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extremely long parse time

From: Adams, Matthew (GEA, MABG, 088130) <MATT.ADAMS_at_APPL.GE.COM>
Date: Thu, 26 Sep 2002 09:29:52 -0800
Message-ID: <F001.004DA39C.20020926092952@fatcity.com>


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why would a query take 148 seconds to
parse? It is a two way union
where the first half is going against all_tables and the second half is a join
between all_indexes and all_ind_columns.

The shared pool has 50M large parts of it are free. I generated a 10046 (level 12) trace, and I just don't see anything out of whack, except of the c=14868 in the PARSE #1 line.



Matt Adams - GE Appliances - matt.adams_at_appl.ge.com Their fundamental design flaws are completely hidden by their superficial design flaws.

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<P><FONT SIZE=2>why would a query take 148 seconds to </FONT>
<BR><FONT SIZE=2>parse?&nbsp; It is a two way union </FONT>
<BR><FONT SIZE=2>where the first half is going against all_tables</FONT>
<BR><FONT SIZE=2>and the second half is a join </FONT>
<BR><FONT SIZE=2>between all_indexes and all_ind_columns.</FONT>
</P>

<P><FONT SIZE=2>The shared pool has 50M large parts of it are</FONT>
<BR><FONT SIZE=2>free.&nbsp; I generated a 10046 (level 12) trace, and I just </FONT>
<BR><FONT SIZE=2>don't see anything out of whack, except of the </FONT>
<BR><FONT SIZE=2>c=14868 in the PARSE #1 line.</FONT>
</P>
<BR>
<BR>

<P><FONT SIZE=2>----</FONT>
<BR><FONT SIZE=2>Matt Adams - GE Appliances - matt.adams_at_appl.ge.com</FONT>
<BR><FONT SIZE=2>Their fundamental design flaws are completely</FONT>
<BR><FONT SIZE=2>hidden by their superficial design flaws.</FONT>
<BR><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; - Douglas Adams</FONT>
</P>

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Author: Adams, Matthew (GEA, MABG, 088130)
  INET: MATT.ADAMS_at_APPL.GE.COM

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Received on Thu Sep 26 2002 - 12:29:52 CDT

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