var Y=Object.create;var N=Object.defineProperty;var H=Object.getOwnPropertyDescriptor;var j=Object.getOwnPropertyNames;var K=Object.getPrototypeOf,V=Object.prototype.hasOwnProperty;var z=(s,e)=>()=>(e||s((e={exports:{}}).exports,e),e.exports);var J=(s,e,r,t)=>{if(e&&typeof e=="object"||typeof e=="function")for(let o of j(e))!V.call(s,o)&&o!==r&&N(s,o,{get:()=>e[o],enumerable:!(t=H(e,o))||t.enumerable});return s};var $=(s,e,r)=>(r=s!=null?Y(K(s)):{},J(e||!s||!s.__esModule?N(r,"default",{value:s,enumerable:!0}):r,s));var x=z((qe,G)=>{G.exports=Worker});var Z=(o=>(o[o.UNDEFINED=0]="UNDEFINED",o[o.AUTOMATIC=1]="AUTOMATIC",o[o.READ_ONLY=2]="READ_ONLY",o[o.READ_WRITE=3]="READ_WRITE",o))(Z||{});var X=(n=>(n[n.IDENTIFIER=0]="IDENTIFIER",n[n.NUMERIC_CONSTANT=1]="NUMERIC_CONSTANT",n[n.STRING_CONSTANT=2]="STRING_CONSTANT",n[n.OPERATOR=3]="OPERATOR",n[n.KEYWORD=4]="KEYWORD",n[n.COMMENT=5]="COMMENT",n))(X||{});var 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this._bindings.insertJSONFromPath(this._conn,e,r)}},p=class{constructor(e,r,t){this.db=e;this.conn=r;this.header=t;this._first=!0,this._depleted=!1,this._inFlight=null}async next(){if(this._first)return this._first=!1,{done:!1,value:this.header};if(this._depleted)return{done:!0,value:null};let e;return this._inFlight!=null?(e=await this._inFlight,this._inFlight=null):e=await this.db.fetchQueryResults(this.conn),this._depleted=e.length==0,this._depleted||(this._inFlight=this.db.fetchQueryResults(this.conn)),{done:this._depleted,value:e}}[Symbol.asyncIterator](){return this}},b=class{constructor(e,r,t){this.bindings=e,this.connectionId=r,this.statementId=t}async close(){await this.bindings.closePrepared(this.connectionId,this.statementId)}async query(...e){let r=await this.bindings.runPrepared(this.connectionId,this.statementId,e),t=l.RecordBatchReader.from(r);return console.assert(t.isSync()),console.assert(t.isFile()),new l.Table(t)}async send(...e){let r=await this.bindings.sendPrepared(this.connectionId,this.statementId,e),t=new p(this.bindings,this.connectionId,r),o=await l.RecordBatchReader.from(t);return console.assert(o.isAsync()),console.assert(o.isStream()),o}};var L=(c=>(c.CANCEL_PENDING_QUERY="CANCEL_PENDING_QUERY",c.CLOSE_PREPARED="CLOSE_PREPARED",c.COLLECT_FILE_STATISTICS="COLLECT_FILE_STATISTICS",c.CONNECT="CONNECT",c.COPY_FILE_TO_BUFFER="COPY_FILE_TO_BUFFER",c.COPY_FILE_TO_PATH="COPY_FILE_TO_PATH",c.CREATE_PREPARED="CREATE_PREPARED",c.DISCONNECT="DISCONNECT",c.DROP_FILE="DROP_FILE",c.DROP_FILES="DROP_FILES",c.EXPORT_FILE_STATISTICS="EXPORT_FILE_STATISTICS",c.FETCH_QUERY_RESULTS="FETCH_QUERY_RESULTS",c.FLUSH_FILES="FLUSH_FILES",c.GET_FEATURE_FLAGS="GET_FEATURE_FLAGS",c.GET_TABLE_NAMES="GET_TABLE_NAMES",c.GET_VERSION="GET_VERSION",c.GLOB_FILE_INFOS="GLOB_FILE_INFOS",c.INSERT_ARROW_FROM_IPC_STREAM="INSERT_ARROW_FROM_IPC_STREAM",c.INSERT_CSV_FROM_PATH="IMPORT_CSV_FROM_PATH",c.INSERT_JSON_FROM_PATH="IMPORT_JSON_FROM_PATH",c.INSTANTIATE="INSTANTIATE",c.OPEN="OPEN",c.PING="PING",c.POLL_PENDING_QUERY="POLL_PENDING_QUERY",c.REGISTER_FILE_BUFFER="REGISTER_FILE_BUFFER",c.REGISTER_FILE_HANDLE="REGISTER_FILE_HANDLE",c.REGISTER_FILE_URL="REGISTER_FILE_URL",c.RESET="RESET",c.RUN_PREPARED="RUN_PREPARED",c.RUN_QUERY="RUN_QUERY",c.SEND_PREPARED="SEND_PREPARED",c.START_PENDING_QUERY="START_PENDING_QUERY",c.TOKENIZE="TOKENIZE",c))(L||{}),D=(u=>(u.CONNECTION_INFO="CONNECTION_INFO",u.ERROR="ERROR",u.FEATURE_FLAGS="FEATURE_FLAGS",u.FILE_BUFFER="FILE_BUFFER",u.FILE_INFOS="FILE_INFOS",u.FILE_SIZE="FILE_SIZE",u.FILE_STATISTICS="FILE_STATISTICS",u.INSTANTIATE_PROGRESS="INSTANTIATE_PROGRESS",u.LOG="LOG",u.OK="OK",u.PREPARED_STATEMENT_ID="PREPARED_STATEMENT_ID",u.QUERY_PLAN="QUERY_PLAN",u.QUERY_RESULT="QUERY_RESULT",u.QUERY_RESULT_CHUNK="QUERY_RESULT_CHUNK",u.QUERY_RESULT_HEADER="QUERY_RESULT_HEADER",u.QUERY_RESULT_HEADER_OR_NULL="QUERY_RESULT_HEADER_OR_NULL",u.REGISTERED_FILE="REGISTERED_FILE",u.SCRIPT_TOKENS="SCRIPT_TOKENS",u.SUCCESS="SUCCESS",u.TABLE_NAMES="TABLE_NAMES",u.VERSION_STRING="VERSION_STRING",u))(D||{}),d=class{constructor(e,r){this.promiseResolver=()=>{};this.promiseRejecter=()=>{};this.type=e,this.data=r,this.promise=new 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a.Type.IntervalDayTime:return{sqlType:"interval[dt]"};case a.Type.IntervalYearMonth:return{sqlType:"interval[m]"};case a.Type.List:return{sqlType:"list",valueType:m(s.valueType)};case a.Type.FixedSizeBinary:return{sqlType:"fixedsizebinary",byteWidth:s.byteWidth};case a.Type.Null:return{sqlType:"null"};case a.Type.Utf8:return{sqlType:"utf8"};case a.Type.Struct:return{sqlType:"struct",fields:s.children.map(r=>_(r.name,r.type))};case a.Type.Map:{let e=s;return{sqlType:"map",keyType:m(e.keyType),valueType:m(e.valueType)}}case a.Type.Time:return{sqlType:"time[s]"};case a.Type.TimeMicrosecond:return{sqlType:"time[us]"};case a.Type.TimeMillisecond:return{sqlType:"time[ms]"};case a.Type.TimeNanosecond:return{sqlType:"time[ns]"};case a.Type.TimeSecond:return{sqlType:"time[s]"};case a.Type.Timestamp:return{sqlType:"timestamp",timezone:s.timezone||void 0};case a.Type.TimestampSecond:return{sqlType:"timestamp[s]",timezone:s.timezone||void 0};case a.Type.TimestampMicrosecond:return{sqlType:"timestamp[us]",timezone:s.timezone||void 0};case a.Type.TimestampNanosecond:return{sqlType:"timestamp[ns]",timezone:s.timezone||void 0};case a.Type.TimestampMillisecond:return{sqlType:"timestamp[ms]",timezone:s.timezone||void 0}}throw new Error("unsupported arrow type: ".concat(s.toString()))}function _(s,e){let r=m(e);return r.name=s,r}var oe=new TextEncoder,O=class{constructor(e,r=null){this._onInstantiationProgress=[];this._worker=null;this._workerShutdownPromise=null;this._workerShutdownResolver=()=>{};this._nextMessageId=0;this._pendingRequests=new Map;this._logger=e,this._onMessageHandler=this.onMessage.bind(this),this._onErrorHandler=this.onError.bind(this),this._onCloseHandler=this.onClose.bind(this),r!=null&&this.attach(r)}get logger(){return this._logger}attach(e){this._worker=e,this._worker.addEventListener("message",this._onMessageHandler),this._worker.addEventListener("error",this._onErrorHandler),this._worker.addEventListener("close",this._onCloseHandler),this._workerShutdownPromise=new Promise((r,t)=>{this._workerShutdownResolver=r})}detach(){this._worker&&(this._worker.removeEventListener("message",this._onMessageHandler),this._worker.removeEventListener("error",this._onErrorHandler),this._worker.removeEventListener("close",this._onCloseHandler),this._worker=null,this._workerShutdownResolver(null),this._workerShutdownPromise=null,this._workerShutdownResolver=()=>{})}async