--- /dev/null
+*** /laptop/my2pg.pl Mon Apr 19 18:51:44 2004
+--- my2pg.pl Mon Apr 19 18:59:09 2004
+***************
+*** 38,43 ****
+--- 38,50 ----
+ # $My2pg: my2pg.pl,v 1.28 2001/12/06 19:32:20 fonin Exp $
+ # $Id: my2pg.diff,v 1.1 2004/04/19 23:18:12 momjian Exp $
+
++ # Custom patch
++ # Revision 1.9 2002/08/22 00:01:39 tgl
++ # Add a bunch of pseudo-types to replace the behavior formerly associated
++ # with OPAQUE, as per recent pghackers discussion. I still want to do some
++ # more work on the 'cstring' pseudo-type, but I'm going to commit the bulk
++ # of the changes now before the tree starts shifting under me ...
++
+ #
+ # $Log: my2pg.diff,v $
+ # Revision 1.1 2004/04/19 23:18:12 momjian
+ # Update to my2pg version 1.28, add docs, update URL for newest version.
+ #
+ # Create diff of custom changes Tom made to the utility for CREATE
+ # FUNCTION.
+ #
+ # This will make moving this utility out of CVS easier.
+ #
+ # Revision 1.28 2002/11/30 12:03:48 fonin
+***************
+*** 332,342 ****
+ print LIBTYPES "\n * Types for table ".uc($table_name);
+ print LIBTYPES "\n */\n";
+
+! $types.="\nCREATE FUNCTION $typename"."_in (opaque)
+ RETURNS $typename
+ AS '$libtypename'
+ LANGUAGE 'c'
+! WITH (ISCACHABLE);\n";
+
+ # creating output function
+ my $func_out="
+--- 339,349 ----
+ print LIBTYPES "\n * Types for table ".uc($table_name);
+ print LIBTYPES "\n */\n";
+
+! $types.="\nCREATE FUNCTION $typename"."_in (cstring)
+ RETURNS $typename
+ AS '$libtypename'
+ LANGUAGE 'c'
+! WITH (ISSTRICT, ISCACHABLE);\n";
+
+ # creating output function
+ my $func_out="
+***************
+*** 386,396 ****
+ return (*a>=*b);
+ }\n";
+
+! $types.="\nCREATE FUNCTION $typename"."_out (opaque)
+! RETURNS opaque
+ AS '$libtypename'
+ LANGUAGE 'c'
+! WITH (ISCACHABLE);\n";
+
+ $types.="\nCREATE TYPE $typename (
+ internallength = 2,
+--- 393,403 ----
+ return (*a>=*b);
+ }\n";
+
+! $types.="\nCREATE FUNCTION $typename"."_out ($typename)
+! RETURNS cstring
+ AS '$libtypename'
+ LANGUAGE 'c'
+! WITH (ISSTRICT, ISCACHABLE);\n";
+
+ $types.="\nCREATE TYPE $typename (
+ internallength = 2,
+***************
+*** 532,538 ****
+ print LIBTYPES "\n * Types for table ".uc($table_name);
+ print LIBTYPES "\n */\n";
+
+! $types.="\nCREATE FUNCTION $typename"."_in (opaque)
+ RETURNS $typename
+ AS '$libtypename'
+ LANGUAGE 'c';\n";
+--- 539,545 ----
+ print LIBTYPES "\n * Types for table ".uc($table_name);
+ print LIBTYPES "\n */\n";
+
+! $types.="\nCREATE FUNCTION $typename"."_in (cstring)
+ RETURNS $typename
+ AS '$libtypename'
+ LANGUAGE 'c';\n";
+***************
+*** 584,591 ****
+
+ \n";
+
+! $types.="\nCREATE FUNCTION $typename"."_out (opaque)
+! RETURNS opaque
+ AS '$libtypename'
+ LANGUAGE 'c';\n";
+
+--- 591,598 ----
+
+ \n";
+
+! $types.="\nCREATE FUNCTION $typename"."_out ($typename)
+! RETURNS cstring
+ AS '$libtypename'
+ LANGUAGE 'c';\n";
+
--- /dev/null
+<HTML>
+<HEAD>
+<TITLE>my2pg - MySQL -> PostgreSQL dump conversion utility.</TITLE>
