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Execute the script and show the output as table. After some time, you should see only auctions opened by the seller with the id 1
In this script you define a SELECT-Operator. In Procedural Query Language (PQL) each operator is identified by a name. Inside the operator there are two parts. The first part is the configuration inbetween "{" and "}". The seconds part is the source part, i.e. here the sources are listed that should deliver the input.
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If you look at the query plan, you will see, the following
The filter step is done by the top most operator Select.
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| Code Block |
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out = MAP({EXPRESSIONS=['id',['id+id','DoubleId'],['dolToEur(initialbid)','Bid €']]},nexmark:auction) |
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