TSQL: left join on view very slow?

The view expands into the main query. S So if you have 5 tables in the view, these expand with the extra table into one big query plan with 6 tables. The performance difference will most likely be caused by added complexity and permutations of the extra table you left join with Another potential issue: Do you then left join on a column that has some processing on it?

This will further kill performance.

The view expands into the main query. S So if you have 5 tables in the view, these expand with the extra table into one big query plan with 6 tables. The performance difference will most likely be caused by added complexity and permutations of the extra table you left join with.

Another potential issue: Do you then left join on a column that has some processing on it? This will further kill performance.

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