feature request, extract comment from create table SQL for each column about sqlite-createtable-parser

[marcobambini]

Let me check what I can do, it seems an useful feature to have.

[calvin2021y]

The downside is need find a workaround for ALTER TABLE ADD COLUMN:

ALTER TABLE `User` ADD COLUMN test INTEGER;
select sql from sqlite_master where name = 'User';

If there is a way to add comment when ALTER table, it will be great for migrate manage.

[calvin2021y]

ADD COLUMN COMMENT will work like this:

ALTER TABLE `User` ADD COLUMN test -- test 123
INTEGER;

[marcobambini]

The ALTER TABLE command is not supported. This repo supports CREATE TABLE statements only.

[calvin2021y]

After call ALTER TABLE, the sqlite_master.sql will updated like you run a new CREATE TABLE sql for current schema, so no need change for sqlite-createtable-parser.

CREATE TABLE User
        -- A table comment
(
        uid INTEGER,    -- A field comment
        flags INTEGER   -- Another field comment
);
ALTER TABLE `User` ADD COLUMN test -- test 123
INTEGER;

select sql from sqlite_master where name = 'User'; will look like this:

CREATE TABLE User
        -- A table comment
(
        uid INTEGER,    -- A field comment
        flags INTEGER   -- Another field comment
, test -- test 123
INTEGER)

[marcobambini]

Fixed by 9c0d6ad.

@calvin2021y please let me know if it works for you.
Only the latest one is reported in case of multiple comments (which refer to a table or a column).