是否可以在 Postgres 的 pg_dump 中仅提取以特定名称开头的表？

Question

Among the hundreds of tables in the postgres DB, only the structure dump of tables starting with a specific name is found.

Example

the name of the table

abc

abc_hello

abc_hi

def

def_hello

def_hi

If you think there is I want to dump only tables starting with abc*.

pg_dump abc.txt -Fp -t abc* -s DBName

However, it was not recognized because the amount of tables was too large. it answered,

pg_dump: error: too many command-line arguments (first is "DBName")

but this command works fine

pg_dump abc_hello.txt -Fp -t abc_hello -s DBName

How can I pick them out?

Answer 1

Your main mistake is that you didn't consider that * also is a special character for the shell. If you run

pg_dump -t abc* mydatabase

the shell will replace abc* with the names of all files in the current directory that start with abc , so that your command will actually be something like

pg_dump -t abcfile1 abcfile2 abcfile3 mydatabase

which is syntactically not correct and will make pg_dump complain.

You have to protect the asterisk from being expanded by the shell with single quotes:

pg_dump -t 'abc*' mydatabase

The other error in your command line is that you forgot the -f in -f abc.txt .