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@ -8,7 +8,7 @@ |
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<body bgcolor="#FFFFFF" text="#000000" link="#FF0000" vlink="#A00000" alink="#0000FF"> |
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<h1><a name="section_1">PostgreSQL TODO List</a></h1> |
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<p>Current maintainer: Bruce Momjian (<a href="mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</a>)<br/> |
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Last updated: Thu Dec 1 17:07:44 EST 2005 |
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Last updated: Thu Dec 1 17:12:27 EST 2005 |
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</p> |
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<p>The most recent version of this document can be viewed at<br/> |
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<a href="http://www.postgresql.org/docs/faqs.TODO.html">http://www.postgresql.org/docs/faqs.TODO.html</a>. |
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@ -340,11 +340,13 @@ first. |
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</p> |
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</li><li>Add a GUC variable to warn about non-standard SQL usage in queries |
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</li><li>Add SQL-standard MERGE command, typically used to merge two tables |
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[<a href="http://momjian.postgresql.org/cgi-bin/pgtodo?merge">merge</a>] |
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<p> This is similar to UPDATE, then for unmatched rows, INSERT. |
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Whether concurrent access allows modifications which could cause |
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row loss is implementation independent. |
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</p> |
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</li><li>Add REPLACE or UPSERT command that does UPDATE, or on failure, INSERT |
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[<a href="http://momjian.postgresql.org/cgi-bin/pgtodo?merge">merge</a>] |
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<p> To implement this cleanly requires that the table have a unique index |
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so duplicate checking can be easily performed. It is possible to |
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do it without a unique index if we require the user to LOCK the table |
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