PostgreSQL/PgLoader: Difference between revisions

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(Created page with "==Playground== {| |valign='top'| |valign='top'| |valign='top'| |- |colspan='3'| ---- |- |valign='top'| |valign='top'| |valign='top'| |} == References== {| |valign="top"| * [https://www.digitalocean.com/community/tutorials/how-to-migrate-mysql-database-to-postgres-using-pgloader PostgreSQL » PgLoader » Migrate From MySQL] * PostgreSQL » PgBouncer * [https://github.com/dimitri/pgloader PostgreSQL » PgLoader] * Helm/PostgreSQL|PostgreSQ...")
 
 
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==Playground==
<syntaxhighlight lang="bash">
cat << EXE | sudo bash
apt-get update;echo
apt list -a --upgradable
apt-get install -y pgloader
EXE
</syntaxhighlight>
 
==Migration==
{|
{|
|valign='top'|
|valign='top'|
<syntaxhighlight lang="sql">
cat << DDL | mariadb
CREATE DATABASE IF NOT EXISTS academia;
CREATE USER 'chorke'@'%' IDENTIFIED BY 'sadaqah!';
GRANT ALL PRIVILEGES ON academia.* TO 'chorke'@'%';
FLUSH PRIVILEGES;
DDL
</syntaxhighlight>


|valign='top'|
|valign='top'|
<syntaxhighlight lang="sql">
cat << DDL | psql
CREATE DATABASE academia;
CREATE USER chorke WITH ENCRYPTED PASSWORD 'sadaqah!';
GRANT ALL PRIVILEGES ON DATABASE academia TO chorke;
ALTER DATABASE academia OWNER TO chorke;
DDL
</syntaxhighlight>
|-
|colspan='2'|
----
|-
|colspan='2'|
<syntaxhighlight lang="bash">
BACKUP_DATE_N_TIME="$(date +'%Y%m%d-T%H%M')-Z$(date +'%z'|tr '+-' 'PM')"
echo -n password: ;read -s MYSQL_PWD;export MYSQL_PWD; echo
# password: sadaqah!
mariadb      -h127.0.0.1 -P3306 -uchorke -Dacademia
mariadb-dump -h127.0.0.1 -P3306 -uchorke -Bacademia > ./academia-${BACKUP_DATE_N_TIME}.dump
mariadb      -h127.0.0.1 -P3306 -uchorke -Dacademia < ./academia-20241010-T1010-ZP0600.dump
</syntaxhighlight>
|-
|colspan='2'|
----
|-
|colspan='2'|
<syntaxhighlight lang="bash">
cat <<MIG | pgloader -v /dev/stdin
LOAD DATABASE
FROM mysql://chorke:sadaqah!@localhost/academia?useSSL=false
INTO pgsql://chorke:sadaqah!@localhost/academia;
MIG
</syntaxhighlight>


|valign='top'|
|-
|colspan='2'|
----
|-
|colspan='2'|
<syntaxhighlight lang="bash">
BACKUP_DATE_N_TIME="$(date +'%Y%m%d-T%H%M')-Z$(date +'%z'|tr '+-' 'PM')"
echo -n password: ;read -s PGPASSWORD;export PGPASSWORD;echo
# password: sadaqah!
 
psql    -h127.0.0.1 -p5432 -Uchorke -dacademia
pg_dump  -h127.0.0.1 -p5432 -Uchorke -dacademia | gzip > academia-${BACKUP_DATE_N_TIME}.sql.gz
gunzip -c academia-20241010-T1010-ZP0600.sql.gz | psql -h127.0.0.1 -p5432 -Uchorke -dacademia
</syntaxhighlight>


|-
|-
|colspan='3'|
|colspan='2'|
----
----
|-
|-
Line 14: Line 79:


|valign='top'|
|valign='top'|
|}
==Playground==
{|
|valign='top' colspan='2'|
<syntaxhighlight lang="bash">
docker run --rm -it ghcr.io/dimitri/pgloader:latest pgloader -h
docker run --rm -it ghcr.io/dimitri/pgloader:latest pgloader -V
</syntaxhighlight>


