commit 95f25b1c7f3db610efb9e36c7fd07ed2dea71f4f
author Lalit Maganti <lalitm@google.com> Thu Jun 22 18:11:05 2023 +0100
committer Lalit Maganti <lalitm@google.com> Thu Jun 22 18:11:05 2023 +0100
tree cae8f5cbb0de8be3606221001dce92c78dd705da
parent e42abdb46ce1a0f18a493dad42b56ad8cca1a19b

tp: implement Python style error message stack traces

This CL implements traceback error-messages similar to Python for all
SQL errors. Specifically, every instance of execution of SQL in trace
processor now augments the error message with bread-crumbs adding its
context. This makes it much easier to understand where, how and why
errors happened.

The format of the error message draws heavy inspiration from Python so
as to be instantly understandable by anyone who has seen error
messages from there

For example, suppose you make a syntax error in the shell:
```
> select s from slice
Traceback (most recent call last):
  File "stdin" line 1 col 8
    select s from slice
           ^
no such column: s
```

And if there is an error in a stdlib module called by a metric:
```
Traceback (most recent call last):
  Metric "android/android_startup.sql" line 18 col 1
    SELECT IMPORT('android.startup.startups');
    ^
  Module import "android.startup.startups" line 106 col 5
        startup_i,
        ^
no such column: startup_i
```

Change-Id: Ie181a8aebedc655227a3505e6909d42db7d9cba7
Bug: 282918991
Fixes: 282918991