terminate(){this._worker&&(this._worker.terminate(),this._worker=null,this._workerShutdownPromise=null,this._workerShutdownResolver=()=>{})}async postTask(e,r=[]){if(!this._worker){console.error("cannot send a message since the worker is not set!");return}let t=this._nextMessageId++;return this._pendingRequests.set(t,e),this._worker.postMessage({messageId:t,type:e.type,data:e.data},r),await e.promise}onMessage(e){var o;let r=e.data;switch(r.type){case"LOG":{this._logger.log(r.data);return}case"INSTANTIATE_PROGRESS":{for(let i of this._onInstantiationProgress)i(r.data);return}}let t=this._pendingRequests.get(r.requestId);if(!t){console.warn("unassociated response: [".concat(r.requestId,", ").concat(r.type.toString(),"]"));return}if(this._pendingRequests.delete(r.requestId),r.type=="ERROR"){let i=new Error(r.data.message);i.name=r.data.name,(o=Object.getOwnPropertyDescriptor(i,"stack"))!=null&&o.writable&&(i.stack=r.data.stack),t.promiseRejecter(i);return}switch(t.type){case"CLOSE_PREPARED":case"COLLECT_FILE_STATISTICS":case"COPY_FILE_TO_PATH":case"DISCONNECT":case"DROP_FILE":case"DROP_FILES":case"FLUSH_FILES":case"INSERT_ARROW_FROM_IPC_STREAM":case"IMPORT_CSV_FROM_PATH":case"IMPORT_JSON_FROM_PATH":case"OPEN":case"PING":case"REGISTER_FILE_BUFFER":case"REGISTER_FILE_HANDLE":case"REGISTER_FILE_URL":case"RESET":if(r.type=="OK"){t.promiseResolver(r.data);return}break;case"INSTANTIATE":if(this._onInstantiationProgress=[],r.type=="OK"){t.promiseResolver(r.data);return}break;case"GLOB_FILE_INFOS":if(r.type=="FILE_INFOS"){t.promiseResolver(r.data);return}break;case"GET_VERSION":if(r.type=="VERSION_STRING"){t.promiseResolver(r.data);return}break;case"GET_FEATURE_FLAGS":if(r.type=="FEATURE_FLAGS"){t.promiseResolver(r.data);return}break;case"GET_TABLE_NAMES":if(r.type=="TABLE_NAMES"){t.promiseResolver(r.data);return}break;case"TOKENIZE":if(r.type=="SCRIPT_TOKENS"){t.promiseResolver(r.data);return}break;case"COPY_FILE_TO_BUFFER":if(r.type=="FILE_BUFFER"){t.promiseResolver(r.data);return}break;case"EXPORT_FILE_STATISTICS":if(r.type=="FILE_STATISTICS"){t.promiseResolver(r.data);return}break;case"CONNECT":if(r.type=="CONNECTION_INFO"){t.promiseResolver(r.data);return}break;case"RUN_PREPARED":case"RUN_QUERY":if(r.type=="QUERY_RESULT"){t.promiseResolver(r.data);return}break;case"SEND_PREPARED":if(r.type=="QUERY_RESULT_HEADER"){t.promiseResolver(r.data);return}break;case"START_PENDING_QUERY":if(r.type=="QUERY_RESULT_HEADER_OR_NULL"){t.promiseResolver(r.data);return}break;case"POLL_PENDING_QUERY":if(r.type=="QUERY_RESULT_HEADER_OR_NULL"){t.promiseResolver(r.data);return}break;case"CANCEL_PENDING_QUERY":if(this._onInstantiationProgress=[],r.type=="SUCCESS"){t.promiseResolver(r.data);return}break;case"FETCH_QUERY_RESULTS":if(r.type=="QUERY_RESULT_CHUNK"){t.promiseResolver(r.data);return}break;case"CREATE_PREPARED":if(r.type=="PREPARED_STATEMENT_ID"){t.promiseResolver(r.data);return}break}t.promiseRejecter(new Error("unexpected response type: ".concat(r.type.toString())))}onError(e){console.error(e),console.error("error in duckdb worker: ".concat(e.message)),this._pendingRequests.clear()}onClose(){if(this._workerShutdownResolver(null),this._pendingRequests.size!