/usr/share/libpreludedb/classic/mysql2sqlite.sh is in libpreludedb0 1.0.0-2.3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 | #!/bin/sh
sed \
-e 's/#.*//' \
-e '/^DROP /d' \
-e 's/[a-zA-Z]*INT /INTEGER /' \
-e 's/UNSIGNED //' \
-e 's/ENUM([^)]\{1,\})/TEXT/' \
-e 's/VARCHAR([^)]\{1,\})/TEXT/' \
-e 's/AUTO_INCREMENT/AUTOINCREMENT/' \
-e 's/ENGINE=InnoDB//' \
-e 's/([0-9]\{1,\})//g' \
$1
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