+<LINK REV="made" HREF="mailto:bhcompile@daffy.perf.redhat.com">
+</HEAD>
+
+<BODY>
+
+<A NAME="__index__"></A>
+<!-- INDEX BEGIN -->
+
+<UL>
+
+ <LI><A HREF="#name">NAME</A></LI>
+ <LI><A HREF="#syntax">SYNTAX</A></LI>
+ <LI><A HREF="#overview">OVERVIEW</A></LI>
+ <LI><A HREF="#commandline options">COMMAND-LINE OPTIONS</A></LI>
+ <LI><A HREF="#side effects">SIDE EFFECTS</A></LI>
+ <LI><A HREF="#bugs">BUGS</A></LI>
+ <LI><A HREF="#authors">AUTHORS</A></LI>
+ <LI><A HREF="#credits">CREDITS</A></LI>
+ <LI><A HREF="#license">LICENSE</A></LI>
+</UL>
+<!-- INDEX END -->
+
+<HR>
+<P>
+<H1><A NAME="name">NAME</A></H1>
+<P>my2pg - MySQL -> PostgreSQL dump conversion utility.</P>
+<P>
+<HR>
+<H1><A NAME="syntax">SYNTAX</A></H1>
+<PRE>
+ mysqldump db | ./my2pg.pl [-nds] > pgsqldump.sql
+ vi libtypes.c
+ make
+ psql database < pgsqldump.txt
+where</PRE>
+<DL>
+<DT><STRONG><A NAME="item_pgsqldump%2Esql"><EM>pgsqldump.sql</EM></A></STRONG><BR>
+<DD>
+- file suitable for loading into PostgreSQL.
+<P></P>
+<DT><STRONG><A NAME="item_libtypes%2Ec"><EM>libtypes.c</EM></A></STRONG><BR>
+<DD>
+- C source for emulated MySQL types (ENUM, SET) generated by <STRONG>my2pg</STRONG>
+<P></P></DL>
+<P>
+<HR>
+<H1><A NAME="overview">OVERVIEW</A></H1>
+<P><STRONG>my2pg</STRONG> utility attempts to convert MySQL database dump to Postgres's one.
+<STRONG>my2pg</STRONG> performs such conversions:</P>
+<UL>
+<LI><STRONG><A NAME="item_Type_conversion%2E">Type conversion.</A></STRONG><BR>
+
+It tries to find proper Postgres
+type for each column.
+Unknown types are silently pushing to output dump;
+ENUM and SET types implemented via user types
+(C source for such types can be found in
+<STRONG>libtypes.c</STRONG> file);
+<P></P>
+<LI><STRONG><A NAME="item_Encloses_identifiers_into_double_quotes%2E">Encloses identifiers into double quotes.</A></STRONG><BR>
+
+All column and table
+names should be enclosed to double-quotes to prevent
+conflict with reserved SQL keywords;
+<P></P>
+<LI><STRONG><A NAME="item_Converting">Converting</A></STRONG><BR>
+
+AUTO_INCREMENT fields to SERIAL. Actually, creating the sequence and
+setting default value to nextval('seq'), well, you know :)
+<P></P>
+<LI><STRONG>Converting</STRONG><BR>
+
+<CODE>KEY(field)</CODE> to CREATE INDEX i_field on table (field);
+<P></P>
+<LI><STRONG><A NAME="item_The_same">The same</A></STRONG><BR>
+
+for UNIQUE keys;
+<P></P>
+<LI><STRONG><A NAME="item_Indices">Indices</A></STRONG><BR>
+
+are creating AFTER rows insertion (to speed up the load);
+<P></P>
+<LI><STRONG><A NAME="item_Translates_%27%23%27">Translates '#'</A></STRONG><BR>
+
+MySQL comments to ANSI SQL '--'
+<P></P></UL>
+<P>It encloses dump in transaction block to prevent single errors
+during data load.</P>
+<P>
+<HR>
+<H1><A NAME="commandline options">COMMAND-LINE OPTIONS</A></H1>
+<P>My2pg takes the following command-line options:</P>
+<DL>
+<DT><STRONG><A NAME="item_%2Dn">-n</A></STRONG><BR>
+<DD>
+Convert *CHAR DEFAULT '' NOT NULL types to *CHAR NULL.