=0){console.warn("worker terminated with ".concat(this._pendingRequests.size," pending requests"));return}this._pendingRequests.clear()}async reset(){let e=new d("RESET",null);return await this.postTask(e)}async ping(){let e=new d("PING",null);await this.postTask(e)}async dropFile(e){let r=new d("DROP_FILE",e);return await this.postTask(r)}async dropFiles(){let e=new d("DROP_FILES",null);return await this.postTask(e)}async flushFiles(){let e=new d("FLUSH_FILES",null);return await this.postTask(e)}async instantiate(e,r=null,t=o=>{}){this._onInstantiationProgress.push(t);let o=new d("INSTANTIATE",[e,r]);return await this.postTask(o)}async getVersion(){let e=new d("GET_VERSION",null);return await this.postTask(e)}async getFeatureFlags(){let e=new d("GET_FEATURE_FLAGS",null);return await this.postTask(e)}async open(e){let r=new d("OPEN",e);await this.postTask(r)}async tokenize(e){let r=new d("TOKENIZE",e);return await this.postTask(r)}async connectInternal(){let e=new d("CONNECT",null);return await this.postTask(e)}async connect(){let e=await this.connectInternal();return new E(this,e)}async disconnect(e){let r=new d("DISCONNECT",e);await this.postTask(r)}async runQuery(e,r){let t=new d("RUN_QUERY",[e,r]);return await this.postTask(t)}async startPendingQuery(e,r){let t=new d("START_PENDING_QUERY",[e,r]);return await this.postTask(t)}async pollPendingQuery(e){let r=new d("POLL_PENDING_QUERY",e);return await this.postTask(r)}async cancelPendingQuery(e){let r=new d("CANCEL_PENDING_QUERY",e);return await this.postTask(r)}async fetchQueryResults(e){let r=new d("FETCH_QUERY_RESULTS",e);return await this.postTask(r)}async getTableNames(e,r){let t=new d("GET_TABLE_NAMES",[e,r]);return await this.postTask(t)}async createPrepared(e,r){let t=new d("CREATE_PREPARED",[e,r]);return await this.postTask(t)}async closePrepared(e,r){let t=new d("CLOSE_PREPARED",[e,r]);await this.postTask(t)}async runPrepared(e,r,t){let o=new d("RUN_PREPARED",[e,r,t]);return await this.postTask(o)}async sendPrepared(e,r,t){let o=new d("SEND_PREPARED",[e,r,t]);return await this.postTask(o)}async globFiles(e){let r=new d("GLOB_FILE_INFOS",e);return await this.postTask(r)}async registerFileText(e,r){let t=oe.encode(r);await this.registerFileBuffer(e,t)}async registerFileURL(e,r,t,o){r===void 0&&(r=e);let i=new d("REGISTER_FILE_URL",[e,r,t,o]);await this.postTask(i)}async registerEmptyFileBuffer(e){}async registerFileBuffer(e,r){let t=new d("REGISTER_FILE_BUFFER",[e,r]);await this.postTask(t,[r.buffer])}async registerFileHandle(e,r,t,o){let i=new d("REGISTER_FILE_HANDLE",[e,r,t,o]);await this.postTask(i,[])}async collectFileStatistics(e,r){let t=new d("COLLECT_FILE_STATISTICS",[e,r]);await 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w=class{constructor(){this._bindings=null;this._nextMessageId=0}log(e){this.postMessage({messageId:this._nextMessageId++,requestId:0,type:"LOG",data:e},[])}sendOK(e){this.postMessage({messageId:this._nextMessageId++,requestId:e.messageId,type:"OK",data:null},[])}failWith(e,r){let t={name:r.name,message:r.message,stack:r.stack||void 0};this.postMessage({messageId:this._nextMessageId++,requestId:e.messageId,type:"ERROR",data:t},[])}async onMessage(e){switch(e.type){case"PING":this.sendOK(e);return;case"INSTANTIATE":this._bindings!