sqlite3

Currently we only support Upsert for CockroachDB. Implementing same for MySQL should be pretty straightforward as well.

Wonder if we can also use INSERT ON CONFLICT UPDATE for PostgreSQL to ensure operation with same signature also works.

PostgreSQL

Don't use serial

For new applications, identity columns should be used instead.

Currently, the node colours in the network graph seem somewhat arbitrary. Ideally, the node colours convey meaning... perhaps a gradient to denote distance from the current selected topic/node.

Describe the bug
Character greater then > breaks comment in formatter

To Reproduce
Steps to reproduce the behavior:

1. Go to https://vscode-sqltools.mteixeira.dev/playground/formatter
2. Click on insert into below text:
   -- comments are
   -- breaks by sign greater than >
   -- unfortunately
3. See error

Expected behavior
the comment should not be affected by a character grea