+Postgres can't load empty '' strings in NOT NULL fields.
+<P></P>
+<DT><STRONG><A NAME="item_%2Dd">-d</A></STRONG><BR>
+<DD>
+Add double quotes around table and column names
+<P></P>
+<DT><STRONG><A NAME="item_%2Dh">-h</A></STRONG><BR>
+<DD>
+Show usage banner.
+<P></P>
+<DT><STRONG><A NAME="item_%2Ds">-s</A></STRONG><BR>
+<DD>
+Do not attempt to convert data. Currently my2pg only tries to convert
+date and time data.
+<P></P></DL>
+<P>
+<HR>
+<H1><A NAME="side effects">SIDE EFFECTS</A></H1>
+<UL>
+<LI><STRONG><A NAME="item_creates">creates</A></STRONG><BR>
+
+file <STRONG>libtypes.c</STRONG> in current directory
+overwriting existed file without any checks;
+<P></P>
+<LI><STRONG><A NAME="item_the_same">the same</A></STRONG><BR>
+
+for Makefile.
+<P></P></UL>
+<P>
+<HR>
+<H1><A NAME="bugs">BUGS</A></H1>
+<P>Known bugs are:</P>
+<UL>
+<LI><STRONG><A NAME="item_Possible_problems_with_the_timestamp_data%2E">Possible problems with the timestamp data.</A></STRONG><BR>
+
+PostgreSQL does not accept incorrect date/time values like <STRONG>2002-00-15</STRONG>,
+while MySQL does not care about that. Currently my2pg cannot handle this
+issue. You should care yourself to convert such a data.
+<P></P>
+<LI><STRONG><A NAME="item_Use_%2Ds_option_if_your_numeric_data_are_broken_du">Use -s option if your numeric data are broken during conversion.</A></STRONG><BR>
+
+My2pg attempts to convert MySQL timestamps of the form <STRONG>yyyymmdd</STRONG> to
+<STRONG>yyyy-mm-dd</STRONG> and <STRONG>yyyymmddhhmmss</STRONG> to <STRONG>yyyy-mm-dd hh:mm:ss</STRONG>. It performs
+some heuristic checks to ensure that the month,day,hour,minutes and seconds have
+values from the correct range (0..12, 0..31, 0..23, 0..59, 0..59 respectively).
+It is still possible that your numeric values that satisfy these conditions
+will get broken.
+<P></P>
+<LI><STRONG><A NAME="item_Possible_problems_with_enclosing_identifiers_in_do">Possible problems with enclosing identifiers in double quotes.</A></STRONG><BR>
+
+All identifiers such as table and column names should be enclosed in double
+quotes. Program can't handle upper-case identifiers,
+like DBA. Lower-case identifiers are OK.
+<P></P>
+<LI><STRONG><A NAME="item_SET_type_emulation_is_not_full%2E_LIKE_operation_o">SET type emulation is not full. LIKE operation on</A></STRONG><BR>
+
+SETs, raw integer input values should be implemented
+<P></P>
+<LI><STRONG><A NAME="item_Makefile"><STRONG>Makefile</STRONG></A></STRONG><BR>
+
+generated during output is
+platform-dependent and surely works only on
+Linux/gcc (FreeBSD/gcc probably works as well - not tested)
+<P></P>
+<LI><STRONG><A NAME="item_Generated_libtypes%2Ec_contain_line">Generated <STRONG>libtypes.c</STRONG> contain line</A></STRONG><BR>
+
+<PRE>
+ #include <postgres.h></PRE>
+<P>This file may be located not in standard compiler
+include path, you need to check it before compiling.</P>
+</UL>
+<P>
+<HR>
+<H1><A NAME="authors">AUTHORS</A></H1>
+<P><STRONG>(c) 2000-2002 Maxim V. Rudensky (<A HREF="mailto:fonin@omnistaronline.com">fonin@ziet.zhitomir.ua</A>)</STRONG> (developer, maintainer)</P>
+<P><STRONG>(c) 2000 Valentine V. Danilchuk (<A HREF="mailto:valdan@ziet.zhitomir.ua">valdan@ziet.zhitomir.ua</A>)</STRONG> (original script)</P>
+<P>
+<HR>
+<H1><A NAME="credits">CREDITS</A></H1>
+<P>Great thanks to all those people who provided feedback and make development
+of this tool easier.</P>
+<P>Jeff Waugh <<A HREF="mailto:jaw@ic.net">jaw@ic.net</A>></P>
+<P>Joakim Lemström <<A HREF="mailto:jocke@bytewize.com">jocke@bytewize.com</A>> || <<A HREF="mailto:buddyh19@hotmail.com">buddyh19@hotmail.com</A>></P>