=null&&this.failWith(e,new Error("duckdb already initialized"));try{this._bindings=await this.instantiate(e.data[0],e.data[1],r=>{this.postMessage({messageId:this._nextMessageId++,requestId:e.messageId,type:"INSTANTIATE_PROGRESS",data:r},[])}),this.sendOK(e)}catch(r){console.log(r),this._bindings=null,this.failWith(e,r)}return;default:break}if(!this._bindings)return this.failWith(e,new Error("duckdb is not 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r=this._bindings.getTableNames(e.data[0],e.data[1]);this.postMessage({messageId:this._nextMessageId++,requestId:e.messageId,type:"TABLE_NAMES",data:r},[]);break}case"GLOB_FILE_INFOS":{let r=this._bindings.globFiles(e.data);this.postMessage({messageId:this._nextMessageId++,requestId:e.messageId,type:"FILE_INFOS",data:r},[]);break}case"REGISTER_FILE_URL":this._bindings.registerFileURL(e.data[0],e.data[1],e.data[2],e.data[3]),this.sendOK(e);break;case"REGISTER_FILE_BUFFER":this._bindings.registerFileBuffer(e.data[0],e.data[1]),this.sendOK(e);break;case"REGISTER_FILE_HANDLE":this._bindings.registerFileHandle(e.data[0],e.data[1],e.data[2],e.data[3]),this.sendOK(e);break;case"COPY_FILE_TO_PATH":this._bindings.copyFileToPath(e.data[0],e.data[1]),this.sendOK(e);break;case"COPY_FILE_TO_BUFFER":{let r=this._bindings.copyFileToBuffer(e.data);this.postMessage({messageId:this._nextMessageId++,requestId:e.messageId,type:"FILE_BUFFER",data:r},[]);break}case"COLLECT_FILE_STATISTICS":this._bindings.collectFileStatistics(e.data[0],e.data[1]),this.sendOK(e);break;case"EXPORT_FILE_STATISTICS":{this.postMessage({messageId:this._nextMessageId++,requestId:e.messageId,type:"FILE_STATISTICS",data:this._bindings.exportFileStatistics(e.data)},[]);break}case"INSERT_ARROW_FROM_IPC_STREAM":{this._bindings.insertArrowFromIPCStream(e.data[0],e.data[1],e.data[2]),this.sendOK(e);break}case"IMPORT_CSV_FROM_PATH":{this._bindings.insertCSVFromPath(e.data[0],e.data[1],e.data[2]),this.sendOK(e);break}case"IMPORT_JSON_FROM_PATH":{this._bindings.insertJSONFromPath(e.data[0],e.data[1],e.data[2]),this.sendOK(e);break}case"TOKENIZE":{let r=this._bindings.tokenize(e.data);this.postMessage({messageId:this._nextMessageId++,requestId:e.messageId,type:"SCRIPT_TOKENS",data:r},[]);break}}}catch(r){return 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de();if(e.wasmExceptions){if(e.wasmSIMD&&e.wasmThreads&&e.crossOriginIsolated&&s.coi)return{mainModule:s.coi.mainModule,mainWorker:s.coi.mainWorker,pthreadWorker:s.coi.pthreadWorker};if(s.eh)return{mainModule:s.eh.mainModule,mainWorker:s.eh.mainWorker,pthreadWorker:null}}return{mainModule:s.mvp.mainModule,mainWorker:s.mvp.mainWorker,pthreadWorker:null}}var Q=$(x());async function Ye(s){let e=new Request(s),r=await fetch(e),t=URL.createObjectURL(await r.blob());return new Q.default(t)}function ce(){let s=new TextDecoder;return e=>(typeof SharedArrayBuffer<"u"&&e.buffer instanceof SharedArrayBuffer&&(e=new Uint8Array(e)),s.decode(e))}var je=ce();var q=(n=>(n[n.BUFFER=0]="BUFFER",n[n.NODE_FS=1]="NODE_FS",n[n.BROWSER_FILEREADER=2]="BROWSER_FILEREADER",n[n.BROWSER_FSACCESS=3]="BROWSER_FSACCESS",n[n.HTTP=4]="HTTP",n[n.S3=5]="S3",n))(q||{});export{O as AsyncDuckDB,E as AsyncDuckDBConnection,w as AsyncDuckDBDispatcher,b as AsyncPreparedStatement,p as AsyncResultStreamIterator,P as 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