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From rhille...@apache.org
Subject svn commit: r1141651 - in /db/derby/docs/branches/10.8/src/ref: crefproper22250.dita refderby.ditamap rrefproperpreallocator.dita rrefsqlj37836.dita rrefsqljcreatesequence.dita
Date Thu, 30 Jun 2011 18:26:49 GMT
Author: rhillegas
Date: Thu Jun 30 18:26:48 2011
New Revision: 1141651

URL: http://svn.apache.org/viewvc?rev=1141651&view=rev
Log:
DERBY-5307: Port 1141568 from trunk docs to 10.8 docs.

Added:
    db/derby/docs/branches/10.8/src/ref/rrefproperpreallocator.dita
      - copied unchanged from r1141568, db/derby/docs/trunk/src/ref/rrefproperpreallocator.dita
Modified:
    db/derby/docs/branches/10.8/src/ref/crefproper22250.dita
    db/derby/docs/branches/10.8/src/ref/refderby.ditamap
    db/derby/docs/branches/10.8/src/ref/rrefsqlj37836.dita
    db/derby/docs/branches/10.8/src/ref/rrefsqljcreatesequence.dita

Modified: db/derby/docs/branches/10.8/src/ref/crefproper22250.dita
URL: http://svn.apache.org/viewvc/db/derby/docs/branches/10.8/src/ref/crefproper22250.dita?rev=1141651&r1=1141650&r2=1141651&view=diff
==============================================================================
--- db/derby/docs/branches/10.8/src/ref/crefproper22250.dita (original)
+++ db/derby/docs/branches/10.8/src/ref/crefproper22250.dita Thu Jun 30 18:26:48 2011
@@ -193,6 +193,11 @@ about when changes to the property are d
 <entry colname="3">Static</entry>
 </row>
 <row>
+<entry colname="1"><i><xref href="rrefproperpreallocator.dita#rrefproperpreallocator">derby.language.sequence.preallocator</xref></i></entry>
+<entry colname="2">S, D</entry>
+<entry colname="3">Static</entry>
+</row>
+<row>
 <entry colname="1"><i><xref href="rrefproper10607.dita#rrefproper10607">derby.locks.deadlockTimeout</xref></i></entry>
 <entry colname="2">S, D</entry>
 <entry colname="3">Dynamic</entry>

Modified: db/derby/docs/branches/10.8/src/ref/refderby.ditamap
URL: http://svn.apache.org/viewvc/db/derby/docs/branches/10.8/src/ref/refderby.ditamap?rev=1141651&r1=1141650&r2=1141651&view=diff
==============================================================================
--- db/derby/docs/branches/10.8/src/ref/refderby.ditamap (original)
+++ db/derby/docs/branches/10.8/src/ref/refderby.ditamap Thu Jun 30 18:26:48 2011
@@ -750,6 +750,7 @@ URL syntax"></topicref>
 </topicref>
 <topicref href="rrefproper43517.dita" navtitle="derby.language.logStatementText">
 </topicref>
+<topicref href="rrefproperpreallocator.dita" navtitle="derby.language.sequence.preallocator"></topicref>
 <topicref href="rrefproper10607.dita" navtitle="derby.locks.deadlockTimeout">
 </topicref>
 <topicref href="rrefproper23835.dita" navtitle="derby.locks.deadlockTrace">

Modified: db/derby/docs/branches/10.8/src/ref/rrefsqlj37836.dita
URL: http://svn.apache.org/viewvc/db/derby/docs/branches/10.8/src/ref/rrefsqlj37836.dita?rev=1141651&r1=1141650&r2=1141651&view=diff
==============================================================================
--- db/derby/docs/branches/10.8/src/ref/rrefsqlj37836.dita (original)
+++ db/derby/docs/branches/10.8/src/ref/rrefsqlj37836.dita Thu Jun 30 18:26:48 2011
@@ -156,6 +156,19 @@ T2's insert, but T2 can see the value ca
 level can see increment values generated by itself and previous nesting levels,
 all the way to the top-level SQL statement that initiated the recursive triggers.
 You can only have 16 levels of trigger recursion.</p> </section>
+
+<section>
+<title>Performance</title>
+<p>
+To boost performance and concurrency,
+<ph conref="../conrefs.dita#prod/productshortname"></ph>
+preallocates ranges of upcoming values for sequences and identity columns. The lengths of
these ranges
+can be configured by adjusting the value of the
+<xref href="rrefproperpreallocator.dita#rrefproperpreallocator">derby.language.sequence.preallocator</xref>
+property.
+</p>
+</section>
+
 <section><title>Example</title><codeblock>create table greetings
   (i int generated by default as identity (START WITH 2, INCREMENT BY 1),
   ch char(50));

Modified: db/derby/docs/branches/10.8/src/ref/rrefsqljcreatesequence.dita
URL: http://svn.apache.org/viewvc/db/derby/docs/branches/10.8/src/ref/rrefsqljcreatesequence.dita?rev=1141651&r1=1141650&r2=1141651&view=diff
==============================================================================
--- db/derby/docs/branches/10.8/src/ref/rrefsqljcreatesequence.dita (original)
+++ db/derby/docs/branches/10.8/src/ref/rrefsqljcreatesequence.dita Thu Jun 30 18:26:48 2011
@@ -87,6 +87,18 @@ exception when the generator wraps aroun
 expression</xref>.
 </p></section>
 
+<section>
+<title>Performance</title>
+<p>
+To boost performance and concurrency,
+<ph conref="../conrefs.dita#prod/productshortname"></ph>
+preallocates ranges of upcoming values for sequences and identity columns. The lengths of
these ranges
+can be configured by adjusting the value of the
+<xref href="rrefproperpreallocator.dita#rrefproperpreallocator">derby.language.sequence.preallocator</xref>
+property.
+</p>
+</section>
+
 <example><title>Examples</title>
 <p>The following statement creates a sequence generator of type INT, with a
 start value of -2147483648 (the smallest INT value). The value increases by 1,



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