Il giorno giovedì 1 ottobre 2015 17:57:45 UTC+2, Michael Bayer ha scritto:
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>
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> On 10/1/15 11:41 AM, Massimiliano della Rovere wrote:
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> [...]
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> Second question:
> The "postgresql_ops" parameter of the Index class [1] requires that the
> keys of the dict must equal the .key attributes of the columns/expressions
> used to define the index.
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>
> give your expression a simple label and this should be recognized
>
> expr = table.c.foo.concat(table.c.bar).label('my_expr')
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> postgresql_ops={"my_expr", "gin_trgm_ops"}
>
Thanks!
>
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