[gdal-dev] SQLite attach database as open option

[Rahkonen Jukka (MML)]

Hi,

I wonder if it a) might work and b) could have some practical use to implement an open option for attaching other SQLite databases to SQLite based datasources  https://www.sqlite.org/lang_attach.html. The usage could be something like -oo ATTACH=path/to/other.gpkg:alias, where "alias" part would be optional and give the value for AS in the attach database SQL command. At least it should make it easier to use SQL joins than with the SQL dialects.

-Jukka Rahkonen-
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