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Commitfca9fff

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More README src cleanups.
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‎src/backend/access/heap/README.HOT‎

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$PostgreSQL: pgsql/src/backend/access/heap/README.HOT,v 1.2 2007/09/2121:25:42 tgl Exp $
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$PostgreSQL: pgsql/src/backend/access/heap/README.HOT,v 1.3 2008/03/2113:23:27 momjian Exp $
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Heap Only Tuples (HOT)
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Introduction
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------------
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Heap Only Tuples (HOT)
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======================
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The Heap Only Tuple (HOT) feature eliminates redundant index entries and
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allows the re-use of space taken by DELETEd or obsoleted UPDATEd tuples

‎src/backend/access/nbtree/README‎

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$PostgreSQL: pgsql/src/backend/access/nbtree/README,v 1.19 2008/03/20 17:55:14 momjian Exp $
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$PostgreSQL: pgsql/src/backend/access/nbtree/README,v 1.20 2008/03/21 13:23:27 momjian Exp $
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Btree Indexing
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==============
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This directory contains a correct implementation of Lehman and Yao's
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high-concurrency B-tree management algorithm (P. Lehman and S. Yao,

‎src/backend/access/transam/README‎

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$PostgreSQL: pgsql/src/backend/access/transam/README,v 1.10 2008/03/20 17:55:14 momjian Exp $
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$PostgreSQL: pgsql/src/backend/access/transam/README,v 1.11 2008/03/21 13:23:28 momjian Exp $
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The Transaction System
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======================
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PostgreSQL's transaction system is a three-layer system. The bottom layer
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implements low-level transactions and subtransactions, on top of which rests

‎src/backend/catalog/README‎

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$PostgreSQL: pgsql/src/backend/catalog/README,v 1.12 2008/03/20 17:55:14 momjian Exp $
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System Catalog
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==============
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This directory contains .c files that manipulate the system catalogs;
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src/include/catalog contains the .h files that define the structure

‎src/backend/executor/README‎

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$PostgreSQL: pgsql/src/backend/executor/README,v 1.6 2008/03/20 17:55:14 momjian Exp $
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The Postgres Executor
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=====================
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The executor processes a tree of "plan nodes". The plan tree is essentially
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a demand-pull pipeline of tuple processing operations. Each node, when

‎src/backend/libpq/README.SSL‎

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$PostgreSQL: pgsql/src/backend/libpq/README.SSL,v 1.6 2008/03/21 13:23:28 momjian Exp $
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SSL
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===
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>From the servers perspective:
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‎src/backend/optimizer/README‎

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Optimizer
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=========
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These directories take the Query structure returned by the parser, and
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generate a plan used by the executor. The /plan directory generates the

‎src/backend/optimizer/plan/README‎

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$PostgreSQL: pgsql/src/backend/optimizer/plan/README,v 1.3 2008/03/21 13:23:28 momjian Exp $
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Subselects
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==========
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Vadim B. Mikheev
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by candle.pha.pa.us (8.8.5/8.8.5) with ESMTP id JAA11576
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‎src/backend/parser/README‎

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Parser
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This directory does more than tokenize and parse SQL queries. It also
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creates Query structures for the various complex queries that are passed

‎src/backend/port/darwin/README‎

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$PostgreSQL: pgsql/src/backend/port/darwin/README,v 1.4 2008/03/20 17:55:14 momjian Exp $
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Darwin
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The file system.c included herein is taken directly from Apple's Darwin
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open-source CVS archives, and is redistributed under the BSD copyright

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