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Commit7f61f8a

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Update.
1 parente0058b6 commit7f61f8a

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‎src/tools/backend/index.html

Lines changed: 32 additions & 34 deletions
Original file line numberDiff line numberDiff line change
@@ -10,7 +10,39 @@ <H2 ALIGN=CENTER>
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by Bruce Momjian
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</H2>
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<P>
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<CENTER>
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<EM><BIG>
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Click on an item to see more detail or look at the full
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<AHREF="backend_dirs.html">index.</A>
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</BIG></EM>
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<BR>
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<BR>
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<IMGsrc="flow.jpg"usemap="#flowmap"alt="flowchart">
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</CENTER>
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<MAPname="flowmap">
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<AREACOORDS="290,10,450,50"HREF="backend_dirs.html#main">
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<AREACOORDS="550,10,710,50"HREF="backend_dirs.html#bootstrap">
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<AREACOORDS="290,90,450,130,"HREF="backend_dirs.html#postmaster">
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<AREACOORDS="550,90,710,130,"HREF="backend_dirs.html#libpq">
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<AREACOORDS="290,170,450,210"HREF="backend_dirs.html#tcop">
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<AREACOORDS="550,170,710,210"HREF="backend_dirs.html#tcop">
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<AREACOORDS="290,270,450,310"HREF="backend_dirs.html#parser">
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<AREACOORDS="290,350,450,390"HREF="backend_dirs.html#tcop">
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<AREACOORDS="290,430,450,470"HREF="backend_dirs.html#optimizer">
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<AREACOORDS="290,510,450,550"HREF="backend_dirs.html#optimizer/plan">
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<AREACOORDS="290,570,450,630"HREF="backend_dirs.html#executor">
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<AREACOORDS="550,350,710,390"HREF="backend_dirs.html#commands">
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<AREACOORDS="10,330,170,370"HREF="backend_dirs.html#access">
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<AREACOORDS="10,390,170,430"HREF="backend_dirs.html#catalog">
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<AREACOORDS="10,450,170,490"HREF="backend_dirs.html#utils">
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<AREACOORDS="10,510,170,550"HREF="backend_dirs.html#nodes">
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<AREACOORDS="10,570,170,610"HREF="backend_dirs.html#storage">
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</MAP>
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<BR>
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<P>
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<HR>
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<P>
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A query comes to the backend via data packets arriving through TCP/IP
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or Unix Domain sockets. It is loaded into a string, and passed to
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the
@@ -87,40 +119,6 @@ <H2 ALIGN=CENTER>
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<HR>
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<P>
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<CENTER>
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<EM><BIG>
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Click on an item to see more detail or look at the full
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<AHREF="backend_dirs.html">index.</A>
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</BIG></EM>
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<BR>
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<BR>
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<IMGsrc="flow.jpg"usemap="#flowmap"alt="flowchart">
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</CENTER>
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<MAPname="flowmap">
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<AREACOORDS="290,10,450,50"HREF="backend_dirs.html#main">
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<AREACOORDS="550,10,710,50"HREF="backend_dirs.html#bootstrap">
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<AREACOORDS="290,90,450,130,"HREF="backend_dirs.html#postmaster">
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<AREACOORDS="550,90,710,130,"HREF="backend_dirs.html#libpq">
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<AREACOORDS="290,170,450,210"HREF="backend_dirs.html#tcop">
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<AREACOORDS="550,170,710,210"HREF="backend_dirs.html#tcop">
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<AREACOORDS="290,270,450,310"HREF="backend_dirs.html#parser">
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<AREACOORDS="290,350,450,390"HREF="backend_dirs.html#tcop">
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<AREACOORDS="290,430,450,470"HREF="backend_dirs.html#optimizer">
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<AREACOORDS="290,510,450,550"HREF="backend_dirs.html#optimizer/plan">
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<AREACOORDS="290,570,450,630"HREF="backend_dirs.html#executor">
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<AREACOORDS="550,350,710,390"HREF="backend_dirs.html#commands">
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<AREACOORDS="10,330,170,370"HREF="backend_dirs.html#access">
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<AREACOORDS="10,390,170,430"HREF="backend_dirs.html#catalog">
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<AREACOORDS="10,450,170,490"HREF="backend_dirs.html#utils">
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<AREACOORDS="10,510,170,550"HREF="backend_dirs.html#nodes">
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<AREACOORDS="10,570,170,610"HREF="backend_dirs.html#storage">
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</MAP>
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<BR>
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<P>
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<HR>
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<P>
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Another area of interest is the shared memory area, which contains data
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accessable to all backends. It has table recently used data/index
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blocks, locks, backend information, and lookup tables for these

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