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Lateral join in FB4?
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#18+
Sorry to write You in English this time, dont have a russian layout here :( A question more to FB developers or people that know internal kitchen :) Any news on http://tracker.firebirdsql.org/browse/CORE-3435 I see it is marked as fix version FB4 Beta1. Is it scheduled to be released in FB4 or is this feature already available in beta or should it yet to be implemented? Last time we do web projects with FB as backend DBMS and usually displays data as paged with first/rows clause, so instead of use CTEs this way will be more convenient ... Saw Postgres implemented it about 4 years ago.. would be really fine to have this feature also in FB. Thanks! ... |
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29.11.2018, 17:22 |
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Lateral join in FB4?
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#18+
Dorin Marcoci, до тех пор пока Дмитрий не закомитит репликацию в 4.0 у него нет времени этим заниматься. В Beta1 будет вряд ли, а в Beta2 может быть. ... |
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29.11.2018, 17:31 |
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Lateral join in FB4?
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#18+
Okay, thanks for info, Denis ! Or at least I hope they will improve the optimizer to avoid unneeded scanning of joined tables on requests like this: Код: plaintext 1. 2. 3. 4. 5. 6. 7.
Here clients and groups may return at least one row, but the engine still scan one million of these tables without any reason... It should detect somehow, may the joined table return more than one row or not. ... |
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29.11.2018, 19:38 |
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