|valign='top'|
|valign='top'|
<syntaxhighlight lang="bash">
pgloader -h
pgloader -V
</syntaxhighlight>
|-
|colspan='3'|
----
|-
|colspan='3'|
<syntaxhighlight lang="bash">
pgloader ./sqlite/academia.db pgsql:///academia
pgloader ./sqlite/academia.db pgsql://chorke:sadaqah!@localhost/academia
</syntaxhighlight>
|-
|colspan='3'|
----
|-
|colspan='3'|
<syntaxhighlight lang="bash">
pgloader mysql://chorke:sadaqah!@localhost/academia pgsql:///academia
pgloader mysql://chorke:sadaqah!@localhost/academia pgsql://chorke:sadaqah!@localhost/academia
</syntaxhighlight>
|-
|colspan='3'|
----
|-
|colspan='3'|
<syntaxhighlight lang="bash">
cat <<MIG | pgloader -v /dev/stdin
LOAD DATABASE
FROM mysql://chorke:sadaqah!@localhost/academia?useSSL=false
INTO pgsql://chorke:sadaqah!@localhost/academia
WITH include drop, create tables
ALTER SCHEMA 'academia' RENAME TO 'public';
MIG
</syntaxhighlight>


|}
|}

Latest revision as of 22:07, 3 December 2024

cat << EXE | sudo bash
apt-get update;echo
apt list -a --upgradable
apt-get install -y pgloader
EXE

Migration

cat << DDL | mariadb
CREATE DATABASE IF NOT EXISTS academia;
CREATE USER 'chorke'@'%' IDENTIFIED BY 'sadaqah!';
GRANT ALL PRIVILEGES ON academia.* TO 'chorke'@'%';
FLUSH PRIVILEGES;
DDL

cat << DDL | psql
CREATE DATABASE academia;
CREATE USER chorke WITH ENCRYPTED PASSWORD 'sadaqah!';
GRANT ALL PRIVILEGES ON DATABASE academia TO chorke;
ALTER DATABASE academia OWNER TO chorke;
DDL

BACKUP_DATE_N_TIME="$(date +'%Y%m%d-T%H%M')-Z$(date +'%z'|tr '+-' 'PM')"
echo -n password: ;read -s MYSQL_PWD;export MYSQL_PWD; echo
# password: sadaqah!

mariadb      -h127.0.0.1 -P3306 -uchorke -Dacademia
mariadb-dump -h127.0.0.1 -P3306 -uchorke -Bacademia > ./academia-${BACKUP_DATE_N_TIME}.dump
mariadb      -h127.0.0.1 -P3306 -uchorke -Dacademia < ./academia-20241010-T1010-ZP0600.dump

cat <<MIG | pgloader -v /dev/stdin
LOAD DATABASE
FROM mysql://chorke:sadaqah!@localhost/academia?useSSL=false
INTO pgsql://chorke:sadaqah!@localhost/academia;
MIG

BACKUP_DATE_N_TIME="$(date +'%Y%m%d-T%H%M')-Z$(date +'%z'|tr '+-' 'PM')"
echo -n password: ;read -s PGPASSWORD;export PGPASSWORD;echo
# password: sadaqah!

psql     -h127.0.0.1 -p5432 -Uchorke -dacademia
pg_dump  -h127.0.0.1 -p5432 -Uchorke -dacademia | gzip > academia-${BACKUP_DATE_N_TIME}.sql.gz
gunzip -c academia-20241010-T1010-ZP0600.sql.gz | psql -h127.0.0.1 -p5432 -Uchorke -dacademia

Playground

docker run --rm -it ghcr.io/dimitri/pgloader:latest pgloader -h
docker run --rm -it ghcr.io/dimitri/pgloader:latest pgloader -V

pgloader -h
pgloader -V

pgloader ./sqlite/academia.db pgsql:///academia
pgloader ./sqlite/academia.db pgsql://chorke:sadaqah!@localhost/academia

pgloader mysql://chorke:sadaqah!@localhost/academia pgsql:///academia
pgloader mysql://chorke:sadaqah!@localhost/academia pgsql://chorke:sadaqah!@localhost/academia

cat <<MIG | pgloader -v /dev/stdin
LOAD DATABASE
FROM mysql://chorke:sadaqah!@localhost/academia?useSSL=false
INTO pgsql://chorke:sadaqah!@localhost/academia
WITH include drop, create tables
ALTER SCHEMA 'academia' RENAME TO 'public';
MIG

References

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