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@ -1,7 +1,7 @@ |
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Frequently Asked Questions (FAQ) for PostgreSQL |
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Last updated: Sat Jan 29 23:04:53 EST 2005 |
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Last updated: Sat Jan 29 23:06:02 EST 2005 |
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Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us) |
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@ -56,7 +56,7 @@ |
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4.4) What is the maximum size for a row, a table, and a database? |
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4.5) How much database disk space is required to store data from a |
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typical text file? |
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4.6) Why are my queries slow? Why don't they make use of indexes? |
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4.6) Why are my queries slow? Why don't they use my indexes? |
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4.7) How do I see how the query optimizer is evaluating my query? |
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4.8) What is an R-tree index? |
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4.9) What is the Genetic Query Optimizer? |
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@ -683,7 +683,7 @@ log_* |
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NULLs are stored as bitmaps, so they use very little space. |
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4.6) Why are my queries slow? Why don't they make use of indexes? |
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4.6) Why are my queries slow? Why don't they use my indexes? |
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Indexes are not automatically used by every query. Indexes are only |
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used if the table is larger than a minimum size, and the query selects |
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