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db2 udb DB2 Development forum discussing administration, DB2 queries, SQL/PL, and other DB2-related topics. Covers the entire DB2 line, including UDB (DB2 for Unix and Linux), midrange (AS/400) and mainframe versions.

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Old June 4th, 2003, 08:43 PM
tsantosh_kumar tsantosh_kumar is offline
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Question db2 udb
How do I identify in a VISUAL EXPLAIN graph that intra-partition parallelism is being used in access plan?
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Old June 8th, 2003, 08:18 AM
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There are some examples of db2expln output in the Administration Guide. This isn't exactly the same as Visual Explain, but it should give you an idea of what to look for:

http://webdocs.caspur.it/ibm/web/ud...5.htm#HDREXPXX2

Also from the DB2 Visual Explain help documentation comes the following:
Operator name: TQUEUE

Represents: A table queue that is used to pass table data from one database agent to another when there are multiple database agents processing a query. Multiple database agents are used to process a query when parallelism is involved.

Table queue types are:

* Local: The table queue is used to pass data between database agents within a single node. A local table queue is used for intra-partition parallelism.

http://sp81.msi.umn.edu:999/DB2/db2...ndex.htm#cncpve
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Old February 25th, 2008, 03:10 PM
db2udb_system db2udb_system is offline
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Please disregard it -- trying to understand how to start posting here. THanks.
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