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>Database Physical Storage</TITLE
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>Chapter 56. Database Physical Storage</H1
><DIV
CLASS="TOC"
><DL
><DT
><B
>Table of Contents</B
></DT
><DT
>56.1. <A
HREF="storage-file-layout.html"
>Database File Layout</A
></DT
><DT
>56.2. <A
HREF="storage-toast.html"
>TOAST</A
></DT
><DT
>56.3. <A
HREF="storage-fsm.html"
>Free Space Map</A
></DT
><DT
>56.4. <A
HREF="storage-vm.html"
>Visibility Map</A
></DT
><DT
>56.5. <A
HREF="storage-init.html"
>The Initialization Fork</A
></DT
><DT
>56.6. <A
HREF="storage-page-layout.html"
>Database Page Layout</A
></DT
></DL
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><P
>This chapter provides an overview of the physical storage format used by
<SPAN
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>PostgreSQL</SPAN
> databases.</P
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