@duckdb/duckdb-wasm/dist/duckdb-node.cjs

DuckDB powered by WebAssembly

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this}},y=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=p.RecordBatchReader.from(r);return console.assert(t.isSync()),console.assert(t.isFile()),new p.Table(t)}async send(...e){let r=await this.bindings.sendPrepared(this.connectionId,this.statementId,e),t=new b(this.bindings,this.connectionId,r),n=await p.RecordBatchReader.from(t);return console.assert(n.isAsync()),console.assert(n.isStream()),n}};var D=(l=>(l.CANCEL_PENDING_QUERY="CANCEL_PENDING_QUERY",l.CLOSE_PREPARED="CLOSE_PREPARED",l.COLLECT_FILE_STATISTICS="COLLECT_FILE_STATISTICS",l.REGISTER_OPFS_FILE_NAME="REGISTER_OPFS_FILE_NAME",l.CONNECT="CONNECT",l.COPY_FILE_TO_BUFFER="COPY_FILE_TO_BUFFER",l.COPY_FILE_TO_PATH="COPY_FILE_TO_PATH",l.CREATE_PREPARED="CREATE_PREPARED",l.DISCONNECT="DISCONNECT",l.DROP_FILE="DROP_FILE",l.DROP_FILES="DROP_FILES",l.EXPORT_FILE_STATISTICS="EXPORT_FILE_STATISTICS",l.FETCH_QUERY_RESULTS="FETCH_QUERY_RESULTS",l.FLUSH_FILES="FLUSH_FILES",l.GET_FEATURE_FLAGS="GET_FEATURE_FLAGS",l.GET_TABLE_NAMES="GET_TABLE_NAMES",l.GET_VERSION="GET_VERSION",l.GLOB_FILE_INFOS="GLOB_FILE_INFOS",l.INSERT_ARROW_FROM_IPC_STREAM="INSERT_ARROW_FROM_IPC_STREAM",l.INSERT_CSV_FROM_PATH="IMPORT_CSV_FROM_PATH",l.INSERT_JSON_FROM_PATH="IMPORT_JSON_FROM_PATH",l.INSTANTIATE="INSTANTIATE",l.OPEN="OPEN",l.PING="PING",l.POLL_PENDING_QUERY="POLL_PENDING_QUERY",l.REGISTER_FILE_BUFFER="REGISTER_FILE_BUFFER",l.REGISTER_FILE_HANDLE="REGISTER_FILE_HANDLE",l.REGISTER_FILE_URL="REGISTER_FILE_URL",l.RESET="RESET",l.RUN_PREPARED="RUN_PREPARED",l.RUN_QUERY="RUN_QUERY",l.SEND_PREPARED="SEND_PREPARED",l.START_PENDING_QUERY="START_PENDING_QUERY",l.TOKENIZE="TOKENIZE",l))(D||{}),O=(d=>(d.CONNECTION_INFO="CONNECTION_INFO",d.ERROR="ERROR",d.FEATURE_FLAGS="FEATURE_FLAGS",d.FILE_BUFFER="FILE_BUFFER",d.FILE_INFOS="FILE_INFOS",d.FILE_SIZE="FILE_SIZE",d.FILE_STATISTICS="FILE_STATISTICS",d.INSTANTIATE_PROGRESS="INSTANTIATE_PROGRESS",d.LOG="LOG",d.PROGRESS_UPDATE="PROGRESS_UPDATE",d.OK="OK",d.PREPARED_STATEMENT_ID="PREPARED_STATEMENT_ID",d.QUERY_PLAN="QUERY_PLAN",d.QUERY_RESULT="QUERY_RESULT",d.QUERY_RESULT_CHUNK="QUERY_RESULT_CHUNK",d.QUERY_RESULT_HEADER="QUERY_RESULT_HEADER",d.QUERY_RESULT_HEADER_OR_NULL="QUERY_RESULT_HEADER_OR_NULL",d.REGISTERED_FILE="REGISTERED_FILE",d.SCRIPT_TOKENS="SCRIPT_TOKENS",d.SUCCESS="SUCCESS",d.TABLE_NAMES="TABLE_NAMES",d.VERSION_STRING="VERSION_STRING",d))(O||{}),i=class{constructor(e,r){this.promiseResolver=()=>{};this.promiseRejecter=()=>{};this.type=e,this.data=r,this.promise=new 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c.Type.TimestampMicrosecond:return{sqlType:"timestamp[us]",timezone:s.timezone||void 0};case c.Type.TimestampNanosecond:return{sqlType:"timestamp[ns]",timezone:s.timezone||void 0};case c.Type.TimestampMillisecond:return{sqlType:"timestamp[ms]",timezone:s.timezone||void 0}}throw new Error(`unsupported arrow type: ${s.toString()}`)}function S(s,e){let r=k(e);return r.name=s,r}var fe=/'(opfs:\/\/\S*?)'/g,Ae=/(opfs:\/\/\S*?)/g;function ee(s){return s.search(Ae)>-1}function re(s){return[...s.matchAll(fe)].map(e=>e[1])}var De=new TextEncoder,L=class{constructor(e,r=null){this._onInstantiationProgress=[];this._onExecutionProgress=[];this._worker=null;this._workerShutdownPromise=null;this._workerShutdownResolver=()=>{};this._nextMessageId=0;this._pendingRequests=new Map;this._config={};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}get config(){return this._config}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!:"+e.type+","+e.data);return}let t=this._nextMessageId++;return 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Error(`unexpected response type: ${r.type.toString()}`))}onError(e){console.error(e),console.error(`error in duckdb worker: ${e.message}`),this._pendingRequests.clear()}onClose(){if(this._workerShutdownResolver(null),this._pendingRequests.size!=0){console.warn(`worker terminated with ${this._pendingRequests.size} pending requests`);return}this._pendingRequests.clear()}isDetached(){return!this._worker}async reset(){let e=new i("RESET",null);return await this.postTask(e)}async ping(){let e=new i("PING",null);await this.postTask(e)}async dropFile(e){let r=new i("DROP_FILE",e);return await this.postTask(r)}async dropFiles(e){let r=new i("DROP_FILES",e);return await this.postTask(r)}async flushFiles(){let e=new i("FLUSH_FILES",null);return await this.postTask(e)}async instantiate(e,r=null,t=n=>{}){this._onInstantiationProgress.push(t);let n=new i("INSTANTIATE",[e,r]);return await this.postTask(n)}async getVersion(){let e=new i("GET_VERSION",null);return await this.postTask(e)}async 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