_message","housing_expense_ratio","total_debt_expense_ratio","subordinate_financing_amount","combined_ltv","property_appraised_value","property_purchase_price","property_appraised_date","property_year_built","credit_score","au_type","au_recommendation","lender_product","heloc_indicator","reverse_indicator","property_pud_indicator","closer","additional_financing_amount","rejected_reason","mortgage_insurance_certificate_number","mortgage_insurance_coverage_amount","mortgage_insurance_premium","day_one_certainty","first_payment_date","maturity_date","principal_and_interest_payment_amount","is_portfolio","financing_concessions_amount","sales_concessions_amount","transaction_costs_amount","is_investment_quality","application_received_date","lender_program","refinance_cash_out_type") values ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15,$16,$17,$18,$19,$20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$30,$31,$32,$33,$34,$35,$36,$37,$38,$39,$40,$41,$42,$43,$44,$45,$46,$47,$48,$49,$50,$51,$52,$53,$54,$55,$56,$57,$58,$59,$60,$61,$62,$63,$64,$65,$66,$67,$68,$69,$70,$71,$72,$73,$74,$75,$76,$77,$78,$79,$80,$81,$82,$83,$84)
列
property_typeenumCondominiumCooperativeManufacturedHomeSingleFamilyTownhouseTwoToFourFamily我在同一数据库中的另一个表中遇到类似的问题，我得到：
ERROR: malformed range literal: ""
DETAIL: Missing left parenthesis or bracket.
CONTEXT: unnamed portal parameter $3 = ''
STATEMENT: INSERT INTO "public"."selections_sampling_data"("id","sow_id","period","loan_number","field_data","selected_on","substituted_on","substitution_for_id","received_for_review_on","created_at","updated_at","selected_for","selection_reason","selections_sampling_strategy_id") values ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14)
这个没有明确告诉我哪一列产生了错误，但是参数
$3perioddaterange在这两种情况下，DMS 任务似乎都在查询空字符串作为值，这是这些数据类型不允许的。 我不知道这是否是我的架构错误，或者我如何配置 DMS 任务。
我的任务配置如下：
{
"StreamBufferSettings": {
"StreamBufferCount": 3,
"CtrlStreamBufferSizeInMB": 5,
"StreamBufferSizeInMB": 8
},
"ErrorBehavior": {
"FailOnNoTablesCaptured": true,
"ApplyErrorUpdatePolicy": "LOG_ERROR",
"FailOnTransactionConsistencyBreached": false,
"RecoverableErrorThrottlingMax": 1800,
"DataErrorEscalationPolicy": "SUSPEND_TABLE",
"ApplyErrorEscalationCount": 0,
"RecoverableErrorStopRetryAfterThrottlingMax": true,
"RecoverableErrorThrottling": true,
"ApplyErrorFailOnTruncationDdl": false,
"DataTruncationErrorPolicy": "LOG_ERROR",
"ApplyErrorInsertPolicy": "LOG_ERROR",
"EventErrorPolicy": "IGNORE",
"ApplyErrorEscalationPolicy": "LOG_ERROR",
"RecoverableErrorCount": -1,
"DataErrorEscalationCount": 0,
"TableErrorEscalationPolicy": "STOP_TASK",
"RecoverableErrorInterval": 5,
"ApplyErrorDeletePolicy": "IGNORE_RECORD",
"TableErrorEscalationCount": 0,
"FullLoadIgnoreConflicts": true,
"DataErrorPolicy": "LOG_ERROR",
"TableErrorPolicy": "SUSPEND_TABLE"
},
"ValidationSettings": {
"ValidationPartialLobSize": 0,
"PartitionSize": 10000,
"RecordFailureDelayLimitInMinutes": 0,
"SkipLobColumns": false,
"FailureMaxCount": 10000,
"HandleCollationDiff": false,
"ValidationQueryCdcDelaySeconds": 0,
"ValidationMode": "ROW_LEVEL",
"TableFailureMaxCount": 1000,
"RecordFailureDelayInMinutes": 5,
"MaxKeyColumnSize": 8096,
"EnableValidation": true,
"ThreadCount": 5,
"RecordSuspendDelayInMinutes": 30,
"ValidationOnly": false
},
"TTSettings": {
"TTS3Settings": null,
"TTRecordSettings": null,
"EnableTT": false
},
"FullLoadSettings": {
"CommitRate": 1000,
"StopTaskCachedChangesApplied": false,
"StopTaskCachedChangesNotApplied": false,
"MaxFullLoadSubTasks": 2,
"TransactionConsistencyTimeout": 600,
"CreatePkAfterFullLoad": false,
"TargetTablePrepMode": "DO_NOTHING"
},
"TargetMetadata": {
"ParallelApplyBufferSize": 0,
"ParallelApplyQueuesPerThread": 0,
"ParallelApplyThreads": 0,
"TargetSchema": "",
"InlineLobMaxSize": 0,
"ParallelLoadQueuesPerThread": 0,
"SupportLobs": true,
"LobChunkSize": 64,
"TaskRecoveryTableEnabled": false,
"ParallelLoadThreads": 0,
"LobMaxSize": 0,
"BatchApplyEnabled": true,
"FullLobMode": true,
"LimitedSizeLobMode": false,
"LoadMaxFileSize": 0,
"ParallelLoadBufferSize": 0
},
"BeforeImageSettings": null,
"ControlTablesSettings": {
"historyTimeslotInMinutes": 5,
"HistoryTimeslotInMinutes": 5,
"StatusTableEnabled": false,
"SuspendedTablesTableEnabled": false,
"HistoryTableEnabled": false,
"ControlSchema": "",
"FullLoadExceptionTableEnabled": false
},
"LoopbackPreventionSettings": null,
"CharacterSetSettings": null,
"FailTaskWhenCleanTaskResourceFailed": false,
"ChangeProcessingTuning": {
"StatementCacheSize": 50,
"CommitTimeout": 1,
"BatchApplyPreserveTransaction": true,
"BatchApplyTimeoutMin": 1,
"BatchSplitSize": 0,
"BatchApplyTimeoutMax": 30,
"MinTransactionSize": 1000,
"MemoryKeepTime": 60,
"BatchApplyMemoryLimit": 500,
"MemoryLimitTotal": 1024
},
"ChangeProcessingDdlHandlingPolicy": {
"HandleSourceTableDropped": true,
"HandleSourceTableTruncated": true,
"HandleSourceTableAltered": true
},
"PostProcessingRules": null
}
我们测试的其他解决方案，一旦您的
DMSalter table但请确保您永远不需要将数据从源数据库迁移到目标数据库，因为
DMS请注意，我们在
DMSforeign keysindexes如果您自己构建这些索引，则认为您可能需要
analyze