Usage: apgdiff [options] <old_dump> <new_dump>


Another PostgreSQL Diff Tool is a simple PostgreSQL diff tool that is useful for schema upgrades. The tool compares two schema dump files and creates an SQL output file that is (after some hand-made modifications) suitable for upgrades of old schemata.



displays apgdiff version


adds DEFAULT ... in case new column has NOT NULL constraint but no default value (the default value is dropped later)


adds START TRANSACTION and COMMIT TRANSACTION to the generated diff file


ignores multiple spaces and new lines when comparing content of functions

WARNING: this may cause functions to appear to be same in cases they are not, so use this feature only if you know what you are doing


ignores START WITH modifications on SEQUENCEs (default is not to ignore these changes)

--in-charset-name <charset>

charset that should be used for reading input files (standard charset name supported by Java, default is UTF-8)

--out-charset-name <charset>

charset that should be used for writing output (standard charset name supported by Java, default is UTF-8)


outputs information about DDL statements that apgdiff ignores at this moment (it will not output any SELECT, INSERT, UPDATE and/or DELETE statements)


when parsing SQL statements, ignores Slony triggers named _slony_logtrigger and _slony_denyaccess


lists all supported charsets


Miroslav Ć ulc <[email protected]>. This manual page was written by Christoph Berg <[email protected]> for the Debian system (but may be used by others).


Christoph Berg <[email protected]>