Mercurial > cpython-lru_cache-weakref

annotate Lib/sqlite3/dump.py @ 56121:ea697cde6882 3.1

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Merged revisions 74881-74885,74888,74891-74895,74900,74905-74906,74931-74932,74934,74941-74942,74944,74956 via svnmerge from svn+ssh://pythondev@svn.python.org/python/branches/py3k ........ r74881 | r.david.murray | 2009-09-17 15:12:49 -0400 (Thu, 17 Sep 2009) | 2 lines Check in first draft of maintainers.rst. ........ r74882 | eric.smith | 2009-09-17 15:22:30 -0400 (Thu, 17 Sep 2009) | 1 line Typo. ........ r74883 | mark.dickinson | 2009-09-17 15:37:28 -0400 (Thu, 17 Sep 2009) | 1 line Add some more module maintainers. ........ r74884 | mark.dickinson | 2009-09-17 15:39:12 -0400 (Thu, 17 Sep 2009) | 1 line Revert accidental changes to Objects/longobject.c ........ r74885 | mark.dickinson | 2009-09-17 16:20:01 -0400 (Thu, 17 Sep 2009) | 1 line Add decimal maintainers ........ r74888 | r.david.murray | 2009-09-17 18:10:48 -0400 (Thu, 17 Sep 2009) | 2 lines Maintainer additions from MAL. ........ r74891 | georg.brandl | 2009-09-17 18:18:01 -0400 (Thu, 17 Sep 2009) | 1 line Some more maintainers. ........ r74892 | r.david.murray | 2009-09-17 19:23:56 -0400 (Thu, 17 Sep 2009) | 2 lines Add a couple interest areas for Nick per his request. ........ r74893 | r.david.murray | 2009-09-17 19:43:20 -0400 (Thu, 17 Sep 2009) | 2 lines Benajmin is also compiler-knowledgeable. ........ r74894 | alexandre.vassalotti | 2009-09-17 20:59:05 -0400 (Thu, 17 Sep 2009) | 2 lines Added myself to my areas of interest. ........ r74895 | brett.cannon | 2009-09-17 21:03:35 -0400 (Thu, 17 Sep 2009) | 1 line Add myself to a couple places as maintainer. ........ r74900 | georg.brandl | 2009-09-18 05:06:37 -0400 (Fri, 18 Sep 2009) | 1 line Add myself in interest areas. ........ r74905 | ezio.melotti | 2009-09-18 05:58:43 -0400 (Fri, 18 Sep 2009) | 1 line Add myself in interest areas and mark effbot as inactive in winsound ........ r74906 | antoine.pitrou | 2009-09-18 09:15:23 -0400 (Fri, 18 Sep 2009) | 3 lines Add myself in a couple of places ........ r74931 | r.david.murray | 2009-09-18 17:25:36 -0400 (Fri, 18 Sep 2009) | 5 lines Add some names gleaned from the "Tracker Archeology" thread on python-dev from back in February. Also consolidate the autoconf and makefiles topics into one, and add tracker and svn/hg topics. ........ r74932 | r.david.murray | 2009-09-18 17:32:16 -0400 (Fri, 18 Sep 2009) | 2 lines Remove non-committer mistakenly added. ........ r74934 | r.david.murray | 2009-09-18 17:40:30 -0400 (Fri, 18 Sep 2009) | 2 lines More descriptive/generic name for the svn/hg entry (version control) ........ r74941 | benjamin.peterson | 2009-09-18 18:45:59 -0400 (Fri, 18 Sep 2009) | 1 line add a new category for myself ........ r74942 | benjamin.peterson | 2009-09-18 18:50:55 -0400 (Fri, 18 Sep 2009) | 1 line add myself for symtable ........ r74944 | georg.brandl | 2009-09-19 03:39:05 -0400 (Sat, 19 Sep 2009) | 1 line I would like to maintain the token module! ........ r74956 | r.david.murray | 2009-09-19 14:40:08 -0400 (Sat, 19 Sep 2009) | 3 lines Add everyone who we know has been a release manager as a resource for the 'release management' topic. ........
author R. David Murray <rdmurray@bitdance.com>
date Sat, 19 Sep 2009 19:04:37 +0000
parents 872abed7d069
children 60aa7dacb605
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rev   line source
46176
872abed7d069 Added missing files for new iterdump method.
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1 # Mimic the sqlite3 console shell's .dump command
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2 # Author: Paul Kippes <kippesp@gmail.com>
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3
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4 def _iterdump(connection):
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5 """
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6 Returns an iterator to the dump of the database in an SQL text format.
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7
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8 Used to produce an SQL dump of the database. Useful to save an in-memory
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9 database for later restoration. This function should not be called
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10 directly but instead called from the Connection method, iterdump().
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11 """
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12
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13 cu = connection.cursor()
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14 yield('BEGIN TRANSACTION;')
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15
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16 # sqlite_master table contains the SQL CREATE statements for the database.
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17 q = """
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18 SELECT name, type, sql
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19 FROM sqlite_master
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20 WHERE sql NOT NULL AND
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21 type == 'table'
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22 """
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23 schema_res = cu.execute(q)
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24 for table_name, type, sql in schema_res.fetchall():
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25 if table_name == 'sqlite_sequence':
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26 yield('DELETE FROM sqlite_sequence;')
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27 elif table_name == 'sqlite_stat1':
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28 yield('ANALYZE sqlite_master;')
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29 elif table_name.startswith('sqlite_'):
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30 continue
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31 # NOTE: Virtual table support not implemented
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32 #elif sql.startswith('CREATE VIRTUAL TABLE'):
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33 # qtable = table_name.replace("'", "''")
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34 # yield("INSERT INTO sqlite_master(type,name,tbl_name,rootpage,sql)"\
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35 # "VALUES('table','%s','%s',0,'%s');" %
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36 # qtable,
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37 # qtable,
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38 # sql.replace("''"))
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39 else:
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40 yield('%s;' % sql)
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41
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42 # Build the insert statement for each row of the current table
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43 res = cu.execute("PRAGMA table_info('%s')" % table_name)
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44 column_names = [str(table_info[1]) for table_info in res.fetchall()]
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45 q = "SELECT 'INSERT INTO \"%(tbl_name)s\" VALUES("
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46 q += ",".join(["'||quote(" + col + ")||'" for col in column_names])
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47 q += ")' FROM '%(tbl_name)s'"
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48 query_res = cu.execute(q % {'tbl_name': table_name})
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49 for row in query_res:
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50 yield("%s;" % row[0])
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51
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52 # Now when the type is 'index', 'trigger', or 'view'
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53 q = """
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54 SELECT name, type, sql
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55 FROM sqlite_master
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56 WHERE sql NOT NULL AND
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57 type IN ('index', 'trigger', 'view')
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58 """
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59 schema_res = cu.execute(q)
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60 for name, type, sql in schema_res.fetchall():
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61 yield('%s;' % sql)
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62
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63 yield('COMMIT;')