Split out MERGE and REPLACE/UPSERT items.

< * Add MERGE command that does UPDATE/DELETE, or on failure, INSERT (rules, < triggers?) > * Add SQL-standard MERGE command, typically used to merge two tables > > This is similar to UPDATE, then for unmatched rows, INSERT. > Whether concurrent access allows modifications which could cause > row loss is implementation independent. > > * Add REPLACE or UPSERT command that does UPDATE, or on failure, INSERT

Split out MERGE and REPLACE/UPSERT items.
< * Add MERGE command that does UPDATE/DELETE, or on failure, INSERT (rules, < triggers?) > * Add SQL-standard MERGE command, typically used to merge two tables > > This is similar to UPDATE, then for unmatched rows, INSERT. > Whether concurrent access allows modifications which could cause > row loss is implementation independent. > > * Add REPLACE or UPSERT command that does UPDATE, or on failure, INSERT
24e1a045 · Bruce Momjian · 8c8c0108 · 24e1a045 · 24e1a045
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Showing with 15 addition and 6 deletion

doc/TODO doc/TODO +8 -3

doc/src/FAQ/TODO.html doc/src/FAQ/TODO.html +7 -3

未找到文件。
--- a/doc/TODO
+++ b/doc/TODO
@@ -2,7 +2,7 @@
 PostgreSQL TODO List
 ====================
 Current maintainer:	Bruce Momjian (pgman@candle.pha.pa.us)
-Last updated:		Mon Nov 28 21:02:36 EST 2005
+Last updated:		Thu Dec  1 17:07:44 EST 2005

 The most recent version of this document can be viewed at
 http://www.postgresql.org/docs/faqs.TODO.html.
@@ -369,8 +369,13 @@ SQL Commands
  information.

 * Add a GUC variable to warn about non-standard SQL usage in queries
-* Add MERGE command that does UPDATE/DELETE, or on failure, INSERT (rules,
-  triggers?)
+* Add SQL-standard MERGE command, typically used to merge two tables
+
+  This is similar to UPDATE, then for unmatched rows, INSERT.
+  Whether concurrent access allows modifications which could cause
+  row loss is implementation independent.
+
+* Add REPLACE or UPSERT command that does UPDATE, or on failure, INSERT

  To implement this cleanly requires that the table have a unique index
  so duplicate checking can be easily performed.  It is possible to

--- a/doc/src/FAQ/TODO.html
+++ b/doc/src/FAQ/TODO.html
@@ -8,7 +8,7 @@
 <body bgcolor="#FFFFFF" text="#000000" link="#FF0000" vlink="#A00000" alink="#0000FF">
 <h1><a name="section_1">PostgreSQL TODO List</a></h1>
 <p>Current maintainer:     Bruce Momjian (<a href="mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</a>)<br/>
-Last updated:           Mon Nov 28 21:02:36 EST 2005
+Last updated:           Thu Dec  1 17:07:44 EST 2005
 </p>
 <p>The most recent version of this document can be viewed at<br/>
 <a href="http://www.postgresql.org/docs/faqs.TODO.html">http://www.postgresql.org/docs/faqs.TODO.html</a>.
@@ -339,8 +339,12 @@ first.
  information.
 </p>
  </li><li>Add a GUC variable to warn about non-standard SQL usage in queries
-  </li><li>Add MERGE command that does UPDATE/DELETE, or on failure, INSERT (rules,
-  triggers?)
+  </li><li>Add SQL-standard MERGE command, typically used to merge two tables
+<p>  This is similar to UPDATE, then for unmatched rows, INSERT.
+  Whether concurrent access allows modifications which could cause
+  row loss is implementation independent.
+</p>
+  </li><li>Add REPLACE or UPSERT command that does UPDATE, or on failure, INSERT
 <p>  To implement this cleanly requires that the table have a unique index
  so duplicate checking can be easily performed.  It is possible to
  do it without a unique index if we require the user to LOCK the table