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Table Spool Showplan Operator

The Table Spool operator scans the input and places a copy of each row in a hidden spool table that is stored in the tempdb database and existing only for the lifetime of the query. If the operator is rewound (for example, by a Nested Loops operator) but no rebinding is needed, the spooled data is used instead of rescanning the input.

Table Spool is a physical operator.

Table spool operator icon Graphical execution plan icon

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