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Neon-readme-13.sh(archivo creado)
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| 1 | + | # create branch named migration_check | |
| 2 | + | > cargo neon timeline branch --branch-name migration_check | |
| 3 | + | Created timeline 'b3b863fa45fa9e57e615f9f2d944e601' at Lsn 0/16F9A00 for tenant: 9ef87a5bf0d92544f6fafeeb3239695c. Ancestor timeline: 'main' | |
| 4 | + | ||
| 5 | + | # check branches tree | |
| 6 | + | > cargo neon timeline list | |
| 7 | + | (L) main [de200bd42b49cc1814412c7e592dd6e9] | |
| 8 | + | (L) ┗━ @0/16F9A00: migration_check [b3b863fa45fa9e57e615f9f2d944e601] | |
| 9 | + | ||
| 10 | + | # create postgres on that branch | |
| 11 | + | > cargo neon endpoint create migration_check --branch-name migration_check | |
| 12 | + | ||
| 13 | + | # start postgres on that branch | |
| 14 | + | > cargo neon endpoint start migration_check | |
| 15 | + | Starting new endpoint migration_check (PostgreSQL v14) on timeline b3b863fa45fa9e57e615f9f2d944e601 ... | |
| 16 | + | Starting postgres at 'postgresql://cloud_admin@127.0.0.1:55434/postgres' | |
| 17 | + | ||
| 18 | + | # check the new list of running postgres instances | |
| 19 | + | > cargo neon endpoint list | |
| 20 | + | ENDPOINT ADDRESS TIMELINE BRANCH NAME LSN STATUS | |
| 21 | + | main 127.0.0.1:55432 de200bd42b49cc1814412c7e592dd6e9 main 0/16F9A38 running | |
| 22 | + | migration_check 127.0.0.1:55434 b3b863fa45fa9e57e615f9f2d944e601 migration_check 0/16F9A70 running | |
| 23 | + | ||
| 24 | + | # this new postgres instance will have all the data from 'main' postgres, | |
| 25 | + | # but all modifications would not affect data in original postgres | |
| 26 | + | > psql -p 55434 -h 127.0.0.1 -U cloud_admin postgres | |
| 27 | + | postgres=# select * from t; | |
| 28 | + | key | value | |
| 29 | + | -----+------- | |
| 30 | + | 1 | 1 | |
| 31 | + | (1 row) | |
| 32 | + | ||
| 33 | + | postgres=# insert into t values(2,2); | |
| 34 | + | INSERT 0 1 | |
| 35 | + | ||
| 36 | + | # check that the new change doesn't affect the 'main' postgres | |
| 37 | + | > psql -p 55432 -h 127.0.0.1 -U cloud_admin postgres | |
| 38 | + | postgres=# select * from t; | |
| 39 | + | key | value | |
| 40 | + | -----+------- | |
| 41 | + | 1 | 1 | |
| 42 | + | (1 row) | |
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