SQL explain plan: what is Materialize?

Posted by Claudiu on Stack Overflow See other posts from Stack Overflow or by Claudiu
Published on 2010-06-12T19:25:38Z Indexed on 2010/06/12 19:33 UTC
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Filed under:

sql

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postgresql

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explain-plan

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materialize

I asked PostgreSQL to explain my query. Part of the explanation was:

table_name --> Materialize

What does materialize do? I'm joining two tables, not views or anything like that.

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