51 lines
1.8 KiB
Plaintext
51 lines
1.8 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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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 in the file
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1.0_to_1.01.sql. This can be done easily through psql. If your
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1.0 database is name "testdb":
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% psql testdb -f 1.0_to_1.01.sql
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