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95 lines
3.9 KiB
Plaintext
95 lines
3.9 KiB
Plaintext
The following notes are for the benefit of users who want to migrate
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databases from postgres95 1.0 to postgres95 1.01.
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If you are starting afresh with postgres95 1.01 and do not need
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to migrate old databases, you do not need to read any further.
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----------------------------------------------------------------------
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In order to postgres95 version 1.01 with databases created with
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postgres95 version 1.0, the following steps are required:
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1) Set the definition of NAMEDATALEN in src/Makefile.global to 16
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and OIDNAMELEN to 20.
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2) Decide whether you want to use Host based authentication.
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A) If you do, you must create a file name "pg_hba" in your top-level data
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directory (typically the value of your $PGDATA). src/libpq/pg_hba
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shows an example syntax.
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B) If you do not want host-based authentication, you can comment out
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the line
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HBA = 1
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in src/Makefile.global
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Note that host-based authentication is turned on by default, and if
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you do not take steps A or B above, the out-of-the-box 1.01 will
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not allow you to connect to 1.0 databases.
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3) compile and install 1.01, but DO NOT do the initdb step.
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4) before doing anything else, terminate your 1.0 postmaster, and
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backup your existing $PGDATA directory.
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5) set your PGDATA environment variable to your 1.0 databases, but set up
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path up so that 1.01 binaries are being used.
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6) modify the file $PGDATA/PG_VERSION from 5.0 to 5.1
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7) start up a new 1.01 postmaster
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5) Add the new built-in functions and operators of 1.01 to 1.0
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databases. This is done by running the new 1.01 server against
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your own 1.0 database and applying the queries attached and saving
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in the file 1.0_to_1.01.sql. This can be done easily through psql.
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If your 1.0 database is name "testdb":
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% psql testdb -f 1.0_to_1.01.sql
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------------------------------------------------------------------------------
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-- add builtin functions that are new to 1.01
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create function int4eqoid (int4, oid) returns bool as 'foo'
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language 'internal';
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create function oideqint4 (oid, int4) returns bool as 'foo'
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language 'internal';
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create function char2icregexeq (char2, text) returns bool as 'foo'
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language 'internal';
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create function char2icregexne (char2, text) returns bool as 'foo'
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language 'internal';
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create function char4icregexeq (char4, text) returns bool as 'foo'
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language 'internal';
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create function char4icregexne (char4, text) returns bool as 'foo'
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language 'internal';
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create function char8icregexeq (char8, text) returns bool as 'foo'
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language 'internal';
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create function char8icregexne (char8, text) returns bool as 'foo'
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language 'internal';
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create function char16icregexeq (char16, text) returns bool as 'foo'
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language 'internal';
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create function char16icregexne (char16, text) returns bool as 'foo'
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language 'internal';
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create function texticregexeq (text, text) returns bool as 'foo'
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language 'internal';
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create function texticregexne (text, text) returns bool as 'foo'
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language 'internal';
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-- add builtin functions that are new to 1.01
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create operator = (leftarg = int4, rightarg = oid, procedure = int4eqoid);
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create operator = (leftarg = oid, rightarg = int4, procedure = oideqint4);
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create operator ~* (leftarg = char2, rightarg = text, procedure = char2icregexeq);
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create operator !~* (leftarg = char2, rightarg = text, procedure = char2icregexne);
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create operator ~* (leftarg = char4, rightarg = text, procedure = char4icregexeq);
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create operator !~* (leftarg = char4, rightarg = text, procedure = char4icregexne);
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create operator ~* (leftarg = char8, rightarg = text, procedure = char8icregexeq);
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create operator !~* (leftarg = char8, rightarg = text, procedure = char8icregexne);
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create operator ~* (leftarg = char16, rightarg = text, procedure = char16icregexeq);
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create operator !~* (leftarg = char16, rightarg = text, procedure = char16icregexne);
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create operator ~* (leftarg = text, rightarg = text, procedure = texticregexeq);
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create operator !~* (leftarg = text, rightarg = text, procedure = texticregexne);
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