How to migrate 'current' mysql timestamp value to postgreSQL

Question

I have Mysql DB that contains table 'tariff' with field

start_date DATETIME DEFAULT (current_timestamp() + interval 10 year),

And when I try to migrate database to postgreSQL using pgloader i get error

ERROR Database error 0A000: value "current" for datetime does not supported any more QUERY: CRE ATE TABLE yamalkernel.tariff 2021-10-06T09:51:25.248000+03:00 FATAL Failed to create the schema, see above

I run pgloader this way

$ pgloader scenario.load

$ cat scenario.load

LOAD DATABASE
FROM mysql://user:[email protected]/database1
INTO postgresql://postgres:[email protected]:5432/database2;

Answer 1

You can "tell" pgLoader to convert the problem field ("start_date") of the "tariff" table (in the "CAST" section), for example as follows:

#!/bin/bash

cat <<EOF > file.load
LOAD DATABASE
FROM mysql://user:[email protected]/database1
INTO postgresql://postgres:[email protected]:5432/database2
CAST column tariff.start_date to "timestamptz DEFAULT now() + interval '10 year'" drop default;
EOF

pgloader -v file.load

Answer 2

there are several errors in that code:

• use timestamp instead of datetime
• use current_timestamp instead of current_timestamp()
• the interval value needs to be enclosed in single quotes

So you need to use:

start_date timestamp DEFAULT current_timestamp + interval '10 year'