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Postgres FD Implementation
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Abuhujair Javed
Postgres FD Implementation
Commits
ce1ab398
Commit
ce1ab398
authored
May 06, 2005
by
Bruce Momjian
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Update backend flowchart HTML.
parent
33c5fce8
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29 additions
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27 deletions
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-27
src/tools/backend/backend_dirs.html
src/tools/backend/backend_dirs.html
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src/tools/backend/backend_dirs.html
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ce1ab398
...
...
@@ -73,7 +73,8 @@ converted into <i>Lists</i> of <i>Nodes</i> to be handled by the
optimizer and executor.
</p>
<h2><a
id=
"rewrite"
name=
"rewrite"
></a>
<a
href=
"../../backend/rewrite"
>
rewrite
</a>
- rule and views support
</h2>
href=
"../../backend/rewrite"
>
rewrite
</a>
- rule and views
support
</h2>
<h2><a
id=
"optimizer"
name=
"optimizer"
></a>
<a
href=
"../../backend/optimizer"
>
optimizer
</a>
- creates path and
...
...
@@ -160,28 +161,28 @@ systems</h2>
<p>
These allow uniform resource access by the backend.
<br
/>
<br
/>
<a
id=
"storage_buffer"
name=
"storage_buffer"
></a>
<a
<a
id=
"storage_buffer"
name=
"storage_buffer"
></a>
<a
href=
"../../backend/storage/buffer"
>
storage/buffer
</a>
- shared
buffer pool manager
<br
/>
<a
id=
"storage_file"
name=
"storage_file"
></a>
<a
<a
id=
"storage_file"
name=
"storage_file"
></a>
<a
href=
"../../backend/storage/file"
>
storage/file
</a>
- file
manager
<br
/>
<a
id=
"storage_fil
e"
name=
"storage_freespace"
></a>
<a
<a
id=
"storage_freespac
e"
name=
"storage_freespace"
></a>
<a
href=
"../../backend/storage/freespace"
>
storage/freespace
</a>
- free
space map
<br
/>
<a
id=
"storage_ipc"
name=
"storage_ipc"
></a>
<a
<a
id=
"storage_ipc"
name=
"storage_ipc"
></a>
<a
href=
"../../backend/storage/ipc"
>
storage/ipc
</a>
- semaphores and
shared memory
<br
/>
<a
id=
"storage_large_object"
name=
"storage_large_object"
></a>
<a
<a
id=
"storage_large_object"
name=
"storage_large_object"
></a>
<a
href=
"../../backend/storage/large_object"
>
storage/large_object
</a>
- large objects
<br
/>
<a
id=
"storage_lmgr"
name=
"storage_lmgr"
></a>
<a
<a
id=
"storage_lmgr"
name=
"storage_lmgr"
></a>
<a
href=
"../../backend/storage/lmgr"
>
storage/lmgr
</a>
- lock
manager
<br
/>
<a
id=
"storage_page"
name=
"storage_page"
></a>
<a
<a
id=
"storage_page"
name=
"storage_page"
></a>
<a
href=
"../../backend/storage/page"
>
storage/page
</a>
- page
manager
<br
/>
<a
id=
"storage_smgr"
name=
"storage_smgr"
></a>
<a
<a
id=
"storage_smgr"
name=
"storage_smgr"
></a>
<a
href=
"../../backend/storage/smgr"
>
storage/smgr
</a>
- storage/disk
manager
<br
/>
<br
/>
...
...
@@ -194,27 +195,27 @@ methods</h2>
<p>
These control the way data is accessed in heap, indexes, and
transactions.