+<P>Yunliang Yu <<A HREF="mailto:yu@math.duke.edu">yu@math.duke.edu</A>></P>
+<P>Brad Hilton <<A HREF="mailto:bhilton@vpop.net">bhilton@vpop.net</A>></P>
+<P>If you are not listed here please write to me.</P>
+<P>
+<HR>
+<H1><A NAME="license">LICENSE</A></H1>
+<P><STRONG>BSD</STRONG></P>
+
+</BODY>
+
+</HTML>
# SUCH DAMAGE.
#
# $My2pg: my2pg.pl,v 1.28 2001/12/06 19:32:20 fonin Exp $
-# $Id: my2pg.pl,v 1.12 2004/04/19 23:11:49 momjian Exp $
+# $Id: my2pg.pl,v 1.13 2004/04/19 23:18:12 momjian Exp $
+
+# Custom patch
+# Revision 1.9 2002/08/22 00:01:39 tgl
+# Add a bunch of pseudo-types to replace the behavior formerly associated
+# with OPAQUE, as per recent pghackers discussion. I still want to do some
+# more work on the 'cstring' pseudo-type, but I'm going to commit the bulk
+# of the changes now before the tree starts shifting under me ...
#
# $Log: my2pg.pl,v $
+# Revision 1.13 2004/04/19 23:18:12 momjian
+# Update to my2pg version 1.28, add docs, update URL for newest version.
+#
+# Create diff of custom changes Tom made to the utility for CREATE
+# FUNCTION.
+#
+# This will make moving this utility out of CVS easier.
+#
# Revision 1.12 2004/04/19 23:11:49 momjian
# Update to my2pg 1.28, from:
#
print LIBTYPES "\n * Types for table ".uc($table_name);
print LIBTYPES "\n */\n";
- $types.="\nCREATE FUNCTION $typename"."_in (opaque)
+ $types.="\nCREATE FUNCTION $typename"."_in (cstring)
RETURNS $typename
AS '$libtypename'
LANGUAGE 'c'
- WITH (ISCACHABLE);\n";
+ WITH (ISSTRICT, ISCACHABLE);\n";
# creating output function
my $func_out="
return (*a>=*b);
}\n";
- $types.="\nCREATE FUNCTION $typename"."_out (opaque)
- RETURNS opaque
+ $types.="\nCREATE FUNCTION $typename"."_out ($typename)
+ RETURNS cstring
AS '$libtypename'
LANGUAGE 'c'
- WITH (ISCACHABLE);\n";
+ WITH (ISSTRICT, ISCACHABLE);\n";
$types.="\nCREATE TYPE $typename (
internallength = 2,
print LIBTYPES "\n * Types for table ".uc($table_name);
print LIBTYPES "\n */\n";
- $types.="\nCREATE FUNCTION $typename"."_in (opaque)
+ $types.="\nCREATE FUNCTION $typename"."_in (cstring)
RETURNS $typename
AS '$libtypename'
LANGUAGE 'c';\n";
\n";
- $types.="\nCREATE FUNCTION $typename"."_out (opaque)
- RETURNS opaque
+ $types.="\nCREATE FUNCTION $typename"."_out ($typename)
+ RETURNS cstring
AS '$libtypename'
LANGUAGE 'c';\n";
open(MAKE,">Makefile");
print MAKE "#
-# My2Pg \$Revision: 1.12 $ \translated dump
+# My2Pg \$Revision: 1.13 $ \translated dump
# Makefile
#
projects / postgresql / commitdiff