Add FORCE_QUOTE option to Import/Export Data in v9.x

[aquarius777]

I’d like the “Import/Export Data” tool in pgAdmin 4 (v9.1) to include a “Force Quote All Columns” checkbox in the Options tab. This would add the FORCE_QUOTE option to the underlying COPY command, ensuring all CSV values—header and data—are quoted with the specified quote character (e.g., ").

For example, with my table "simple" (columns a, b, c as VARCHAR), I export using Delimiter ; and Quote ", excluding column c. I currently get:

a;b
1;4
2;5
3;6
one;two

But I'd like to get:

"a";"b"
"1";"4"
"2";"5"
"3";"6"
"one";"two"

This would make exports consistent and easier to use in tools expecting fully quoted CSVs, without needing to switch to psql.

I’ve tried a few workarounds:

Using psql with \copy: This works perfectly with a command like:
sql
\copy (SELECT 'a' AS "a", 'b' AS "b" UNION ALL SELECT a, b FROM simple) TO 'C:\path\to\file.csv' WITH (FORMAT CSV, DELIMITER ';', QUOTE '"', FORCE_QUOTE ("a", "b"))

It gives me the quoted output I want, but it’s a hassle to leave pgAdmin, open psql, and write a custom query—especially for quick exports.

Thanks a lot!

[akshay-joshi]

Include all missing options of the COPY command and use the updated syntax format instead of the legacy-compatible version.

After testing, it seems that the BINARY option is not at all working, so fix that issue as well.

[akshay-joshi]

Instructions for QA on what to test:

1. The copy command format should follow the new syntax mentioned in the PostgreSQL docs.
2. Binary format export/import both should work.
3. Text format export/import both should work.
4. Added missing parametes FREEZE, DEFAULT (>=16), FORCE_QUOTE, FORCE_NULL, ON_ERROR (>=17) and LOG_VERBOSITY (>=17).
5. Test the FORCE_QUOTE option with selected columns and all columns. If all columns are selected, then the copy command must have an option like "FORCE_QUOTE *"
6. Test the FORCE_NOT_NULL and FORCE_NULL with selected columns and all columns. If all the columns are selected and the server version is >= 17, then the copy command must have an option like "FORCE_NOT_NULL *" Or "FORCE_NULL *"