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Postgres FD Implementation
Commit 4dc2bcee authored by Bruce Momjian's avatar Bruce Momjian
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Mark IN performance problem as fixed in 7.4

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doc/FAQ
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Frequently Asked Questions (FAQ) for PostgreSQL Frequently Asked Questions (FAQ) for PostgreSQL
Last updated: Fri Jan 17 12:15:04 EST 2003 Last updated: Sat Jan 25 21:43:37 EST 2003
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us) Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
...@@ -1015,8 +1015,8 @@ CREATE TABLE test (x int, modtime timestamp DEFAULT CURRENT_TIMESTAMP ); ...@@ -1015,8 +1015,8 @@ CREATE TABLE test (x int, modtime timestamp DEFAULT CURRENT_TIMESTAMP );
FROM tab FROM tab
WHERE EXISTS (SELECT subcol FROM subtab WHERE subcol = col); WHERE EXISTS (SELECT subcol FROM subtab WHERE subcol = col);
For this to be fast, subcol should be an indexed column. We hope to For this to be fast, subcol should be an indexed column. This
fix this limitation in a future release. preformance problem will be fixed in 7.4.
4.23) How do I perform an outer join? 4.23) How do I perform an outer join?
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