<br
/>
<br
/>
<a
id=
"access_common"
name=
"access_common"
></a>
<a
<a
id=
"access_common"
name=
"access_common"
></a>
<a
href=
"../../backend/access/common"
>
access/common
</a>
- common
access routines
<br
/>
<a
id=
"access_gist"
name=
"access_gist"
></a>
<a
<a
id=
"access_gist"
name=
"access_gist"
></a>
<a
href=
"../../backend/access/gist"
>
access/gist
</a>
- easy-to-define
access method system
<br
/>
<a
id=
"access_hash"
name=
"access_hash"
></a>
<a
<a
id=
"access_hash"
name=
"access_hash"
></a>
<a
href=
"../../backend/access/hash"
>
access/hash
</a>
- hash
<br
/>
<a
id=
"access_heap"
name=
"access_heap"
></a>
<a
<a
id=
"access_heap"
name=
"access_heap"
></a>
<a
href=
"../../backend/access/heap"
>
access/heap
</a>
- heap is use to
store data rows
<br
/>
<a
id=
"access_index"
name=
"access_index"
></a>
<a
<a
id=
"access_index"
name=
"access_index"
></a>
<a
href=
"../../backend/access/index"
>
access/index
</a>
- used by all
index types
<br
/>
<a
id=
"access_nbtree"
name=
"access_nbtree"
></a>
<a
<a
id=
"access_nbtree"
name=
"access_nbtree"
></a>
<a
href=
"../../backend/access/nbtree"
>
access/nbtree
</a>
- Lehman and
Yao's btree management algorithm
<br
/>
<a
id=
"access_rtree"
name=
"access_rtree"
></a>
<a
<a
id=
"access_rtree"
name=
"access_rtree"
></a>
<a
href=
"../../backend/access/rtree"
>
access/rtree
</a>
- used for
indexing of 2-dimensional data
<br
/>
<a
id=
"access_transam"
name=
"access_transam"
></a>
<a
<a
id=
"access_transam"
name=
"access_transam"
></a>
<a
href=
"../../backend/access/transam"
>
access/transam
</a>
-
transaction manager (BEGIN/ABORT/COMMIT)
<br
/>
<br
/>
...
...
@@ -230,7 +231,7 @@ called nodes. <i>Nodes</i> are generic containers that have a
usually placed in
<i>
Lists.
</i>
A
<i>
List
</i>
is container with an
<i>
elem
</i>
element, and a
<i>
next
</i>
field that points to the
next
<i>
List.
</i>
These
<i>
List
</i>
structures are chained together
in a forward linked list. In this way, a chain of
<i>
List
</i>
s can
in a forward linked list. In this way, a chain of
<i>
List
</i>
s can
contain an unlimited number of
<i>
Node
</i>
elements, and each
<i>
Node
</i>
can contain any data type. These are used extensively
in the parser, optimizer, and executor to store requests and
...
...
@@ -283,9 +284,9 @@ maintained by the backend.</p>
href=
"../../backend/utils/init"
>
utils/init
</a>
- various
initialization stuff
</h3>
<h3><a
id=
"utils_m
isc
"
name=
"utils_mb"
></a>
<a
href=
"../../backend/utils/mb"
>
utils/mb
</a>
- single and
multibyte
encoding
</h3>
<h3><a
id=
"utils_m
b
"
name=
"utils_mb"
></a>
<a
href=
"../../backend/utils/mb"
>
utils/mb
</a>
- single and
multibyte
encoding
</h3>
<h3><a
id=
"utils_misc"
name=
"utils_misc"
></a>
<a
href=
"../../backend/utils/misc"
>
utils/misc
</a>
- miscellaneous
...
...
@@ -300,7 +301,7 @@ context. Contexts can be statement-specific, transaction-specific,
or persistent/global. By doing this, the backend can easily free
memory once a statement or transaction completes.
</p>
<h3><a
id=
"utils_
mmg
r"
name=
"utils_resowner"
></a>
<a
<h3><a
id=
"utils_
resowne
r"
name=
"utils_resowner"
></a>
<a
href=
"../../backend/utils/resowner"
>
utils/resowner
</a>
- resource
owner tracking
</h3>
...
...
@@ -337,15 +338,16 @@ library</h2>
<p>
This is used for regular expression handling in the backend,
i.e. '~'.
</p>
<h2><a
id=
"
rewrite
"
name=
"port"
></a>
<a
<h2><a
id=
"
port
"
name=
"port"
></a>
<a
href=
"../../backend/port"
>
port
</a>
- compatibility routines
</h2>
<br
/>
<hr
/>
<small>
Maintainer: Bruce Momjian (
<a
href=
"mailto:pgman@candle.pha.pa.us"
>
pgman@candle.pha.pa.us
</a>
)
<br
/>
Last updated: Fri May 6 14:22:27 EDT 2005
</small>
<hr
/>
<small>
Maintainer: Bruce Momjian (
<a
href=
"mailto:pgman@candle.pha.pa.us"
>
pgman@candle.pha.pa.us
</a>
)
<br
/>
Last updated: Fri May 6 14:22:27 EDT 2005
</small>
</body>
</html>
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