我正在尝试通过Data Pipeline在Redshift上执行卸载命令。该脚本类似于：
return (
<MapView
style={ styles.map }
onRegionChangeComplete={onRegionChangeComplete}
region={this.state.mapRegion}
annotations={this.state.annotations}
zoomEnabled={true}
showsUserLocation={true}
>
{this.state.markers.map(marker => (
<MapView.Marker
coordinate={marker.coordinates}
title={marker.title}
/>
))}
</MapView>
);管道看起来像这样：
unload ($$ SELECT *, count(*) FROM (SELECT APP_ID, CAST(record_date AS DATE) WHERE len(APP_ID)>0 AND CAST(record_date as DATE)=$1) GROUP BY APP_ID $$) to 's3://test/unload/' iam_role 'arn:aws:iam::xxxxxxxxxxx:role/Test' delimiter ',' addquotes;
但是，我一直收到错误：列索引超出范围：1，列数：0。
我无法让它发挥作用。我尝试过使用{
"objects": [
{
"role": "DataPipelineDefaultRole",
"subject": "SuccessNotification",
"name": "SNS",
"id": "ActionId_xxxxx”,
"message": "SUCCESS: #{format(minusDays(node.@scheduledStartTime,1),'MM-dd-YYYY')}",
"type": "SnsAlarm",
"topicArn": "arn:aws:sns:us-west-2:xxxxxxxxxx:notification"
},
{
"connectionString": “connection-url”,
"password": “password”,
"name": “Test”,
"id": "DatabaseId_xxxxx”,
"type": "RedshiftDatabase",
"username": “username”
},
{
"subnetId": "subnet-xxxxxx”,
"resourceRole": "DataPipelineDefaultResourceRole",
"role": "DataPipelineDefaultRole",
"name": "EC2",
"id": "ResourceId_xxxxx”,
"type": "Ec2Resource"
},
{
"failureAndRerunMode": "CASCADE",
"resourceRole": "DataPipelineDefaultResourceRole",
"role": "DataPipelineDefaultRole",
"pipelineLogUri": "s3://test/logs/",
"scheduleType": "ONDEMAND",
"name": "Default",
"id": "Default"
},
{
"database": {
"ref": "DatabaseId_xxxxxx”
},
"scriptUri": "s3://test/script.sql",
"name": "SqlActivity",
"scriptArgument": "#{format(minusDays(node.@scheduledStartTime,1),"MM-dd-YYYY”)}”,
"id": "SqlActivityId_xxxxx”,
"runsOn": {
"ref": "ResourceId_xxxx”
},
"type": "SqlActivity",
"onSuccess": {
"ref": "ActionId_xxxxx”
}
}
],
"parameters": []
}
，?，我甚至尝试将表达式$1直接放在脚本中。它们都不起作用。
我查看了Amazon Data Pipline: How to use a script argument in a SqlActivity?的答案，但没有一个是有帮助的。
有没有人知道如何在AWS Data Pipeline的SQL Script中使用脚本参数？