Clean up SQL code indentation in test file

Peter Eisentraut <peter@eisentraut.org>

Commit: d0ca708540064aa4a18b226f75ad44dcdd64b383
Author: Peter Eisentraut <peter@eisentraut.org>
Date: 2022-11-18T14:31:55Z
Releases: 16.0
Clean up SQL code indentation in test file

This makes the code layout more consistent inside the same file.

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